OPEratiOn ManuaL
MODEL SG1400C3
3-POSitiOn SwitCh/ParaLLELinG
1400 aMP StuDiO GEnEratOr
(CuMMinS QSB7-G5 DiESEL EnGinE)
Revision #0 (10/05/11)
To find the latest revision of this
publication, visit our website at:
THIS MANUAL MUST ACCOMPANY THE EQUIPMENT AT ALL TIMES.
EE55916
Download from Www.Somanuals.com. All Manuals Search And Download.
rEPOrtinG SafEty DEfECtS
If you believe that your vehicle has a defect that could cause a crash or could cause
injury or death, you should immediately inform the National Highway Traffic Safety
Administration (NHTSA) in addition to notifying Multiquip at 1-800-421-1244.
If NHTSA receives similar complaints, it may open an investigation, and if it finds
that a safety defect exists in a group of vehicles, it may order a recall and remedy
campaign. However, NHTSA cannot become involved in individual problems
between you, your dealer, or Multiquip.
To contact NHTSA, you may either call the Vehicle Safety Hotline toll-free at 1-888-
Administrator
NHTSA
1200 New Jersey Avenue S.E.
Washington, DC 20590
You can also obtain information about motor vehicle safety from
Sg1400C3 STudio generaTor • operaTion manual — rev. #0 (10/05/11) — page 3
Download from Www.Somanuals.com. All Manuals Search And Download.
taBLE Of COntEntS
SG1400C3
Studio Generator
Proposition 65 Warning ........................................... 2
Reporting Safety Defects......................................... 3
Table Of Contents.................................................... 4
Parts Ordering Procedures...................................... 5
Safety Information .............................................. 6-11
Specifications ........................................................ 12
Dimensions............................................................ 13
Installation ........................................................ 14-15
General Information.......................................... 16-18
Generator Major Components.......................... 20-21
Basic Engine Components ............................... 22-23
Control Panel......................................................... 24
Camlok/Voltage Output Panel................................ 25
Circuit Breaker Panel............................................. 26
Digital Controller ................................................... 27
Load Application/Generator Output....................... 28
Generator Outputs................................................. 29
Inspection/Setup............................................... 30-33
Startup.............................................................. 34-35
Protective Devices................................................. 36
Maintenance..................................................... 37-42
Troubleshooting (Generator).................................. 43
Troubleshooting (Engine)....................................... 44
Troubleshooting (Controller) .................................. 45
Trailer Guidelines.............................................46--60
NOTICE
Specifications are subject to change without notice.
page 4 — Sg1400C3 STudio generaTor • operaTion manual — rev. #0 (10/05/11)
Download from Www.Somanuals.com. All Manuals Search And Download.
PartS OrDErinG PrOCEDurES
Ordering parts has never been easier!
Choose from three easy options:
Effective:
January 1st, 2006
Best Deal!
Order via Internet (Dealers Only):
Order parts on-line using Multiquip’s SmartEquip website!
If you have an MQ Account, to obtain a Username
and Password, E-mail us at: parts@multiquip.
com.
■ View Parts Diagrams
■ Order Parts
■ Print Specification Information
To obtain an MQ Account, contact your
District Sales Manager for more information.
Use the internet and qualify for a 5% Discount
on Standard orders for all orders which include
complete part numbers.*
to log in and save!
Order Parts
Note: Discounts Are Subject To Change
Fax your order in and qualify for a 2% Discount
on Standard orders for all orders which include
complete part numbers.*
Order via Fax (Dealers Only):
All customers are welcome to order parts via Fax.
Domestic (US) Customers dial:
1-800-6-PARTS-7 (800-672-7877)
Note: Discounts Are Subject To Change
Domestic (US) Dealers Call:
Order via Phone:
1-800-427-1244
Non-Dealer Customers:
International Customers should contact
their local Multiquip Representatives for
Parts Ordering information.
Contact your local Multiquip Dealer for
parts or call 800-427-1244 for help in
locating a dealer near you.
When ordering parts, please supply:
❒
Dealer Account Number
❒
Specify Preferred Method of Shipment:
❒
❒
❒
❒
❒
Dealer Name and Address
✓ UPS/Fed Ex
✓ DHL
✓ Truck
■
■
Priority One
Ground
Shipping Address (if different than billing address)
Return Fax Number
■ Next Day
Second/Third Day
Applicable Model Number
■
Quantity, Part Number and Description of Each Part
NOTICE
All orders are treated as Standard Orders and will
ship the same day if received prior to 3PM PST.
WE ACCEPT ALL MAJOR CREDIT CARDS!
Sg1400C3 STudio generaTor • operaTion manual — rev. #0 (10/05/11) — page 5
Download from Www.Somanuals.com. All Manuals Search And Download.
SafEty infOrMatiOn
Do not operate or service the equipment before reading the
entire manual. Safety precautions should be followed at all
times when operating this equipment. Failure to read and
understand the safety messages and operating instructions
could result in injury to yourself and others.
Potential hazards associated with the operation of this
equipment will be referenced with hazard symbols which
may appear throughout this manual in conjunction with
safety messages.
SaFeTY meSSageS
The four safety messages shown below will inform you
about potential hazards that could injure you or others.The
safety messages specifically address the level of exposure
to the operator and are preceded by one of four words:
danger, Warning, CauTion or noTiCe.
SaFeTY SYmBolS
danger
Indicates a hazardous situation which, if not avoided,
Will result in deaTH or SeriouS inJurY.
Warning
Indicates a hazardous situation which, if not avoided,
Could result in deaTH or SeriouS inJurY.
CauTion
Indicates a hazardous situation which, if not avoided,
Could result in minor or moderaTe inJurY.
NOTICE
Addresses practices not related to personal injury.
page 6 — Sg1400C3 STudio generaTor • operaTion manual — rev. #0 (10/05/11)
Download from Www.Somanuals.com. All Manuals Search And Download.
SafEty infOrMatiOn
„ never use accessories or attachments that are not
recommended by MQ Power for this equipment.Damage
to the equipment and/or injury to user may result.
general SaFeTY
CauTion
„ never operate this equipment without proper protective
clothing, shatterproof glasses, respiratory protection,
hearing protection, steel-toed boots and other protective
devices required by the job or city and state regulations.
„ alWaYS know the location of the nearest
fire extinguisher.
„ alWaYS know the location of the nearest
first aid kit.
„ alWaYS know the location of the nearest
phone or keep a phone on the job site. Also, know the
phone numbers of the nearest ambulance, doctor and
fire department. This information will be invaluable in
the case of an emergency.
„ never operate this equipment when not
feeling well due to fatigue, illness or when
under medication.
„ never operate this equipment under the influence of
drugs or alcohol.
generaTor SaFeTY
danger
„ neveroperatetheequipmentinanexplosive
atmosphereornearcombustiblematerials.An
explosion or fire could result causing severe
bodily harm or even death.
„ alWaYS check the equipment for loosened threads or
bolts before starting.
„ do noT use the equipment for any purpose other than
its intended purposes or applications.
Warning
„ never disconnect any emergency or safety devices.
These devices are intended for operator safety.
Disconnection of these devices can cause severe injury,
bodily harm or even death.Disconnection of any of these
devices will void all warranties.
NOTICE
„ This equipment should only be operated by trained and
qualified personnel 18 years of age and older.
„ Whenever necessary, replace nameplate, operation and
safety decals when they become difficult read.
CauTion
„ Manufacturer does not assume responsibility for any
accident due to equipment modifications. Unauthorized
equipment modification will void all warranties.
„ never lubricate components or attempt service on a
running machine.
NOTICE
„ alWaYS ensure generator is on level ground before use.
„ alWaYS keep the machine in proper running condition.
„ Fix damage to machine and replace any broken parts
immediately.
„ alWaYS store equipment properly when it is not being
used.Equipment should be stored in a clean, dry location
out of the reach of children and unauthorized personnel
Sg1400C3 STudio generaTor • operaTion manual — rev. #0 (10/05/11) — page 7
Download from Www.Somanuals.com. All Manuals Search And Download.
SafEty infOrMatiOn
engine SaFeTY
NOTICE
danger
„ never run engine without an air filter or with a dirty air
filter.Severe engine damage may occur.Service air filter
frequently to prevent engine malfunction.
„ The engine fuel exhaust gases contain poisonous carbon
monoxide. This gas is colorless and odorless, and can
cause death if inhaled.
„ never tamper with the factory settings
of the engine or engine governor. Damage
to the engine or equipment can result
if operating in speed ranges above the
maximum allowable.
„ The engine of this equipment
requires an adequate free
flow of cooling air. never
operate this equipment in
any enclosed or narrow area
where free flow of the air is
restricted. If the air flow is
restricted it will cause injury to people and property and
serious damage to the equipment or engine.
„ Wet stacking is a common problem with diesel engines
which are operated for extended periods with light or
no load applied.When a diesel engine operates without
sufficient load (less than 40% of the rated output), it will
not operate at its optimum temperature. This will allow
unburned fuel to accumulate in the exhaust system,
which can foul the fuel injectors, engine valves and
exhaust system, including turbochargers, and reduce
the operating performance.
Warning
„ do noT place hands or fingers inside engine
compartment when engine is running.
In order for a diesel engine to operate at peak efficiency,
it must be able to provide fuel and air in the proper ratio
and at a high enough engine temperature for the engine
to completely burn all of the fuel.
„ never operate the engine with heat shields or
guards removed.
„ Keep fingers, hands hair and clothing away
from all moving parts to prevent injury.
Wet stacking does not usually cause any permanent
damage and can be alleviated if additional load is
applied to relieve the condition.It can reduce the system
performance and increase maintenance. Applying an
increasing load over a period of time until the excess
fuel is burned off and the system capacity is reached
usually can repair the condition. This can take several
hours to burn off the accumulated unburned fuel.
„ do noT remove the radiator cap while the
engine is hot. High pressure boiling water
will gush out of the radiator and severely
scald any persons in the general area of
the generator.
„ do noT remove the coolant drain plug while the engine
is hot. Hot coolant will gush out of the coolant tank and
severely scald any persons in the general area of the
generator.
„ State Health Safety Codes and Public Resources
Codes specify that in certain locations, spark arresters
must be used on internal combustion engines that use
hydrocarbon fuels.A spark arrester is a device designed
to prevent accidental discharge of sparks or flames
from the engine exhaust. Spark arresters are qualified
and rated by the United States Forest Service for this
purpose. In order to comply with local laws regarding
spark arresters, consult the engine distributor or the
local Health and Safety Administrator.
„ do noT remove the engine oil drain plug while the
engine is hot. Hot oil will gush out of the oil tank and
severely scald any persons in the general area of the
generator.
CauTion
„ never touch the hot exhaust manifold,
muffler or cylinder.Allow these parts to cool
before servicing equipment.
page 8 — Sg1400C3 STudio generaTor • operaTion manual — rev. #0 (10/05/11)
Download from Www.Somanuals.com. All Manuals Search And Download.
SafEty infOrMatiOn
„ Make sure the hitch and coupling of the towing vehicle
are rated equal to, or greater than the trailer “gross
vehicle weight rating.”
Fuel SaFeTY
danger
„ do noT start the engine near spilled fuel or combustible
fluids. Diesel fuel is extremely flammable and its vapors
can cause an explosion if ignited.
„ alWaYS inspect the hitch and coupling for wear. never
tow a trailer with defective hitches, couplings, chains, etc.
„ Check the tire air pressure on both towing vehicle and
trailer. Trailer tires should be inflated to 50 psi cold.
Also check the tire tread wear on both vehicles.
„ alWaYS refuel in a well-ventilated area, away from
sparks and open flames.
„ alWaYS use extreme caution when working with
flammable liquids.
„ alWaYS make sure the trailer is equipped with a safety
chain.
„ do noT fill the fuel tank while the engine is running
or hot.
„ alWaYS properly attach trailer’s safety chains to towing
vehicle.
„ do noT overfill tank, since spilled fuel could ignite if it
comes into contact with hot engine parts or sparks from
the ignition system.
„ alWaYS make sure the vehicle and trailer directional,
backup, brake and trailer lights are connected and
working properly.
„ Store fuel in appropriate containers, in well-ventilated
areas and away from sparks and flames.
„ DOT Requirements include the following:
• Connect and test electric brake operation.
„ never use fuel as a cleaning agent.
• Secure portable power cables in cable tray with tie
wraps.
„ do noT smoke around or near the
equipment. Fire or explosion could result
from fuel vapors or if fuel is spilled on a
hot engine.
„ The maximum speed for highway towing is55 mpHunless
posted otherwise.Recommended off-road towing is not to
exceed 15 mpH or less depending on type of terrain.
ToWing SaFeTY
„ Avoid sudden stops and starts.This can cause skidding,
or jack-knifing. Smooth, gradual starts and stops will
improve towing.
CauTion
„ Check with your local county or state safety
towing regulations, in addition to meeting
Department of Transportation (DOT)
SafetyTowing Regulations, before towing
your generator.
„ Avoid sharp turns to prevent rolling.
„ Trailer should be adjusted to a level position at all times
when towing.
„ Raise and lock trailer wheel stand in up position when
towing.
„ Refer to MQ Power trailer manual for additional safety
information.
„ Place chock blocks underneath wheel to prevent rolling
while parked.
„ In order to reduce the possibility of an accident while
transporting the generator on public roads, alWaYS
make sure the trailer that supports the generator and
the towing vehicle are mechanically sound and in good
operating condition.
„ Place support blocks underneath the trailer’s bumper
to prevent tipping while parked.
„ Use the trailer’s swivel jack to adjust the trailer height to
a level position while parked.
„ alWaYS shutdown engine before transporting
Sg1400C3 STudio generaTor • operaTion manual — rev. #0 (10/05/11) — page 9
Download from Www.Somanuals.com. All Manuals Search And Download.
SafEty infOrMatiOn
„ Make sure power cables are securely connected to the
generator’s output receptacles. Incorrect connections
may cause electrical shock and damage to the
generator.
eleCTriCal SaFeTY
danger
„ do noT touch output terminals during
operation. Contact with output terminals
duringoperationcancauseelectrocution,
electrical shock or burn.
NOTICE
„ alWaYS make certain that proper power or extension
cord has been selected for the job. See Cable Selection
Chart in this manual.
„ The electrical voltage required to
operate the generator can cause severe
grounding Safety
injury or even death through physical contact with live
circuits. Turn generator and all circuit breakers oFF
before performing maintenance on the generator or
making contact with output terminals.
danger
„ alWaYS make sure that electrical circuits are properly
grounded to a suitable earth ground (ground rod) per
the National Electrical Code (NEC) and local codes
before operating generator. Severe injury or death by
electrocution can result from operating an ungrounded
generator.
„ never insert any objects into the output
receptacles during operation. This is
extremely dangerous.The possibility exists
of electrical shock, electrocution or
death.
„ never use gas piping as an electrical ground.
„ Backfeed to a utility system can cause
electrocution and/or property damage.
never connect the generator to a
building’s electrical system without
a transfer switch or other approved
device. All installations should be
performed by a licensed electrician in accordance with
all applicable laws and electrical codes. Failure to do so
could result in electrical shock or burn, causing serious
injury or even death.
power Cord/Cable Safety
danger
„ never let power cords or cables lay in water.
„ never stand in water while AC power from the
generator is being transferred to a load.
„ never use damaged or worn cables or cords when
connecting equipment to generator. Inspect for cuts in
the insulation.
„ never grab or touch a live power
cord or cable with wet hands. The
possibility exists of electrical shock,
electrocution or death.
page 10 — Sg1400C3 STudio generaTor • operaTion manual — rev. #0 (10/05/11)
Download from Www.Somanuals.com. All Manuals Search And Download.
SafEty infOrMatiOn
BaTTerY SaFeTY
environmenTal SaFeTY
danger
NOTICE
„ do noT drop the battery. There is a possibility that the
battery will explode.
„ Dispose of hazardous waste properly.
Examples of potentially hazardous waste
are used motor oil, fuel and fuel filters.
„ do noT expose the battery to open flames,
sparks, cigarettes, etc.The battery contains
combustible gases and liquids. If these
gases and liquids come into contact with a
flame or spark, an explosion could occur.
„ do noT use food or plastic containers to
dispose of hazardous waste.
„ do noT pour waste, oil or fuel directly onto the ground,
down a drain or into any water source.
Warning
„ alWaYSwearsafetyglasseswhenhandling
the battery to avoid eye irritation.The battery
contains acids that can cause injury to the
eyes and skin.
„ Use well-insulated gloves when picking up the battery.
„ alWaYS keep the battery charged. If the battery is not
charged, combustible gas will build up.
„ alWaYS recharge the battery in a well-ventilated
environmenttoavoidtheriskofadangerousconcentration
of combustible gasses.
„ If the battery liquid (dilute sulfuric acid) comes into
contact with clothing or skin, rinse skin or clothing
immediately with plenty of water.
„ If the battery liquid (dilute sulfuric acid) comes into
contact with eyes, rinse eyes immediately with plenty
of water and contact the nearest doctor or hospital to
seek medical attention.
CauTion
„ alWaYS disconnect the negaTive battery terminal
before performing service on the generator.
„ alWaYS keep battery cables in good working condition.
Repair or replace all worn cables.
Sg1400C3 STudio generaTor • operaTion manual — rev. #0 (10/05/11) — page 11
Download from Www.Somanuals.com. All Manuals Search And Download.
SPECifiCatiOnS
Table 1. generator Specifications
SG1400C3
model
Revolving field, self ventilated,
open protected type synchronous generator
Type
armature Connection
no of poles
12-Lead WYE
4
prime output
1Ø voltage
200 kVA
120/240 V
3Ø voltages
120/208 V and 277/480 V
60 Hz
Frequency
voltage regulation
(no load to full load)
1%
Frequency regulation
(steady state load)
0.25%
Speed
1800 rpm
0.8
power Factor
aux. aC voltage
120/240V, 60 Hz
Weight (generator only)
Weight (Trailer only)
dimensions (lxWxH)
5,900 lbs. (2,994 kg)
2,640 lbs. (1,170 kg)
100 x 48 x 110 in (254 x 122 x 279 cm)
Table 2. engine Specifications
model
Cummins QSB7-G5
Tier 3
emissions
4 cycle, direct injection, turbocharged,
charge air cooled
Type
no. of Cylinders
Bore x Stroke in (mm)
displacement
6 cylinders
4.21 x 4.88 (107 x 124)
408 cu. in. (6,690 cc)
279 HP/1800 RPM
Electric
rated output
Starting
Coolant Capacity
lube oil Capacity
Fuel Type
7.8 gal. (29 liters)
5.0 gal. (19.0 liters)
#2 Diesel Fuel
Fuel Tank Capacity
150 gal. (567 liters)
13.3 gal. (64 L)/hr at full load
10.6 gal. (40 L)/hr at 3/4 load
Fuel Consumption
7.8 gal. (30 L)/hr at 1/2 load
4.0 gal. (15 L)/hr at 1/4 load
Table 3. Battery Specifications
Battery (Top post)
12V 750 CCA x 2 (24 VDC System ) Group 27
8 x 12 x 6.6 (20.3 x 30.5 x 16.8)
dimensions HxWxl in. (cm)
page 12 — Sg1400C3 STudio generaTor • operaTion manual — rev. #0 (10/05/11)
Download from Www.Somanuals.com. All Manuals Search And Download.
DiMEnSiOnS
TOP VIEW
A
B
C
Figure 1. Dimensions
D
E
F
SIDE VIEW
G
H
J
I
L
K
Table 4. dimensions
reference
letter
dimensions
in. (mm)
reference
letter
dimensions
in. (mm)
M
A
B
90 (2,286)
H
I
130 (3,302)
22.5 (571)
115 (2,921)
FRONT VIEW
23 (584)
Chrome Wheels
C
D
96 (2,438)
27 (686)
J
24 (610)
Aluminum Wheels
A
C
V
O
L
T
S
A
C
A
M
P
E
R
E
S
A
C
A
M
P
E
R
E
S
J
A
C
A
M
P
E
R
E
S
H
E
R
T
Z
E
F
24 (610)
24 (610)
180 (4,572)
24.5 (622)
47 (1,194)
K
L
G
79 (2,007)
M
Sg1400C3 STudio generaTor • operaTion manual — rev. #0 (10/05/11) — page 13
Download from Www.Somanuals.com. All Manuals Search And Download.
inStaLLatiOn
GENERATOR
GROUND LUG
GROUND ROD
FOR EARTH
GROUND
NOTE: GROUND LUG MUST
BE INSTALLED BY USER.
CONNECT TO
BUILDING
GROUND
GROUND CABLE
8 FT. MINIMUM
REFERENCE
NEC 250-52(C)
Figure 2. Typical Generator Grounding Application
page 14 — Sg1400C3 STudio generaTor • operaTion manual — rev. #0 (10/05/11)
Download from Www.Somanuals.com. All Manuals Search And Download.
inStaLLatiOn
ouTdoor inSTallaTion
generaTor grounding
Install the generator in a area that is free of debris,
bystanders, and overhead obstructions. Make sure the
generator is on secure level ground so that it cannot slide
or shift around. Also install the generator in a manner so
that the exhaust will not be discharged in the direction of
nearby homes.
To guard against electrical shock and possible damage to
the equipment, it is important to provide a good earTH
ground.
Article 250 (Grounding) of the National Electrical Code
(NEC) provides guidelines for proper grounding and
specifies that the cable ground shall be connected to the
grounding system of the building as close to the point of
cable entry as practical.
The installation site must be relatively free from moisture
and dust.All electrical equipment should be protected from
excessive moisture. Failure to do will result in deterioration
of the insulation and will result in short circuits and
grounding.
NEC articles 250-64(b) and 250-66 set the following
grounding requirements:
1. Use one of the following wire types to connect the
generator to earth ground.
Foreign materials such as dust, sand, lint and abrasive
materials have a tendency to cause excessive wear to
engine and alternator parts.
a. Copper - 10 AWG (5.3 mm2)
b. Aluminum - 8 AWG (8.4 mm2)
CauTion
Pay close attention to ventilation when operating the
generator inside tunnels and caves.The engine exhaust
contains noxious elements. Engine exhaust must be
routed to a ventilated area.
2. When grounding the generator (Figure 2) connect the
ground cable between the lock washer and the nut on
the generator and tighten the nut fully. Connect the
other end of the ground cable to earth ground.
3. NEC article 250-52(c) specifies that the earth ground rod
should be buried a minimum of 8 ft. into the ground.
indoor inSTallaTion
Exhaust gases from diesel engines are extremely
poisonous. Whenever an engine is installed indoors the
exhaust fumes must be vented to the outside. The engine
should be installed at least two feet from any outside wall.
Using an exhaust pipe which is too long or too small can
cause excessive back pressure which will cause the engine
to heat excessively and possibly burn the valves.
NOTICE
When connecting the generator to any buildings
electrical system alWaYS consult with a licensed
electrician.
NOTICE
If connection of the ground rod is not feasible, please
check city, local or state electrical requirements on
generator grounding requirements.
Sg1400C3 STudio generaTor • operaTion manual — rev. #0 (10/05/11) — page 15
Download from Www.Somanuals.com. All Manuals Search And Download.
GEnEraL infOrMatiOn
shaft continues to rotate, the main rotor (field) induces a
voltage into the generator's main stator (armature).At rated
speed, the main stator's voltage produced by the residual
magnetism of the exciter allows the automatic voltage
regulator to function.
generator
The MQ Power Model SG1400C3 is a 200kVA studio
generator that is designed as a high quality power source
for entertainment and studio applications.
In keeping with Multiquip's policy of constantly improving
its products, the specifications quoted herein are subject
to change without prior notice.
The regulator provides voltage to the exciter resulting in
a build-up of generator terminal voltage. This system of
using residual magnetism eliminates the need for a special
field flashing circuit in the regulator. After the generator
has established the initial residual voltage, the regulator
provides a controlled DC field voltage to the exciter stator
resulting in a controlled generator terminal voltage.
permanent magnet generator excitation System
The SG1400C3 generator is equipped with a PMG
(Permanent Magnet Generator) generator end. The
excitation system provides a minimum short circuit support
current of 300% of the standby rating for 10 seconds at 60
Hz, and approximately 275% at 50 Hz.
voltage regulation
In the standard configuration (shunt excited), the automatic
voltage regulator receives both its input power and voltage
sensing from the generator's output terminals.The regulator
automatically monitors the generator's output voltage
against an internal reference set point and provides the
necessary DC output voltage to the exciter field required
to maintain constant generator terminal voltage. The
generator's terminal voltage is changed by adjusting the
regulator's reference set point.
Both the PMG and the exciter are mounted outboard of the
bearing for ease of maintenance. The rotating brushless
exciter features hermetically sealed diodes for three-phase
full-wave rectification.The three-phase bridge is protected
against abnormal transient conditions by a multiplate
selenium surge protector.
engine
This generator is powered by a six-cylinder, 4-cycle direct
injection, turbocharged, air-cooled Cummins QSB7-G5
diesel engine. Engine speed is set at the factory at 1800
RPM. This engine is designed to meet every performance
requirement for the generator. Refer to Table 2 for engine
specifications.
electronic governor System
The electronic governor system controls the RPMs of the
engine.When the engine demand increases or decreases,
the governor system regulates the frequency variation to
0.25%.
Battery
principle of operation
The battery system is located in the engine compartment
on the sub-base. The battery’s primary purpose is to
provide starting power for the diesel engine starter motor.
The battery system is comprised of two 12 VDC, sealed
lead acid batteries wired in series to provide 24 VDC to
the starting motor. The battery is charged by the charging
alternator while the engine is engaged.
This generator is a brushless, self-excited, externally
voltage regulated, synchronous AC generator. The
generator is made up of six major components:main stator
(armature), main rotor (field), exciter stator (field), exciter
rotor (armature), rectifier assembly, and voltage regulator.
The generator's exciter consists of a stationary field and
a rotating armature. The stationary field (exciter stator)
is designed to be the primary source of the generator's
residual magnetism. This residual magnetism allows the
exciter rotor (armature) to produce AC voltage even when
the exciter stator (field) is not powered. This AC voltage
is rectified to DC by the rotating rectifier assembly and
fed directly to the main rotor (field). As the generator
exhaust System
The exhaust system is located above the diesel engine.The
exhaust system is comprised of rigid and flexible tubing, a
silencer, and a roof-mounted exhaust riser with a rain cap.
page 16 — Sg1400C3 STudio generaTor • operaTion manual — rev. #0 (10/05/11)
Download from Www.Somanuals.com. All Manuals Search And Download.
GEnEraL infOrMatiOn
Fuel Tank
interior lighting
This generator can be equipped with a 150 gallon (567
liters) fuel tank located beneath the trailer deck. The tank
is made of steel (baffled). The tank can be filled from an
external fill port located on the side of the trailer. The fill
port has a 2-inch (51 mm) fill neck with vented cap.
The interior lighting system is distributed throughout the
interior. There are three separate lighting fixtures. Two
lights are in the engine compartment, and one light is in
the generator compartment.The lighting system operates
from the 24 VDC battery system.
When refueling, it is recommended to use ASTM-D975/No.
2 diesel fuel.A drain port is provided on the end of the tank.
The light fixtures are sealed incandescent bulbs which are
activated by a 0-15 minute timer switch located on the side
control panel box. The DC lighting system can be used to
perform off-line maintenance or assist in setup prior to AC
power connection.
Fuel priming pump
The generator set is equipped with an electric (24 VDC)
fuel priming pump to assist in priming the system for
maintenance purposes.The priming pump, bypass valves,
and priming switch are located on the side of the diesel
engine in the engine compartment.
Trailer (optional)
If equipped, the generator set can be mounted on a tandem
axle trailer. Standard trailer is available with 8-lug chrome
wheels and electric or hydraulic brakes. Options may
include electric jack stands, adjustable hitch, ground rod
holder and rear stabilizing jacks.
Fuel Water Separator
A 30-micron Racor 900 fuel water separator is part of the
fuel system assembly and is located on the side of the
engine in within the enclosure compartment.
opTionS
„ Battery Charger — 24 VDC/3 AMP, 120 V Input
The supply line between the engine fuel pump and tank
passes through an in-line fuel/water separator filter. The
filter element is rated to filter elements down to 10 microns.
„ Battery disconnect Switch — 400 Amps
„ optima red Top Batteries — Replaces standard
batteries
intake ventilation door
„ Block Heater —120 V, 1500 Watt
The intake air ventilation door is located on the roof of the
generator set enclosure near the control panel.The door is
hydraulically actuated. Upon startup of the diesel engine,
pressure fills the cylinder and opens the door. Intake air
passes through the opening, and across the engine’s
radiator to cool the engine.
„ CSa package — Includes 400 Amp and 200 Amp Circuit
Breakers
„ exterior lights
„ Fire extinguisher and Box — Mounted on Door
„ Forklift Base
During rainy conditions the roof ventilation door will close
when the front ventilation door is opened.
„ gpS and remote monitoring module
„ lift-off doors
„ low oil murphy Swichgage®
„ oil level Sight glass
„ 30-micron racor 1000 Fuel/Water Separator —
Replaces Racor 900
Sg1400C3 STudio generaTor • operaTion manual — rev. #0 (10/05/11) — page 17
Download from Www.Somanuals.com. All Manuals Search And Download.
GEnEraL infOrMatiOn
„ Switches And Operating Controls
intelivision 5 ™ digital Controller
• Run / Off / Auto / Load Test Buttons
• Decrement / Increment / Previous
(Exit) /Next (Enter) Program Buttons
• Emergency Stop Button
The InteliVision 5 Digital Controller provides monitoring
and fault detection capability of all engine and generator
operating parameters. A list of operating parameters is
shown below:
• Audible Alarm Horn
„ AC Metering Display
• Alarm Horn Silence Button
• Lamp Test Button
• Voltage/Amperage / Frequency
• Generator Phase Voltage / Current
• Generator Frequency
• Fault Reset Function
• RS-485 Remote Communications,
External Expansion Module Ports
„ Timer Countdown Display
„ Engine Information Display
• Engine Temperature / Oil Pressure (psi)
• Battery Voltage (DC) / Tachometer
• Hourmeter
• Engine Start Delay
• Oil Bypass
„ Minor Fault Warning Display
• Overcrank
• Switch Not In Auto
• Low Fuel Level
• Cycle Crank
• Starter Re-engage Delay
• Bypass Delay
• Low Oil Pressure Alarm
• Low Engine Temperature
• High Engine Temperature Alarm
• Low Battery Voltage
• High Battery Voltage
• Weak Battery Condition
• Battery Charger Input Fail
• Undervoltage
„ Control LED Indicators
• Switch Position (Run, Off, Auto, Test)
• Common Alarm (Minor Fault)
• Common Shutdown (Major Fault)
• Generator Ready (When in Auto)
• Speed Signal
• Emergency Stop
• Over / Underfrequency
• Overcurrent
„ Diagnostic LED Indicators:
• Run Output Energized
„ Major Fault Shutdown Display
• Crank Output Energized
• Overvoltage
• Remote Start Signal Initiated
• Common Fail Output Energized
• Watchdog - CPU Running
• Programmable Output Contacts
• Emergency Stop
• Loss Of Speed
• Overcrank
• Overspeed
• Low Oil Pressure
• High Engine Temperature
• Low Coolant Level
• Spare Programmable Digital Faults
page 18 — Sg1400C3 STudio generaTor • operaTion manual — rev. #0 (10/05/11)
Download from Www.Somanuals.com. All Manuals Search And Download.
nOtES
Sg1400C3 STudio generaTor • operaTion manual — rev. #0 (10/05/11) — page 19
Download from Www.Somanuals.com. All Manuals Search And Download.
GEnEratOr MaJOr COMPOnEntS
1
3
4
2
6
14
16
15
5
7
13
30
12
31
32
33
11
9
10
8
17
18
Figure 3. Major Components
18
19
20
21
22
page 20 — Sg1400C3 STudio generaTor • operaTion manual — rev. #0 (10/05/11)
Download from Www.Somanuals.com. All Manuals Search And Download.
GEnEratOr MaJOr COMPOnEntS
28
29
23
Inside
34
Housing
24
24
25
26
27
Figure 3. Major Components
Table 5. generator major Components
iTem
no.
iTem
iTem
no.
deSCripTion
deSCripTion
no.
deSCripTion
1
2
3
4
Muffler
13
14
15
16
Hydraulic Oil Sight Gauge
Fuel Priming Pump Switch
Fuel-Water Separator
25 Rain Door Intake Vent
26 Control Box
Air Filter
Hydraulic Cylinders
27 Camlok Panel
28 Rain Cap
Coolant Overflow Bottle
Hydraulic Actuator Manifold
Charge Oil Cooler
(Hydraulic)
5
17
Radiator
29 Housing Assembly
6
7
Charge Air Cooler
Saddlebox
18
19
20
21
22
23
24
Interior Lights
30 Water Drain
31 Oil Drain
Circuit Breaker Panel
Coolant Filter
8
3 kVA Transformer
Generator
32 Fuel In
9
Hydraulic Oil Tank
Batteries
33 Fuel Out
10
11
12
Fuel Gauge
34 GPS Module (Option)
Fuel Cap, Vented
Hydraulic Oil Filter
Roof Intake/Exhaust Vents
Exterior Lights (Option)
Sg1400C3 STudio generaTor • operaTion manual — rev. #0 (10/05/11) — page 21
Download from Www.Somanuals.com. All Manuals Search And Download.
BaSiC EnGinE COMPOnEntS
1
11
2
10
6
7
3
9
8
4
5
Figure 4. Basic Engine Components
Table 6. Basic engine Components
iTem no.
deSCripTion
Oil Filler Cap
1
2
Alternator
Oil Filter
3
4
Starter
5
Oil Drain Plug
Belt
6
7
Water Pump
Oil Dipstick
Fuel Filter
Fuel Rail
8
9
10
11
Turbocharger
page 22 — Sg1400C3 STudio generaTor • operaTion manual — rev. #0 (10/05/11)
Download from Www.Somanuals.com. All Manuals Search And Download.
BaSiC traiLEr COMPOnEntS
1
2
3
12
4
5
8
9
10 11
7
6
14
13
16
19
18
15
17
Figure 5. Basic Trailer Components
The definitions below describe the controls and functions
of the Trailer (Figure 6).
10. license plate lights — Illuminates license plate.
11. axle — Tandemum axle, Gross Axle Weight Rating
(GAWR) 6,000 lbs. (2,722 kg) Gross Vehicle Weight
Rating is 10,000 lbs. (4,536 kg).
1. pintle eye Coupler — Adjustable 3-inch eye coupler
rated at 20,000 lbs. (9,072 kg).
2. Hydraulic Brake actuator — Replaceable bolt-on
actuator, assists in the stopping of the trailer. Rated at
12,000 lbs. (5,443 kg)
12. rear Bumper reflectors — Provides high visibility
when towing in dark areas.
13. Safety Chains — Connect to towing vehicle.Reference
towing section in this manual.
3. SpareTire —Tongue mounted spare tire with anti-theft
wheel lock and locking mount.
14. Tool Box — Tongue mounted tool box, lift spare tire
to gain access to this compartment
4. Jackstand — Tongue mounted swivel jack with flat
disc foot, rated 5000 lbs. (2,268 kg) lift.
15. Fuel Tank — Holds 150 gallons (568 liters) of No. 2
diesel fuel.
5. reflectors — Side mounted reflectors are mounted on
both sides of the trailer to provide high visibility when
towing in dark areas.
16. FuelTank Filler port — Fuel filler port, 2-inch (51 mm)
neck.
6. Tires — Recommended tire size is LT235/85R16 LR E.
Tire load rating is 3,500 lbs/tire.
17. Side running lamps — Provides high visibility when
towing in dark areas.
7. reflectiveTape — Provides high visibility when towing
in dark areas.
18. Tool Box locking latch — Release this latch to gain
access to tool box. Pull spare tire upward and back.
8. Brake/Turn lights — DOT approved tail, stop, and
turn signal lamps.
19. plug Holder — Holds trailer harness (lights) cable plug.
9. Bumper guard — Protects trailer frame when coming
in contact with stationary objects.
Sg1400C3 STudio generaTor • operaTion manual — rev. #0 (10/05/11) — page 23
Download from Www.Somanuals.com. All Manuals Search And Download.
COntrOL PanEL
2
3
4
13
1
8
12
11
7
14
6
5
15
9
10
16
17
Figure 6. Control Panel
The definitions below describe the controls and functions
of the Control Panel (Figure 6).
10. Controller power Switch — Provides power to engine
controller.
1. voltage adjust Switch — To increase the output
voltage, pull upward and hold the switch until the
desired voltage is achieved by monitoring the AC
voltage display (item 8). To decrease the voltage, pull
downward.
11. light Switch — In the up position, turns on exterior
lights. In the down position, turns on panel lighting. In
the center position, turns off all lights.
12. panel lights — Located on each side of the digital
control panel is a panel light. Lights are activated by
light switch.
2. line 1 aC amps display — Indicates the amount of
current the load is drawing from line 1 of the generator.
13. lightTimer Control —The interior lights are controlled
by an electronic turn dial timer that allows the operator
to turn on the lights inside the generator for up to 15
minutes.The lights will automatically shut off when the
timer reaches zero.
3. line 2 aC amps display — Indicates the amount of
current the load is drawing from line 2 of the generator.
4. line 3 aC amps display — Indicates the amount of
current the load is drawing from line 3 of the generator.
14. aC output Connector — Provides AC power to
various electronic assemblies.
5. voltage Status leds — During operation these status
LED's will indicate the phase/voltage of the generator,
3Ø-277/480, 3Ø-120/208 or 1Ø-120/240.
15. dC output Connector — Provides DC power to
engine interface.
6. Frequency display — Indicates the frequency of the
generator in Hertz.
16. Fan Control module — Provides necessary control
electronics to operate fan.
7. aCvoltmeter display — Indicates the output voltage
present at the camlok terminals.This display is used in
conjunction with the voltmeter select switch (item 8).
17. engine Com Connector — 9-pin connector for
communication to engine via a PC with engine software.
8. voltmeter Selector Switch — Place switch in desired
position to read line-line or line-neutral voltage. Switch
is used in conjunction with AC voltmeter display (item 7).
9. digital Controller — Starts and stops the generator
and monitors various engine operating parameters.
page 24 — Sg1400C3 STudio generaTor • operaTion manual — rev. #0 (10/05/11)
Download from Www.Somanuals.com. All Manuals Search And Download.
CaMLOk/vOLtaGE OutPut PanEL
3
1
2
4
GREEN
WHITE
RED
BLUE
BLACK
5
6
7
7
8
9
8
Figure 7. Camlok/Voltage Output Panel
The definitions below describe the controls and functions
of the Camlok/Voltage Output Panel (Figure 7).
7. 120 vaC output receptacles — These 15-amp
receptacles provide 120 VAC output. The maximum
allowable combined amps (both receptacles) is 25 amps
when the voltage selector switch in the 3Ø 277/480VAC
position.
1. CB4/CB5 Circuit Breakers — These circuit breakers
protect the 120 VAC auxiliary output receptacles from
overload.
8. Bates 120vaC output receptacles — These
receptacles provide AC voltage output.Each receptacle
is protect by a 100 amp breaker. These receptacles
cannot be used when the voltage selector switch is in
the 3Ø 277/480 VAC position.
2. CB6/CB7 Circuit Breakers — These circuit breakers
protect the bates output receptacles from overload.
3. generator voltage Test points — To determine if
the generator's output voltage is present and correct,
connect a test meter to these test points during
troubleshooting and maintenance.
9. Camlok receptacles — These output voltage
connection points (6 pairs) are used for load connection.
alWaYS pay close attention when connecting and
disconnecting power cables from these camlok
receptacles. The possibility exists of electrocution,
shock or even death if cables are connected or
unplugged when the bus hot indicator lamp is lit.
4. paralleling Cable in —This Ethernet input connection
point is used when multiple generators are going to be
connected.
5. paralleling Cable out — This Ethernet output
connection point is used when multiple generators are
going to be connected.
6. BuS Hot indicator lamp — When lit, this indicator
lamp informs that the voltage bus is active (high
voltage). never connect or disconnect cables from
the camlok or auxiliary receptacles when this indicator
is on. The possibility exists of electrocution, shock or
even death if cables are connected or unplugged when
this indicator is lamp lit.
Sg1400C3 STudio generaTor • operaTion manual — rev. #0 (10/05/11) — page 25
Download from Www.Somanuals.com. All Manuals Search And Download.
CirCuit BrEakEr PanEL
2
Test
Instantaneous Trip Setting - Amps
Electronic Trip Unit
E
3
Push to Trip
A — 500
B — 600
C — 800
E — 1250
F — 1500
G — 2000
D
B
F
C
G
450 AMP
LONG — INST.
H
Status
D — 1000 H — 2500
A
Test
Instantaneous Trip Setting Amps
-
Electronic Trip Unit
Push to Trip
E
A
B
C
D
—
—
—
—
500
600
800
1000
E
F
G
H
—
—
—
—
1250
D
B
F
1500
2000
2500
C
G
450 AMP
LONG
—
INST.
H
Status
A
1
4
Figure 8. Main Breaker Panel
The definitions below describe the controls and functions
of the Main Breaker Panel (Figure 8).
NOTICE
1. CB2 Circuit Breaker —This breaker monitors, senses
the generator voltage bus. If breaker trips, signal is
sent to controller.
When setting the trip point on the electric trip unit, be
careful not to set the trip point too high. Setting the
trip point too high may cause the main breaker not
to trip. This condition could cause serious damage to
the equipment, and serious bodily harm even death to
operating personnel.
2. CB3 Circuit Breaker — This breaker monitors,
senses the voltage bus. If breaker trips, signal is sent
to controller.
3. main Circuit Breaker — This 600 amp breaker
protects the camlok receptacles (load) from overload.
Always be conservative when setting the trip point.The
trip setting for this generator is position B 600 amps.
4. electronicTrip unit —This unit protects the generator
from in-rush current (load spikes).
DO NOT adjust the trip point setting when the
equipment is in operation.
page 26 — Sg1400C3 STudio generaTor • operaTion manual — rev. #0 (10/05/11)
Download from Www.Somanuals.com. All Manuals Search And Download.
DiGitaL COntrOLLEr
1
2
4
5
3
11
14
13
12
15
6
10
9
8
7
Figure 9. Digital Controller
ConTrol BuTTonS
Refer to Figure 9 for location of controls and indicators.
1. STaTuS led — Indicates status of the controller.
Lights green when the controller is running.
11. STarT Button — Press button to go idle mode (about
an hour) then generator starts. A second press will
bypass idle mode and generator goes to full speed
immediately.
navigaTionS BuTTonS
2. arroW up Button — Press button to scroll up
through the status menus or programming prompts.
12. STop Button — Press button to cool the generator
for about 5 minutes then the generator will stop. A
second press will bypass cool down and will stop the
generator immediately.
3. arroW doWn Button — Press button to scroll down
through the status menus or programming prompts.
4. menu Button — Press button to jump to menu/sub-
menu page or escape from any dialog window.
NOTICE
STarT and STop buttons work in MAN (manual) or
SEM (semi-manual) mode only.
5. enTer Button — Press button to confirm a value or
open a value adjustment within setting dialogs.
13. FaulT reSeT Button — Press button to acknowledge
faults and alarms (active only in Alarm screen).
ConTeXT BuTTonS
6. mode Button — Press button to jump to the controller
mode window.
14. Horn reSeT Button — Press button to deactivate
the horn (audible alarm).
7. HiSTorY Button — Press button to jump to history
screen.
15. diSplaY — Shows menu, measurements, setpoints,
alarm list, history, and help/others screens.
8. alarm Button — Press button to jump to alarm list
NOTICE
9. gCB (generator Circuit Breaker) ConTrol
Button — Press button to close/open GCB.
For more detailed operating and programming
information on the digital controller, refer to the
InteliVision 5™ Controller User's Guide.
10. mCB ConTrol Button — Not functional in this
application.
Sg1400C3 STudio generaTor • operaTion manual — rev. #0 (10/05/11) — page 27
Download from Www.Somanuals.com. All Manuals Search And Download.
LOaD aPPLiCatiOn/GEnEratOr OutPut
Single pHaSe load
THree pHaSe load
Always be sure to check the nameplate on the generator
and equipment to insure the wattage, amperage, frequency,
and voltage requirements are satisfactorily supplied by the
generator for operating the equipment.
When calculating the power requirements for 3-phase
power use the following equation.
Generally, the wattage listed on the nameplate of the
equipment is its rated output. Equipment may require
130—150% more wattage than the rating on the nameplate,
as the wattage is influenced by the efficiency, power factor
and starting system of the equipment.
NOTICE
If 3Ø load (kVA) is not given on the equipment
nameplate, approximate 3Ø load may be determined
by multiplying voltage by amperage by 1.732.
.
NOTICE
NOTICE
If wattage is not given on the equipment’s name plate,
approximate wattage may be determined by multiplying
nameplate voltage by the nameplate amperage.
Motors and motor-driven equipment draw much greater
current for starting than during operation.
An inadequate size connecting cable which cannot carry
the required load can cause a voltage drop which can burn
out the appliance or tool and overheat the cable. Refer to
Table 8 to select the correct cable size.
WATTS = VOLTAGE x AMPERAGE
The power factor of this generator is 1.0.SeeTable 7 below
when connecting loads.
„ When connecting a resistance load such as an
incandescent lamp or electric heater, a capacity of up to
the generator’s rated output (kW) can be used.
Table 7. power Factor By load
Type of load
power Factor
Single-phase induction motors
0.4-0.75
„ When connecting a fluorescent or mercury lamp, a
capacity of up to the generator's rated output (kW)
multiplied by 0.6 can be used.
Electric heaters, incandescent lamps
Fluorescent lamps, mercury lamps
1.0
0.4-0.9
„ When connecting an electric drill or other power tools,
pay close attention to the required starting current
capacity.
Electronic devices, communication
equipment
1.0
0.8
Common power tools
When connecting ordinary power tools, a capacity of up to
the generator’s rated output (kW) multiplied by 0.8 can be
used.
Table 8. Cable Selection (60 Hz, Single phase operation)
load in Watts
maximum allowable Cable length
Current
in
amperes
danger
at 100
volts
at 200
volts
#10 Wire #12 Wire #14 Wire #16 Wire
Before connecting this generator to any building’s
electrical system, a licensed electrician must install
a transfer switch. Serious damage to the building’s
electrical system may occur without this transfer switch.
2.5
5
300
600
1000 ft.
500 ft.
350 ft.
250 ft.
150 ft.
125 ft.
600 ft.
300 ft.
200 ft.
150 ft.
100 ft.
75 ft.
375 ft.
200 ft.
125 ft.
100 ft.
65 ft.
250 ft.
125 ft.
100 ft.
600
1200
1800
2400
3600
4800
7.5
10
15
20
900
1200
1800
2400
50 ft.
CAUTION: Equipment damage can result from low voltage
page 28 — Sg1400C3 STudio generaTor • operaTion manual — rev. #0 (10/05/11)
Download from Www.Somanuals.com. All Manuals Search And Download.
GEnEratOr OutPutS
generaTor ouTpuT volTageS
generator amperage
A wide range of voltages are available to supply voltage for
many different applications.Voltages are selected by using
the voltage selector switch (Figure 10). To obtain some
of the voltages as listed in Table 9 (see below) will require
a fine adjustment using the voltage adjust toggle switch
located on the digital control panel.
Table 10 shows the maximum amps the generator can
provide. do noT exceed the maximum amps as listed.
Table 10. generator maximum amps
rated voltage
1Ø 240 Volt
3Ø 208 Volt
3Ø 480 Volt
line amps
538 amps
466 amps
202 amps
Total amps
1076 amps
1400 amps
606 amps
voltage Selector Switch
The voltage selector switch (Figure 10) is located on the
back side of the Saddle Box Assembly.It has been provided
for ease of voltage selection.
120/208
3
277/480
3
120/240
1
Figure 10. Voltage Selector Switch
.
CauTion
never change the position of the voltage selector
switch while the engine is running. alWaYS place
main circuit breaker in the oFF position before selecting
voltage and activate voltage change mode switch.
Table 9. voltages available
l1 l2 l3 output
Terminal lugs
voltage Selector Switch
3-phase 120/208v position
voltage Selector Switch
3-phase 480/277v position
208V
120V
220V
127V
240V
139V
416V
240V
440V
254V
480V
277V
3Ø line-line
1Ø line-neutral
voltage Selector Switch Single-phase 240/120v position
1Ø line-neutral/
line-line
120V
Line-Neutral
240V
Line-Line
N/A
N/A
N/A
N/A
NOTICE
Controller has over/under-voltage protection based on
208 V nominal/480 V nominal/240 V nominal voltage.
Sg1400C3 STudio generaTor • operaTion manual — rev. #0 (10/05/11) — page 29
Download from Www.Somanuals.com. All Manuals Search And Download.
inSPECtiOn/SEtuP
main CirCuiT BreaKer
Fuel CHeCK
danger
The generator is equipped with a 3-pole, 600-amp circuit
breaker to protect the camlok receptacles from overload.
Make sure that the main circuit breaker is in the oFF
position prior to starting the engine.
Fuel spillage on a hot engine can cause
a fire or explosion.If fuel spillage occurs,
wipe up the spilled fuel completely to
prevent fire hazards. never smoke
around or near the generator.
luBriCaTion oil
Fill the engine crankcase with lubricating oil through the
filler hole, but do noT overfill. Make sure the generator
is level and verify that the oil level is maintained between
the two notches (Figure 11) on the dipstick. See Table 11
for proper selection of engine oil.
refilling the Fuel System
CauTion
onlY properly trained personnel who have read
and understood this section should refill the fuel tank
system.
This generator has a fuel tank located in the sub base
assembly frame. alWaYS fill the fuel tank with clean fresh
#2 diesel fuel.do noT fill the fuel tank beyond its capacity.
Figure 11. Engine Oil Dipstick
When checking the engine oil, be sure to check if the oil is
clean. If the oil is not clean, drain the oil by removing the
oil drain plug, and refill with the specified amount of oil as
outlined in the Cummins engine owner’s manual. Oil
should be warm before draining.
Pay attention to the fuel tank capacity when replenishing
fuel. The fuel tank cap must be closed tightly after filling.
Handle fuel in a safe container. If the container does
not have a spout, use a funnel. Wipe up any spilled fuel
immediately.
Other types of motor oils may be substituted if they meet
the following requirements:
refueling procedure:
„ API Service Classification CC/SC
„ API Service Classification CC/SD
„ API Service Classification CC/SE
„ API Service Classification CC/SF
Warning
diesel fuel and its vapors are dangerous
to your health and the surrounding
environment. Avoid skin contact and/or
inhaling fumes.
Table 11. recommended motor oil
CauTion
alWaYS make sure generator is on firm level ground
before refueling to prevent spilling and maximize the
amount of fuel that can be pumped into the tank.
page 30 — Sg1400C3 STudio generaTor • operaTion manual — rev. #0 (10/05/11)
Download from Www.Somanuals.com. All Manuals Search And Download.
inSPECtiOn/SEtuP
1. Place the generator level with the ground.Failure to do
so will cause fuel to spill from the tank before reaching
full capacity (Figure 12).
1/2
E
F
DO NOT fill on
unlevel ground
!
!
Figure 14. Full Fuel Tank
=
Level Ground
Level Ground
CauTion
Figure 12. Only Fill on Level Ground
do noT overFill fuel system. Leave room for fuel
expansion. Fuel expands when heated (Figure 15).
NOTICE
onlY use #2 diesel fuel when refueling.
2. Remove fuel cap and fill tank (Figure 13).
Fuel EXPANDS
when heated
1/2
DIESEL
FUEL
E
F
Figure 13. Fueling the Generator
3. Monitor the fuel gauge while filling fuel tank.Stop filling
when the fuel gauge indicates full (Figure 14).do noT
wait for fuel to rise in filler neck.
Figure 15. Fuel Expansion
Sg1400C3 STudio generaTor • operaTion manual — rev. #0 (10/05/11) — page 31
Download from Www.Somanuals.com. All Manuals Search And Download.
inSPECtiOn/SEtuP
CoolanT (anTiFreeze/Summer CoolanT)
Cleaning THe radiaTor
Cummins recommends antifreeze/summer coolant, for use
in their engines, which can be purchased in concentrate (and
mixed with 50% demineralized water) or pre-diluted. See the
Cummins engine owner’s manual for further details.
The engine may overheat if the radiator fins become
overloaded with dust or debris. Periodically clean the
radiator fins with compressed air. Cleaning inside the
machine is dangerous, so clean only with the engine turned
off and the negative battery terminal disconnected.
Warning
air Cleaner
If adding coolant/antifreeze mix to the
radiator, do not remove the radiator cap
until the unit has completely cooled. The
possibility of hot coolant exists which can
cause severe burns.
Periodic cleaning/replacement is necessary. Inspect it in
accordance with the Cummins engine owner’s manual.
Fan BelT TenSion
A slack drive belt may contribute to overheating, or to
insufficient charging of the battery, adjust drive belt in
accordance with the Cummins engine owner’s manual.
Day-to-day addition of coolant is done from the recovery
tank.When adding coolant to the radiator, do noT remove
the radiator cap until the unit has completely cooled. See
Table 12 for engine, radiator, and recovery tank coolant
capacities.Make sure the coolant level in the recovery tank
is always between the “H” and the “L” markings.
drive BelT inSpeCTion
Inspect the drive belt for damage and wear. Horizontal
(across the belt) cracks are acceptable. See Figure 16
below. Vertical (direction of belt ribs) cracks that intersect
with horizontal cracks are not acceptable.
Table 12. Coolant Capacity
Engine and Radiator
Reserve Tank
7.8 gal (29.5 liters)
6 quarts (6.6 liters)
If the drive belt is frayed, punctured, or material is missing
do not use drive belt.
operaTion in Freezing WeaTHer
When operating in freezing weather, be certain the proper
amount of antifreeze (Table 13) has been added.
Table 13. anti-Freeze operatingTemperatures
Vol %
Anti-
Freeze
Freezing Point
Boiling Point
°C
°F
°C
°F
Figure 16. Drive Belt Inspection
50
-37
-34
108
226
CauTion
NOTICE
never place hands near the belts or fan
while the generator is running.
When the antifreeze is mixed with water, the antifreeze
mixing ratio must be less than 50%.
page 32 — Sg1400C3 STudio generaTor • operaTion manual — rev. #0 (10/05/11)
Download from Www.Somanuals.com. All Manuals Search And Download.
inSPECtiOn/SEtuP
When connecting the battery do the following:
BaTTerY
1. Place a small amount of battery terminal treatment
compound around both battery terminals. This will
ensure a good connection and will help prevent
corrosion around the battery terminals.
This unit is of negative ground.do noT connect in reverse.
Always maintain battery fluid level between the specified
marks. do noT over fill. Battery life will be shortened if
the fluid level is not properly maintained. Add only distilled
water when replenishment is necessary.
2. Connect the red cable to the positive terminal of the
battery and the black cable to the negative terminal
of the battery.
Check to see whether the battery cables are loose. Poor
contact may result in poor starting or malfunction. always
keep the terminals firmly tightened.Coat the terminals with
an approved battery terminal treatment compound.Replace
battery with only recommended type battery.
.
NOTICE
If the battery cable is connected incorrectly, electrical
damage to the generator will occur. Pay close attention
to the polarity when connecting the battery.
The battery is sufficiently charged if the specific gravity
of the battery fluid is 1.28 (at 68° F). If the specific gravity
should fall to 1.245 or lower, the battery is dead and needs
to be recharged or replaced.
CauTion
Before charging the battery with an external electric source,
be sure to disconnect the battery cables.
Inadequate battery connections may cause poor
starting of the generator, and create other malfunctions.
Battery Cable installation
alTernaTor
alWaYS make sure that the battery cables (Figure 17) are
properly connected to the battery terminals as shown below.
The polarity of the alternator is negative grounding type.
When an inverted circuit connection takes place, the circuit
will short instantaneously resulting in alternator failure.
CauTion
do noT put water directly on the alternator. Water in the
alternator can cause corrosion and damage.
alWaYS disconnect the negative terminal FirST and
reconnect negative terminal laST.
Wiring
Inspect the generator for bad, worn electrical wiring or
connections. If any wiring or connections are exposed
(insulation missing), replace wiring immediately.
piping and HoSe ConneCTion
Inspect all piping, oil hose, and fuel hose connections for
fatigue, wear and tightness. Tighten all hose clamps and
check hoses for leaks.
Figure 17. Battery Connections
If any hose (fuel or oil) lines are defective, replace them
immediately.
Sg1400C3 STudio generaTor • operaTion manual — rev. #0 (10/05/11) — page 33
Download from Www.Somanuals.com. All Manuals Search And Download.
StartuP
FUEL VALVES IN
PRIME MODE
BeFore STarTing
CauTion
The engine’s exhaust contains harmful emissions.
alWaYS have adequate ventilation when operating.
1. Place the Control Power switch (Figure 18) on the
digital control panel in the up position (ON).
ON (UP)
Figure 21. Fuel Valves (Prime Mode)
ON (UP)
Figure 18. Control Power Switch (ON)
2. Place the voltage selector switch (Figure 19) in the
desired voltage setting position. The corresponding
Voltage Status LED on the control panel will light to
indicate the selected voltage (Figure 20).
Figure 22. Fuel Priming Switch (ON)
4. After priming is complete, release the fuel priming
switch. Place the fuel valves in the run mode (Figure
23).
120/208
3
FUEL VALVES IN
277/480
3
120/240
1
RUN MODE
Figure 19. Voltage Selector Switch
120/208 3Ø Position
Figure 23. Fuel Valves (Run Mode)
5. Verify that all three circuit breakers (Figure 24)are in
the on position prior to starting the engine.
LIGHTS IF
SELECTED
ON
VERIFY CIRCUIT
BREAKERS ARE ON
Figure 20. Voltage Status LEDs
3. If it is necessary to prime engine before starting (such
as after changing fuel filter or running out of fuel), place
the fuel valves in the prime position (Figure 21). Place
the fuel priming switch (Figure 22) in the up position.
Test
Instantaneous Trip Setting Amps
-
Electronic Trip Unit
Push to Trip
E
A
B
C
D
—
—
—
—
500
600
800
1000
E
F
G
H
—
—
—
—
1250
D
B
F
1500
2000
2500
450 AMP
LONG
C
G
—
INST.
H
Status
A
Figure 24. Circuit Breakers (ON)
page 34 — Sg1400C3 STudio generaTor • operaTion manual — rev. #0 (10/05/11)
Download from Www.Somanuals.com. All Manuals Search And Download.
StartuP
6. If unit is to be used in parallel with another unit,
interconnect the units. Interconnect the output buses
with suitable power cables to carry full load capacity.
Special male-to-male Camlok cables will be needed.
For 480 V mode, it is recommended that one 4/0 cable
per phase, neutral and ground be used. For 208V
mode, use two 4/0 cables per phase and neutral and
one 4/0 cable for ground. Also connect the parallel
communication cables.
4. To bypass idle mode, press the STarT button again.
The generator should go to full speed.
NOTICE
If STarT button is not pressed again, the engine will
remain in idle mode for about an hour then will go to
full speed.
5. Verify that the no-load frequency reading on the
control panel frequency display is approximately 60
Hz (1800 rpm).
7. Connect the load to the receptacles on the Camlok/
Voltage Output Panel.When the camloks are inserted
into the outlet connector, rotate clockwise until they are
locked in place. Make sure the camloks are connected
securely.
6. Verify that the voltage reading on the control panel AC
voltmeter display matches the voltage selector switch
position that was selected prior to startup.
7. Press the GCB control button on the controller
(Figure 27) to close circuit breaker.
8. Press the MODE button (Figure 25) on the Digital
Controller Display and select manual mode (MAN)
with the arrow keys. Press Enter key when MAN is
highlighted on the screen.
Close GCB
MAN
PRESS GCB CONTROL BUTTON
PRESS MODE BUTTON
Figure 25. Mode Button (Manual)
STarTing (manual)
Figure 27. Generator Circuit Breaker (Closed)
8. Verify that the BUS HOT light on the Camlok/Voltage
Output Panel is on. Voltage is now available at the
receptacles.
1. Press the STarT button (Figure 26) on the controller
to start the engine.
BUS HOT
LIGHT
Figure 26. START Button
2. The engine will go to idle mode.
3. Listen for any abnormal noises. If any abnormalities
exist, shut down the engine and correct the problem.
Figure 28. Bus Hot Light
Sg1400C3 STudio generaTor • operaTion manual — rev. #0 (10/05/11) — page 35
Download from Www.Somanuals.com. All Manuals Search And Download.
StartuP
9. If paralleling to another unit and the bus was already
energized from another unit (BUS HOT light already
on), pressing to close GCB button once would initiate
a synchronizing mode. The light above the button will
begin flashing, bring the generator into phase and
automatically close the breaker. Once the breaker
closes, the light above the button would then become
solid and the generators would now be in parallel. As
load is applied, units will share the load proportionally.
1. Press the GCB control button on the controller
(Figure 30) to open circuit breaker.
Open GCB
CloSing THe enCloSure doorS
1. Close the enclosure doors once the generator has
started (Figure 29). Top vents stay open for proper
ventilation.
PRESS BUTTON
Figure 30. Generator Circuit Breaker (Open)
RAIN DOOR
INTAKE VENT
2. Let the engine cool by running it at full speed for 3-5
minutes with no load applied.
3. Press the STop button (Figure 31) on the controller.
The engine will go to idle mode.
Figure 31. STOP Button
Close
Doors
4. Press the STop button again to shut down the engine.
NOTICE
Figure 29. Engine Enclosure Doors
If STop button is not pressed again, the engine will
remain in idle mode for about an hour then will shut
down.
2. If access to the controls or other components is
necessary while the engine is running, make sure the
doors are not left open for an extended period of time.
5. Place the Control Power switch (Figure 32) on the
control panel to the OFF position.
3. To protect the unit from rain, the top intake vent can
be closed by opening the upper front vent door on the
generator enclosure. The front vent will automatically
close the upper roof intake vent. The upper exhaust
vent will remain open.
OFF (DOWN)
normal SHuTdoWn proCedure
Figure 32. Control Power Switch (OFF)
To shutdown the generator, use the following procedure:
emergenCY SHuTdoWn proCedure
Warning
1. Press the STop button twice (Figure 31) on the
controller to shut down the engine.
never stop the engine suddenly except in an
emergency.
2. Place the main circuit breaker (Figure 30) in the oFF
position.
page 36 — Sg1400C3 STudio generaTor • operaTion manual — rev. #0 (10/05/11)
Download from Www.Somanuals.com. All Manuals Search And Download.
PrOtECtivE DEviCES
After automatic shutdown, always inspect the generator
and eliminate any problems that might have caused the
shutdown before attempting to restart the generator.
proTeCTive deviCeS
Protection devices and emergency stop devices are
designed as standard components for protection of the
generator against trouble during operation. The LCD on
the Digital Controller will inform the user when a fault has
occurred.
When ready to restart, check and make sure that no
alarms are shown in the Alarm List on the Digital Controller.
Restart the generator as outlined in the Startup section of
this manual.
When a major fault is detected, such as low oil pressure,
high water temperature, and overspeed, the engine
automatically shuts down. Check the display for the fault
and correct the problem.
Refer to the InteliVision 5™ Controller User's Guide for
detailed information of faults and display information.
CauTion
For minor faults, the engine will continue working. Stop the
engine and remedy the cause of the problem. The Digital
Controller will display the cause of the fault.
To prevent damage to the equipment and severe bodily
harm, even death, please follow all lock-out safety
procedures when performing maintenance.
Before inspecting or troubleshooting the generator, press
the oFF button on the Digital Controller. Place the main
circuit breaker in the oFF position and allow sufficient time
for adequate cooling.
Sg1400C3 STudio generaTor • operaTion manual — rev. #0 (10/05/11) — page 37
Download from Www.Somanuals.com. All Manuals Search And Download.
MaintEnanCE
Use Table 14 as a general maintenance guideline when servicing your engine. For more detail engine maintenance
information, refer to the engine owner’s manual supplied with your engine.
Table 14. engine maintenance Schedule
inTerval
250 HourS
or
500 HourS
or
1000HourS 2000HourS 5000HourS
or
deSCripTion
operaTion
dailY3
or
1Year3
or
2YearS2,3
3 monTHS3 6 monTHS1,2,3
4YearS3
Air Intake Piping
Check
Check
Drain
X
X
X
X
X
X
Engine Lubricating Oil Level
Air Tank and Reservoirs
Crankcase and Breather Tube
Engine Coolant Level
Inspect
Check
Drain
Fuel -Water Separator
Air Cleaner Restriction
Check
X
X
Air Compressor
Mounting Hardware
Check
Charge-Air Cooler
Charge-Air Piping
Radiator Hoses
Air Intake Piping
Fan, Cooling
Check
Check
Check
Inspect
Check
X
X
X
X
X
Coolant Level
Check
Check
Check
Replace
Change
Check
Check
Check
Check
Drain
X
X
X
X
X
X
Drive Belts
Engine Coolant - Antifreeze
Fuel Filter (Spin-On Type)
Lubricating Oil and Filters
Radiator Pressure Cap
Cooling Fan Belt Tensioner
Fan Hub, Belt-Driven
Air Compressor Discharge Line
Cooling System
X
X
X
X
X
X
Vibration Damper, Rubber
Vibration Damper, Viscous
Overhead Set
Check
Check
Adjust
X
1. The lubricating oil and lubricating oil filter interval can be adjusted based on application, fuel consumption, gross vehicle
weight, and idle time.
2. Antifreeze check interval is every oil change or 500 hours or 6 months, whichever occurs first.The operator must use heavy-
duty, year-round antifreeze that meets the chemical composition of ASTM D6210.The antifreeze change interval is 2 years
or 2000 hours whichever occurs first. Antifreeze is essential for freeze, overheat, and corrosion protection.
3. Follow the manufacturer’s recommended maintenance procedures for the starter, alternator, generator, batteries, electrical
components, exhaust brake, charge air cooler, radiator, air compressor, air cleaner, refrigerant compressor, and fan clutch.
page 38 — Sg1400C3 STudio generaTor • operaTion manual — rev. #0 (10/05/11)
Download from Www.Somanuals.com. All Manuals Search And Download.
MaintEnanCE
general inSpeCTion
NOTICE
Prior to each use, the generator should be cleaned and
inspected for deficiencies. Check for loose, missing or
damaged nuts, bolts, and other fasteners. Also check for
fuel, oil, and coolant leaks. Use Table 14 as a general
maintenance guideline. For engine maintenance, refer to
the engine maintenance manual.
The air filter should be changed more frequently in
dusty operating conditions.
If the engine is operating in very dusty or dry grass
conditions, a clogged air cleaner will result.This can lead to
a loss of power, excessive carbon buildup in the combustion
chamber and high fuel consumption. Change air cleaner
more frequently if these conditions exist.
air FilTer
Every 250 hours:Remove air filter element (Figure 33) and
clean the filter element with low pressure compressed air.
Air pressure must not exceed 30 psi (207 kPa). The filter
can be cleaned and reused for up to six times if properly
cleaned.Replace air filter if rips or tears are detected while
cleaning.
Fuel addiTion
Add diesel fuel (the grade may vary according to season
and locations).
removing Water from the Fuel Tank
After prolonged use, water and other impurities accumulate
in the bottom of the tank.Occasionally inspect the fuel tank
for water contamination and drain the contents if necessary.
air Filter dust indicator
The air filter indicator (Figure 33) is attached to the air filter.
When the air filter element is clogged, air intake restriction
becomes greater and the air filter indicator signal shows
red. When indicator is red, replace filter immediately.After
changing the air filter, press the air filter indicator button
to reset.
During cold weather, the more empty volume inside the
tank, the easier it is for water to condense. This can be
reduced by keeping the tank full with diesel fuel.
Cleaning inside the Fuel Tank
If necessary, drain the fuel inside the fuel tank completely.
Using a spray washer (Figure 34) wash out any deposits
or debris that have accumulated inside the fuel tank.
Air Filter
Indicator
Air Filter
Element
Figure 33. Air Filter/Indicator
Figure 34. Fuel Tank Cleaning
Sg1400C3 STudio generaTor • operaTion manual — rev. #0 (10/05/11) — page 39
Download from Www.Somanuals.com. All Manuals Search And Download.
MaintEnanCE
FuelTanK inSpeCTion
FluSHing ouT radiaTor and replaCing
CoolanT
In addition to cleaning the fuel tank, the following
components should be inspected for wear:
Warning
Allow engine to cool before flushing out
radiator. Flushing the radiator while hot
could cause serious burns from water or
steam.
„ rubber Suspension — look for signs of wear or
deformity due to contact with oil. Replace the rubber
suspension if necessary.
„ Fuel Hoses — inspect nylon and rubber hoses for signs
of wear, deterioration, and hardening.
1. Remove radiator cap. Remove coolant drain plug
located on side of generator. Place coolant drain lever
in the open position to drain coolant.
„ FuelTank lining — inspect the fuel tank lining for signs
of excessive amounts of oil and other foreign matter.
replacing Fuel Filter
2. Flush the radiator by running clean tap water through
radiator until signs of rust and dirt are removed. Do
not clean radiator core with any objects, such as a
screwdriver.
„ Replace the fuel filter cartridge with a new one every
500 hours.
„ Loosen the drain plug at the lower top of the fuel filter.
Drain the fuel in the fuel body together with the mixed
water. do noT spill the fuel during disassembly.
3. Check hoses for softening and kinks. Check clamps
for signs of leakage.
4. Move lever to the closed position and reinstall coolant
drain plug.
„ Vent any air.
air removal
5. Replace with coolant as recommended by the engine
manufacturer.
If air enters the fuel injection system of a diesel engine,
starting becomes impossible. After running out of fuel, or
after disassembling the fuel system, bleed the system.
Refer to the Cummins engine manual for details.
6. Close radiator cap tightly.
generaTor STorage
For long term storage of the generator the following is
recommended:
CHeCK oil level
Check the crankcase oil level prior to each use, or when
the fuel tank is filled. Insufficient oil may cause severe
damage to the engine. The oil level must be between the
two notches on the dipstick.
1. Drain the fuel tank completely.Treat with a fuel stabilizer
if necessary.
2. Completely drain the oil from the crankcase and refill,
if necessary, with fresh oil.
replacing oil Filter
3. Clean the entire generator, inside and outside.
4. Disconnect the battery.
1. Remove the old oil filter.
2. Apply a film of oil to the gasket on the new oil filter.
3. Install the new oil filter.
5. Make sure engine coolant is at proper level.
6. Cover the generator and store in a clean, and dry place.
4. After the oil filter has been replaced, the engine oil will
drop slightly. Run the engine for a while and check for
leaks before adding more oil if needed.Clean excessive
oil from engine.
page 40 — Sg1400C3 STudio generaTor • operaTion manual — rev. #0 (10/05/11)
Download from Www.Somanuals.com. All Manuals Search And Download.
MaintEnanCE
The following trailer maintenance guidelines are intended
to assist the operator in preventive maintenance.
6. Replace the adjusting-hole cover.
7. Repeat the above procedure on all brakes.
8. Lower the trailer to the ground.
Trailer BraKeS
Properly functioning brake shoes and drums are essential
to ensure safety. The brakes should be inspected the first
200 miles of operation.This will allow the brake shoes and
drums to seat properly. After the first 200 mile interval,
inspect the brakes every 3,000 miles. If driving over rough
terrain, inspect the brakes more frequently.
Check the fluid level in the master cylinder reservoir at least
every three months. If you tow your trailer an average of
1,000 miles per month in a hot and dry environment, you
must check the brake fluid level once a month. The brake
fluid reservoir is located on the tongue of the trailer.Always
fill with clean, uncontaminated DOT 4 brake fluid.
HYdrauliC BraKeS
Figure 35 below displays the major hydraulic brake
components that will require inspection and maintenance.
Please inspect these components as required using steps
1 through 6 as referenced in the “Manually Adjusting The
Brakes” section on this page. See Hydraulic Brake
Troubleshooting table in maintenance section.
If your trailer has hydraulic brakes, they function the same
way the surge brakes do on your tow vehicle.The hydraulic
braking system must be inspected at least as often as the
brakes on the tow vehicle, but no less than once per year.
This inspection includes an assessment of the condition
and proper operation of the wheel cylinders, brake shoes,
brake drums and hubs.
manuallY adJuSTing THe BraKeS
Most axles are fitted with a brake mechanism that will adjust
the brakes during a hard stop. However, some braking
systems are not automatically adjusted by hard stopping.
These brakes require manual adjustment. The following
steps apply to adjust most manually adjustable brakes.
1. Jack up the trailer and secure it on adequate capacity
jackstands.
Figure 35. Hydraulic Brake Components
2. Be sure the wheel and brake drum rotate freely.
HYdrauliC BraKe aCTuaTor
3. Remove the adjusting-hole cover from the adjusting
slot on the bottom of the brake backing plate.
The hydraulic brake actuator (Figure 36) is the mechanism
that activates the trailer’s brake system. This actuator
changes fluid power into mechanical power.Therefore, the
fluid level must be checked frequently to assure that the
brakes function properly.
4. With a screwdriver or standard adjusting tool, rotate the
starwheel of the adjuster assembly to expand the brake
shoes. Adjust the brake shoes out until the pressure
of the linings against the drum makes the wheel very
difficult to turn. Note:Your trailer maybe equipped with
drop spindle axles.See axle manual for your axle type.
You will need a modified adjusting tool for adjusting
the brakes in these axles. With drop spindle axles, a
modified adjusting tool with about an 80 degree angle
should be used.
HYDRAULIC
BRAKE FLUID
RESERVOIR
5. Rotate the starwheel in the opposite direction until the
wheel turns freely with a slight drag.
Figure 36. Hydraulic Brake Actuator
Sg1400C3 STudio generaTor • operaTion manual — rev. #0 (10/05/11) — page 41
Download from Www.Somanuals.com. All Manuals Search And Download.
MaintEnanCE
Warning
Failure to maintain proper fluid level in the actuator
may result in loss of braking action which could cause
severe property damage, injury or death.
Periodically check the actuator mounting fasteners for
damage or loosening. Inspect the actuator for worn or
damaged parts. As you are towing your trailer, be aware
of any changes in braking quality. This could be an early
warning of brake or actuator malfunction and requires
immediate attention. Consult a certified brake specialist to
make necessary adjustment or repairs.
Figure 37. Adjustable Channel
Table 15. Hydraulic Brake Troubleshooting
WHeel BearingS
Symptom
possible Cause
Brake line broken or kinked?
Brake lining glazed?
Solution
No Brakes
Repair or replace.
Reburnish or replace.
Correct weight.
Wheel bearings (Figure 38) must be inspected and
lubricated once a year or 12,000 miles to insure safe
operation of your trailer.
Trailer overloaded?
Brake drums scored or
grooved?
Weak Brakes or
Brakes Pull to
One Side
Machine or replace.
Inflate all tires equally.
Match tires.
If trailer wheel bearings are immersed in water, they must
be replaced.
Tire pressure correct?
Tires unmatched on the
same axle?
danger
Brake components loose,
bent or broken?
If trailer wheels are under water for a long period of
time, wheel bearings may fail.If this is the case, service
wheel bearings immediately.
Replace components.
Locking Brakes
Noisy Brakes
Brake drums out-of-round?
System lubricated?
Replace.
Lubricate.
The possibility exists of the wheels falling off causing
equipment damage and severe bodily harm even death!
Brake components correct?
Replace and correct.
Brake lining thickness
incorrect or not adjusted
correctly?
Install new shoes and
linings.
Dragging
Brakes
Enough brake fluid or correct
fluid?
Replace rubber parts
fill with dot 4 fluid.
If the trailer has not been used for an extended amount
of time, have the bearings inspected and packed more
frequently, at least every six months and prior to use.
adJuSTaBle CHannel
Follow the steps below to disassemble the wheel hub and
service the wheel bearings. See Figure 38.
Your trailer may be equipped with an adjustable channel
(Figure 3) that allows the coupler to be raised or lowered
to a desired height.Periodically check the channel bolts for
damage or loosening.
BEARING
WHEEL
HUB
OIL
SEAL
COTTER
BEARING
PIN
CUP
BEARING
NOTICE
BEARING
CUP
When replacing channel mounting hardware (nuts,
bolts and washers), never substitute substandard
hardware.Pay close attention to bolt length and grade.
alWaYS use manufacturer's recommended parts
when replacing channel mounting hardware.
DUST
CAP
LUG
NUT
SPINDLE
WASHER
SPINDLE
NUT
Figure 38. Wheel Hub Components
page 42 — Sg1400C3 STudio generaTor • operaTion manual — rev. #0 (10/05/11)
Download from Www.Somanuals.com. All Manuals Search And Download.
MaintEnanCE
„ After removing the dust cap, cotter pin, spindle nut and
spindle washer, remove the hub to inspect the bearings
for wear and damage.
danger
Improper weld repair will lead to early failure of the
trailer structure and can cause serious injury or death.
„ Replace bearings that have flat spots on rollers, broken
roller cages, rust or pitting. Always replace bearings
and cups in sets. The inner and outer bearings are to
be replaced at the same time.
DO NOT repair cracked or broken welds unless you
have a certified welder perform the repair. If not, have
the welds repaired by your dealer.
„ Replace seals that have nicks, tears or wear.
Warning
„ Lubricate the bearings with a high quality EP-2
automotive wheel bearing grease.
If the trailer is involved in an accident, have it inspected
immediately by qualified personnel. In addition, the
trailer should be inspected annually for signs of wear
or deformations.
WHeel HuB adJuSTmenT
Every time the wheel hub is removed and the bearings are
reassembled, follow the steps below to check the wheel
bearings for free running and adjust.
leaF SuSpenSion
The leaf suspension springs and associated components
(Figure 39) should be visually inspected every 6,000 miles
for signs of excessive wear, elongation of bolt holes, and
loosening of fasteners. Replace all damaged parts
(suspension) immediately.
„ Turn the hub slowly, by hand, while tightening the spindle
nut until you can no longer turn the hub by hand.
„ Loosen the spindle nut just until you are able to turn it
(the spindle nut) by hand. Do not turn the hub while the
spindle nut is loose.
„ Install a new cotter pin through the spindle nut and axle.
„ Check the adjustments.Both the hub and the spindle nut
should be able to move freely (the spindle nut motion
will be limited by the cotter pin).
danger
never crawl under the trailer unless it is on firm
and level ground and resting on properly placed and
secured jackstands.
The possibility exists of the trailer falling thus causing
equipment damage and severe bodily harm even death!
Figure 39. Leaf Suspension Components
danger
danger
When performing trailer inspection and maintenance
activities, you must jack up the trailer using jacks and
jackstands.
Worn or broken suspension parts can cause loss of
control, damage to equipment and severe bodily injury,
even death!
When jacking and using jackstands, place them so
as to clear wiring, brake lines, and suspension parts
(i.e., springs, torsion bars). Place jacks and jackstands
inside of the perimeter strip on the supporting structure
to which the axles are attached.
Check suspension regularly.
Sg1400C3 STudio generaTor • operaTion manual — rev. #0 (10/05/11) — page 43
Download from Www.Somanuals.com. All Manuals Search And Download.
trOuBLEShOOtinG (GEnEratOr)
Troubleshooting (generator)
Symptom
possible problem
Solution
Check output voltage using a voltmeter.
Check wiring and repair.
AC Voltmeter defective?
Is wiring connection loose?
Is voltage regulator defective?
Defective Rotating Rectifier?
Defective Exciter Field?
Is engine speed correct?
Is wiring connections loose?
Defective AVR?
No Voltage Output
Replace if necessary.
Check and replace.
Check and replace.
Turn engine throttle lever to “High”.
Check wiring and repair.
Low Voltage Output
High Voltage Output
Replace if necessary.
Is wiring connections loose?
Defective AVR?
Check wiring and repair.
Replace if necessary.
Short Circuit in load?
Check load and repair.
Over current?
Confirm load requirements and reduce.
Check and replace.
Circuit Breaker Tripped
Defective circuit breaker?
Over current Relay actuated?
Confirm load requirement and replace.
page 44 — Sg1400C3 STudio generaTor • operaTion manual — rev. #0 (10/05/11)
Download from Www.Somanuals.com. All Manuals Search And Download.
trOuBLEShOOtinG (EnGinE)
Troubleshooting (Engine)
Symptom
Possible Problem
No Fuel reaching injection pump?
Defective fuel pump?
Solution
Add fuel. Check entire fuel system.
Replace fuel pump.
Fuel filter clogged?
Replace fuel filter and clean tank.
Replace or repair fuel line.
Faulty fuel supply line?
Check piston, cylinder and valves. Adjust or
repair per engine repair manual.
Compression too low?
Engine will not start or start is delayed,
although engine can be turned over.
Fuel pump not working correctly?
Oil pressure too low?
Repair or replace fuel pump.
Check engine oil pressure.
Comply with cold starting instructions and
proper oil viscosity.
Low starting temperature limit exceeded?
Defective battery?
Charge or replace battery.
Check carefully for loosened fuel line
coupling, loose cap nut, etc.
Air or water mixed in fuel system?
Refill engine crankcase with correct type of
oil for winter environment.
Engine oil too thick?
At low temperatures engine will not start.
Defective battery?
Fuel filter blocked?
Fuel supply blocked?
Defective fuel pump?
Fuel tank empty?
Replace battery.
Replace fuel filter.
Check the entire fuel system.
Replace fuel pump.
Add fuel.
Engine fires but stops soon as starter is
switched off.
Fuel filter blocked?
Defective fuel pump?
Replace fuel filter.
Replace fuel pump.
Engine stops by itself during normal
operation.
Mechanical oil pressure shutdown sensor
stops the engine due to low oil?
Add oil. Replace low oil shutdown sensor if
necessary.
Fuel tank empty?
Replace fuel filter.
Fuel filter clogged?
Replace fuel filter.
Fuel tank venting is inadequate?
Ensure that tank is adequately vented.
Check threaded pipe unions tape and tighten
unions a required.
Leaks at pipe unions?
Low engine power, output and speed.
Speed control lever does not remain in
selected position?
See engine manual for corrective action.
Engine oil level too full?
Correct engine oil level.
Use No. 2-D diesel fuel only. Check the fuel
injection pump element and delivery valve
assembly and replace as necessary.
Injection pump wear?
Sg1400C3 STudio generaTor • operaTion manual — rev. #0 (10/05/11) — page 45
Download from Www.Somanuals.com. All Manuals Search And Download.
trOuBLEShOOtinG (COntrOLLEr)
Troubleshooting (intelivision 5 Controller)
Symptom
possible problem
Solution
Wrong Display HW
SW and HW mismatch?
Correct firmware has to be programmed.
Invalidate configuration table
Error
Controller configuration has to be reprogrammed or
upgraded.
Configuration table is invalid?
Controller is not supported?
Unsupported controller Error
Controller upgrade necessary.
Unsupported cfg. table format
Error
Controller configuration table is not
supported?
InteliVision 5 firmware upgrade is necessary.
Mismatch parameters length
Error
Controller parameters mismatch?
Controller configuration upgrade is necessary.
Mismatch const values length
Error
Controller constants mismatch?
Controller values mismatch?
Controller configuration upgrade is necessary.
Controller configuration upgrade is necessary.
Mismatch values length Error
Mismatch val states length
Error
Controller values states mismatch? Controller configuration upgrade is necessary.
Controller is not connected or
Communication is lost or RS485 line A and B are
communication via RS485 is
swapped.
Controller was not detected
Error
interrupted?
Controller is detected; RS485
RS485 line is not terminated properly, environment
communication level is not defined
disturbance is present or RS485 line is too long.
correctly?
Communication Error
Unsupported controller firmware,
Upgrade controller firmware.
missing InteliVision 5 support?
Screen template missing Error
Screen template version Error Unsupported controller screen?
Corrupted display font?
InteliVision 5 firmware has to be updated.
Display firmware/font programming is necessary.
Font not valid Error
Font programming was not done
properly?
Display firmware/font programming is necessary.
Font format not supported Error Unsupported font?
InteliVision 5 font or firmware is necessary.
Firmware upgrade is necessary.
Bitmaps not valid Error
Unsupported format?
Bitmaps format not supported
Error
Unsupported bitmaps format?
Firmware upgrade is necessary.
Default lang. not supported
Error
Default/Defined language error/not
supported?
Language change or code page change is necessary.
page 46 — Sg1400C3 STudio generaTor • operaTion manual — rev. #0 (10/05/11)
Download from Www.Somanuals.com. All Manuals Search And Download.
traiLEr GuiDELinES
The following guidelines are intended to assist the operator
in the operation and handling of a trailer.
„ Shift your automatic transmission into a lower gear for
city driving.
Safety precautions should be followed at all times when
operating a trailer. Failure to read, understand and follow
the safety guidelines could result in injury to yourself and
others.Loss of control of the trailer or tow vehicle can result
in death or serious injury.
„ alWaYS use lower gears for climbing and descending
grades.
„ do noT ride the brakes while descending grades, they
may get so hot that they stop working. Then you will
potentially have a runaway tow vehicle and trailer.
Common CauSeS For loSS oF Trailer
„ To conserve fuel, don’t use full throttle to climb a hill.
Instead, build speed on the approach.
„ Driving too fast for the conditions (maximum speed when
towing a trailer is 55 mph).
„ Slow down for bumps in the road. Take your foot off the
brake when crossing the bump.
„ Overloading the trailer or loading the trailer unevenly.
„ Trailer improperly coupled to the hitch.
„ No braking on trailer.
„ do noT brake while in a curve unless absolutely
necessary. Instead, slow down before you enter the
curve and power through the curve.This way, the towing
vehicle remains in charge.
„ Not maintaining proper tire pressure.
„ Not keeping lug nuts tight.
„ do noT apply the brakes to correct extreme trailer
swaying. Continued pulling of the trailer, and even slight
acceleration, will provide a stabilizing force.
„ Not properly maintaining the trailer structure.
„ Ensure machine is towed level to tow vehicle.
TrailerToWing guidelineS
„ Anticipate the trailer “swaying.” Swaying is the trailer
reaction to the air pressure wave caused by passing
trucks and buses.Continued pulling of the trailer provides
a stabilizing force to correct swaying. DO NOT apply the
brakes to correct trailer swaying.
„ Recheck the load tiedowns to make sure the load will
not shift during towing.
„ Use lower gear when driving down steep or long grades.
Use the engine and transmission as a brake. Do not
ride the brakes, as they can overheat and become
ineffective.
„ Before towing, check coupling, safety chain, safety
brake, tires, wheels and lights.
„ Check the lug nuts or bolts for tightness.
„ Check coupler tightness after towing 50 miles.
„ Be aware of your trailer height, especially when
approaching roofed areas and around trees.
„ Use your mirrors to verify that you have room to change
lanes or pull into traffic.
„ Make regular stops, about once each hour. Confirm
that:
„ Use your turn signals well in advance. Allow plenty of
stopping space for your trailer and tow vehicle.
• Coupler is secure to the hitch and is locked.
• Electrical connectors are secure.
„ Allow plenty of stopping space for your trailer and tow
vehicle.
• There is appropriate slack in the safety chains.
„ do noT drive so fast that the trailer begins to sway
due to speed.
• There is appropriate slack in the breakaway switch
pullpin cable.
„ Allow plenty of room for passing. A rule of thumb is that
the passing distance with a trailer is 4 times the passing
distance without the trailer.
• Tires are not visibly low on pressure.
Sg1400C3 STudio generaTor • operaTion manual — rev. #0 (10/05/11) — page 47
Download from Www.Somanuals.com. All Manuals Search And Download.
traiLEr GuiDELinES
for the use of your trailer.Again, be sure your hitch and tow
vehicle are rated for the Gross Vehicle Weight Rating of
your trailer.
driving CondiTionS
When towing a trailer, you will have decreased acceleration,
increased stopping distance, and increased turning radius
(which means you must make wider turns to keep from
hitting curbs, vehicles, and anything else that is on the
inside corner). In addition, you will need a longer distance
to pass, due to slower acceleration and increased length.
Warning
Proper selection and condition of the coupler and hitch
are essential to safely towing your trailer. A loss of
coupling may result in death or serious injury.
„ Be alert for slippery conditions.You are more likely to be
affected by slippery road surfaces when driving a tow
vehicle with a trailer, than driving a tow vehicle without
a trailer.
• Be sure the hitch load rating is equal to or greater
than the load rating of the coupler.
• Be sure the hitch size matches the coupler size.
• Observe the hitch for wear, corrosion and cracks
before coupling. Replace worn, corroded or cracked
hitch components before coupling the trailer to the
tow vehicle.
„ Check rearview mirrors frequently to observe the trailer
and traffic.
„ never drive faster than what is safe.
• Be sure the hitch components are tight before
coupling the trailer to the tow vehicle.
Warning
Driving too fast for severe road conditions can result in
loss of control and cause death or serious injury.
Warning
An improperly coupled trailer can result in death or
serious injury.
Decrease your speed as road, weather, and lighting
conditions deteriorate.
do noT move the trailer until:
Always check for local trailer tow speed limits in your
area.
• The coupler is secured and locked to hitch.
• The safety chains are secured to the tow vehicle.
• The trailer jack(s) are fully retracted.
Warning
Do not transport people on the trailer.The transport of
people puts their lives at risk and may be illegal.
do noT tow the trailer on the road until:
• Tires and wheels are checked.
• The trailer brakes are checked.
Coupling ToTHeToW veHiCle
• The breakaway switch is connected to the tow
vehicle.
Follow all of the safety precautions and instructions in
this manual to ensure safety of persons, equipment, and
satisfactory life of the trailer. Always use an adequate tow
vehicle and hitch. If the vehicle or hitch is not properly
selected and matched to the Gross Vehicle Weight Rating
(GVWR) of your trailer, you can cause an accident that
could lead to death or serious injury.
• The load is secured to the trailer.
• The trailer lights are connected and checked.
Warning
Use of a hitch with a load rating less than the load rating
of the trailer can result in loss of control and may lead
to death or serious injury.
If you already have a tow vehicle, know your vehicle tow
rating and make certain the trailer’s rated capacity is less
than or equal to the tow vehicle’s rated towing capacity. If
you already have (or plan to buy) a trailer, make certain
that the tow rating of the tow vehicle is equal to or greater
than that of the trailer.
Use of a tow vehicle with a towing capacity less than
the load rating of the trailer can result in loss of control,
and may lead to death or serious injury.
Be sure your hitch and tow vehicle are rated for the
Gross Vehicle Weight Rating of your trailer.
The trailer VIN tag contains the critical safetyinformation
page 48 — Sg1400C3 STudio generaTor • operaTion manual — rev. #0 (10/05/11)
Download from Www.Somanuals.com. All Manuals Search And Download.
traiLEr GuiDELinES
Drive slowly at first, 5 mph or so, and turn the wheel to
get the feel of how the tow vehicle and trailer combination
responds. Next, make some right and left hand turns.
Watch in your side mirrors to see how the trailer follows
the tow vehicle. Turning with a trailer attached requires
more room.
inoperaBle BraKeS, ligHTS or mirrorS
Be sure that the brakes and all of the lights on your trailer
are functioning properly before towing your trailer. Check
the trailer taillights by turning on your tow vehicle headlights.
Check the trailer brake lights by having someone step on
the tow vehicle brake pedal while you look at trailer lights.
Do the same thing to check the turn signal lights.SeeTrailer
Wiring Diagram section in this manual.
Stop the rig a few times from speeds no greater than
10 mph. If your trailer is equipped with brakes, try using
different combinations of trailer brake and tow vehicle brake.
Note the effect that the trailer brakes have when they are
the only brakes used. When properly adjusted, the trailer
brakes will come on just before the tow vehicle brakes.
Standard mirrors usually do not provide adequate visibility
for viewing traffic to the sides and rear of a towed trailer.
You must provide mirrors that allow you to safely observe
approaching traffic.
It will take practice to learn how to back up a tow vehicle
with a trailer attached.Take it slow. Before backing up, get
out of the tow vehicle and look behind the trailer to make
sure that there are no obstacles.
Warning
Improper electrical connection between the tow vehicle
and the trailer will result in inoperable lights and can
lead to collision.
Some drivers place their hands at the bottom of the steering
wheel, and while the tow vehicle is in reverse, “think” of the
hands as being on the top of the wheel. When the hands
move to the right (counterclockwise, as you would do to
turn the tow vehicle to the left when moving forward), the
rear of the trailer moves to the right. Conversely, rotating
the steering wheel clockwise with your hands at the bottom
of the wheel will move the rear of the trailer to the left while
backing up.
Before each tow, check that the tail lights, brake lights
and turn signals work.
TrailerToWing TipS
Driving a vehicle with a trailer in tow is vastly different
from driving the same vehicle without a trailer in tow.
Acceleration, maneuverability and braking are all diminished
with a trailer in tow.
If you are towing a bumper hitch rig, be careful not to allow
the trailer to turn too much because it will hit the rear of the
tow vehicle.To straighten the rig, either pull forward or turn
the steering wheel in the opposite direction.
It takes longer to get up to speed, you need more room to
turn and pass, and more distance to stop when towing a
trailer.You will need to spend time adjusting to the different
feel and maneuverability of the tow vehicle with a loaded
trailer.
Trailer vinTag
Because of the significant differences in all aspects of
maneuverability when towing a trailer, the hazards and risks
of injury are also much greater than when driving without
a trailer.You are responsible for keeping your vehicle and
trailer in control, and for all the damage that is caused if
you lose control of your vehicle and trailer.
Figure A below is a sample of the Vehicle Identification
Number (VIN)Tag which is typically located on the left front
of the trailer. See Figure B for location.
As you did when learning to drive an automobile, find
an open area with little or no traffic for your first practice
trailering.Of course, before you start towing the trailer, you
must follow all of the instructions for inspection, testing,
loading and coupling. Also, before you start towing, adjust
the mirrors so you can see the trailer as well as the area
to the rear of it.
Figure A. Vehicle VIN Tag
Sg1400C3 STudio generaTor • operaTion manual — rev. #0 (10/05/11) — page 49
Download from Www.Somanuals.com. All Manuals Search And Download.
traiLEr GuiDELinES
To determine the “empty” or “net” weight of your trailer,
weigh it on an axle scale. To find the weight of the trailer
using an axle scale, you must know the axle weights of
your tow vehicle without the trailer coupled. Some of the
trailer weight will be transferred from the trailer to the tow
vehicle axles, and an axle scale weighs all axles, including
the tow vehicle axles.
VI
N
T
A
G
ToW veHiCle
VIN TAG
The towing hitch attached to your tow vehicle must have a
capacity equal to or greater than the load rating of the trailer
you intend to tow.The hitch capacity must also be matched
to the tow vehicle capacity.Your vehicle dealer can provide
and install the proper hitch on your tow vehicle.
Figure B. VIN Tag Location
SuSpenSion SYSTem
The trailer VIN Tag contains the following critical safety
information for the use of your trailer.
Sway bars, shock absorbers, heavy duty springs, heavy
duty tires and other suspension components may be
required to sufficiently tow the trailer and pump.
gaWr:The maximum gross weight that an axle cansupport.
It is the lowest of axle, wheel, or tire rating.
Usually, the tire or wheel rating is lower than the axle rating,
and determines GAWR.
BraKe ConTroller
For trailers equipped with electric brakes, the electric brake
controller is part of the tow vehicle and is essential in the
operation of the electric brakes on the trailer. The brake
controller is not the same as the safety breakaway brake
system that may be equipped on the trailer.
gvWr: The maximum allowable gross weight of the trailer
and its contents. The gross weight of the trailer includes
the weight of the trailer and all of the items within it. GVWR
is sometimes referred to as GTWR (Gross Trailer Weight
Rating), or MGTW (Maximum GrossTrailerWeight).GVWR,
GTWR and MGTW are all the same rating.
Side vieW mirrorS
The sum total of the GAWR for all trailer axles may be less
than the GVWR for the trailer, because some of the trailer
load is to be carried by the tow vehicle, rather than by the
trailer axle(s).The total weight of the cargo and trailer must
not exceed the GVWR, and the load on an axle must not
exceed its GAWR.
The size of the trailer that is being towed and your state
law regulations determine the size of the mirrors.However,
some states prohibit extended mirrors on a tow vehicle,
except while a trailer is actually being towed. In this
situation, detachable extended mirrors are necessary.
Check with your dealer or the appropriate state agency
for mirror requirements.
pSiC: The tire pressure (psi) measured when cold.
HeavY duTY FlaSHer
vin: The Vehicle Identification Number.
A Heavy Duty Flasher is an electrical component that may
be required when your trailer turn signal lights are attached
to the tow vehicle flasher circuit.
empTY WeigHT: Some information that comes with the
trailer (such as the Manufacturer’s Statement of Origin)
is not a reliable source for “empty” or “net” weight. The
shipping documents list average or standard weights and
your trailer may be equipped with options.
eleCTriCal ConneCTor
An Electrical Connector connects the light and brake
systems on the trailer to the light and brake controls on
the towing vehicle.
page 50 — Sg1400C3 STudio generaTor • operaTion manual — rev. #0 (10/05/11)
Download from Www.Somanuals.com. All Manuals Search And Download.
traiLEr GuiDELinES
emergenCYFlareSandTrianglereFleCTorS
Ball HiTCH Coupler
It is wise to carry these warning devices even if you are
not towing a trailer.It is particularly important to have these
when towing a trailer because the hazard flashers of your
towing vehicle will not operate for as long a period of time
when the battery is running both the trailer lights and tow
vehicle lights.
A ball hitch coupler (Figure C) connects to a ball that is
located on or under the rear bumper of tow vehicle. This
system of coupling a trailer to a tow vehicle is sometimes
referred to as “bumper pull.”
A ball hitch trailer may be fitted with a tongue jack that can
raise and lower the coupler.The tongue jack is mounted to
the A-frame (front or tongue) part of the trailer. By rotating
the jack handle clockwise, the jack will extend and raise
the tongue of the trailer.
SaFeTY CHainS
If the coupler connection comes loose, the safety chains
can keep the trailer attached to the tow vehicle. With
properly rigged safety chains, it is possible to keep the
tongue of the trailer from digging into the road pavement,
even if the coupler-to-hitch connection comes apart.
Trailer ligHTing and BraKing ConneCTor
A device that connects electrical power from the tow vehicle
to the trailer. Electricity is used to turn on brake lights,
running lights, and turn signals as required. In addition, if
your trailer has a separate braking system, the electrical
connector will also supply power to the brakes from the
tow vehicle.
Figure C. Ball Hitch Coupler
Before each tow, coat the ball with a thin layer of automotive
bearing grease to reduce wear and ensure proper operation.
Check the locking device that secures the coupler to the
ball for proper operation.
BreaKaWaY SYSTem
If the trailer coupler connection comes loose, the breakaway
system can actuate emergency hydraulic brakes depending
on the type of actuator on the trailer.The breakaway cable
must be rigged to the tow vehicle with appropriate slack
that will activate the system if the coupler connection
comes loose.
If you see or feel evidence of wear, such as flat spots,
deformations, pitting or corrosion, on the ball or coupler,
immediately have your dealer inspect them to determine
the proper action to prevent possible failure of the ball and
coupler system. All bent or broken coupler parts must be
replaced before towing the trailer.
JaCKSTand
A device on the trailer that is used to raise and lower the
coupler.The jack is sometimes called the “landing gear” or
the “tongue jack”.
The coupler handle lever must be able to rotate freely and
automatically snap into the latched position. Oil the pivot
points, sliding surfaces, and spring ends with SAE 30W
motor oil.Keep the ball socket and latch mechanism clean.
Dirt or contamination can prevent proper operation of the
latching mechanism.
CouplerTYpeS
Two types of coupler used wit the trailer are discussed
below.
The load rating of the coupler and the necessary ball size
are listed on the trailer tongue.You must provide a hitch and
ball for your tow vehicle where the load rating of the hitch
and ball is equal to or greater than that of your trailer.
„ Ball Hitch Coupler
„ Pintel Eye Coupler
Also, the ball size must be the same as the coupler size. If
the hitch ball is too small, too large, is underrated, is loose
Sg1400C3 STudio generaTor • operaTion manual — rev. #0 (10/05/11) — page 51
Download from Www.Somanuals.com. All Manuals Search And Download.
traiLEr GuiDELinES
or is worn, the trailer can come loose from the tow vehicle
and may cause death or serious injury.
the trailer tongue. Wood or concrete blocks may also
be used.
THE TOW VEHICLE, HITCH AND BALL MUST HAVE A
RATED TOWING CAPACITY EQUAL TO OR GREATER
THAN THE TRAILER gross vehicle Weight rating
(gvWr). IT IS ESSENTIAL THAT THE HITCH BALL BE
OF THE SAME SIZE AS THE COUPLER.
Coupling theTrailer to theTowvehicle (Ball Coupler)
„ Lubricate the hitch ball and the inside of the coupler with
a thin layer of automotive bearing grease.
„ Slowly back up the tow vehicle so that the hitch ball is
near or aligned under the coupler.
The ball size and load rating (capacity) are marked on the
ball. Hitch capacity is marked on the hitch.
„ Using the jackstand at the front of trailer (tongue), turn
the jackstand crank handle to raise the trailer. If the ball
coupler does not line up with the hitch ball, adjust the
position of the tow vehicle.
Warning
Coupler-to-hitch mismatch can result in uncoupling,
leading to death or serious injury.
„ Open the coupler locking mechanism.Ball couplers have
a locking mechanism with an internal moving piece and
an outside handle. In the open position, the coupler is
able to drop fully onto the hitch ball.
Be sure the LOAD RATING of the hitch ball is equal or
greater than the load rating of the coupler.
Be sure the SIZE of the hitch ball matches the size of
the ball coupler.
„ Lower the trailer (Figure D) until the coupler fully engages
the hitch ball.
2-INCH
Warning
TRAILER
COUPLER
TOW
A worn, cracked or corroded hitch ball can fail while
towing and may result in death or serious injury.
VEHICLE
Before coupling trailer, inspect the hitch ball for wear,
corrosion and cracks.
2-INCH
BALL
Replace worn or damaged hitch ball.
Figure D. Ball Hitch Coupling Mechanism
Warning
„ Engage the coupler locking mechanism. In the engaged
position, the locking mechanism securely holds the
coupler to the hitch ball.
A loose hitchball nut can result in uncoupling, leading
to death or serious injury.
Be sure the hitch ball is tight to the hitch before coupling
the trailer.
„ Insert a pin or lock through the hole in the locking
mechanism.
„ Rock the ball to make sure it is tightened to the hitch,
and visually check that the hitch ball nut is solid against
the lock washer and hitch frame.
„ Be sure the coupler is all the way on the hitch ball and
the locking mechanism is engaged. A properly engaged
locking mechanism will allow the coupler to raise the rear
of the tow vehicle. Using the trailer jackstand, verify that
you can raise the rear of the tow vehicle by 1 inch after
the coupler is locked to the hitch.
„ Wipe the inside and outside of the coupler. Clean and
visually inspect it for cracks and deformations. Feel the
inside of the coupler for worn spots and pits.
„ Be sure the coupler is secured tightly to the tongue of the
trailer. All coupler fasteners must be visibly solid against
the trailer frame.
„ Lower the trailer so that its entire tongue weight is held
by the hitch.
„ Raise the jackstand to a height where it will not interfere
with the road.
„ The bottom surface of the coupler must be above the top
of the hitch ball. Use the tongue jackstand to support
page 52 — Sg1400C3 STudio generaTor • operaTion manual — rev. #0 (10/05/11)
Download from Www.Somanuals.com. All Manuals Search And Download.
traiLEr GuiDELinES
Breakaway Brake System
NOTICE
If the coupler or hitch fails, a properly connected and
working breakaway brake system (Figure F) will apply the
hydraulic brakes on the trailer. The safety chains will keep
the tow vehicle attached and as the brakes are applied at
the trailer’s axles, the trailer/tow vehicle combination will
come to a controlled stop.
Overloading can damage the tongue jack. do noT
use the tongue jack to raise the tow vehicle more than
one inch.
If the coupler cannot be secured to the hitch ball, do not
tow the trailer. Call your dealer for assistance. Lower the
trailer so that its entire tongue weight is held by the hitch and
continue retracting the jack to its fully retracted position.
Breakaway Lever
Connect Cable to
Tow Vehicle
attaching Safety Chain
Visually inspect the safety chains and hooks for wear or
damage. Replace worn or damaged safety chains and
hooks before towing.
Attach the safety chains so that they:
• Cross underneath the coupler. See Figure E.
TOW
Hydraulic Actuator
Figure F. Breakaway Brake System
VEHICLE
Breakaway Cable Surge Brake System
The breakaway brake system includes a brake cable
connected to the tow vehicle on one end and to the
emergency brake lever located on the hydraulic actuator
on the other end.
TRAILER
TONGUE
IMPORTANT!
SAFETY CHAIN
CROSS BOTH
MASTER LINK
SAFETY CHAINS
Warning
Figure E. Attaching Safety Chain (Ball Hitch)
• An ineffective breakaway brake system can result in
a runaway trailer, leading to death or serious injury,
if the coupler or ball hitch fails.
• Loop around a frame member of the tow vehicle or holes
provided in the hitch system (DO NOT attach them to
an interchangeable part of the hitch assembly).
• Connect the breakaway cable to the tow vehicle and
NOT to the hitch, ball or support.
• Have enough slack to permit tight turns, but not be
close to the road surface, so if the trailer uncouples, the
safety chains can hold the tongue up above the road
• Before towing the trailer, test the function of the
breakaway brake system. If the breakaway brake
system is not working, DO NOT tow the trailer. Have
it serviced or repaired.
.
Warning
Improper rigging of the safety chains can result in
loss of control of the trailer and tow vehicle, leading
to death or serious injury, if the trailer uncouples from
the tow vehicle.
NOTICE
DO NOT tow the trailer with the breakaway brake
system ON because the brakes will overheat which
can result in permanent brake failure.
• Fasten chains to frame of tow vehicle.DO NOT fasten
chains to any part of the hitch unless the hitch has
holes or loops specifically for that purpose.
NOTICE
• Cross chains underneath hitch and coupler with
enough slack to permit turning and to hold tongue
up, if the trailer comes loose.
Replace the breakaway brake battery (if equipped) at
intervals specified by manufacturer.
Sg1400C3 STudio generaTor • operaTion manual — rev. #0 (10/05/11) — page 53
Download from Www.Somanuals.com. All Manuals Search And Download.
traiLEr GuiDELinES
ConnectingTrailer lights
pinTle HiTCH Coupler
Connect the trailer lights to the tow vehicle’s electrical
system using the electric connectors at the front of the
trailer (tongue). Refer to the wiring diagram shown in the
trailer wiring diagram section of this manual.Before towing
the trailer check for the following:
A pintle eye coupler (Figure G) connects to a pintle-hook
hitch that is located on or under the rear bumper of the tow
vehicle.This system of coupling a trailer to a tow vehicle is
sometimes referred to as a “lunette eye, tow ring or G.I.
hitch.”
„ Running lights (turn on tow vehicle headlights).
„ Brake Lights (step on tow vehicle brake pedal).
„ Backup Lights (place tow vehicle gear shift in reverse).
„ Turn Signals (activate tow vehicle directional signal
lever).
Warning
Improper electrical connection between the tow vehicle
and the trailer will result in inoperable lights and electric
brakes, and can lead to collision.
Figure G. Pintle Hitch Coupler
A pintle hitch trailer may be fitted with a tongue jackstand
that can raise and lower the coupler. The tongue jack is
mounted to the A-frame (front or tongue) part of the trailer.
By rotating the jack handle clockwise, the jack will extend
and raise the tongue of the trailer.
Before each tow:
• Check that the taillights, brake lights and turn signals
work.
• Check that the electric brakes work by operating the
brake controller inside the tow vehicle.
The load rating of the coupler and the necessary pintle
hitch size are listed on the trailer tongue.You must provide
a pintle hitch and pintle coupler for your tow vehicle, where
the load rating of the pintle hitch and pintle coupler is equal
to or greater than that of your trailer.
uncoupling the Ball Hitch
Follow these steps to uncouple ball hitch from tow
vehicle:
Also, the pintle hitch size must be the same as the pintle
coupler size. If the hitch is too small, too large, underrated,
loose or worn, the trailer can come loose from the tow
vehicle, and may cause death or serious injury.
„ Block trailer tires to prevent the trailer from rolling, before
jacking the trailer up.
„ Disconnect the electrical connector.
pintle Coupler and pintle Hook
„ Disconnect the breakaway brake switch cable. Promptly
replace the pullpin in the switchbox.
Before each tow, check the locking device that secures the
coupler to the pintle hook assembly.
„ Before extending jackstand, make certain the ground
surface below the jackstand foot will support the tongue
load.
The pintle hook lever must be able to operate freely and
automatically snap into place into the latched position.
Lightly oil the pivot points and sliding surfaces with SAE30W
motor oil to prevent rust and help ensure proper operation
of the latching mechanism.
„ Rotate the jackstand handle (or crank) clockwise. This
will slowly extend the jack and transfer the weight of the
trailer tongue to the jack.
If you see or feel evidence of wear, such as flat spots,
deformations, pitting or corrosion, on the pintle hook or
coupler, immediately have your dealer inspect them to
determine the proper action to prevent possible failure of
page 54 — Sg1400C3 STudio generaTor • operaTion manual — rev. #0 (10/05/11)
Download from Www.Somanuals.com. All Manuals Search And Download.
traiLEr GuiDELinES
the ball andcoupler system.All bent or broken coupler parts
must be replaced before towing the trailer.
Warning
A defective pintle hitch not properly fastened can result
in uncoupling, leading to death or serious injury.
THE TOW VEHICLE, PINTLE HITCH AND PINTLE
COUPLER MUST HAVE A RATED TOWING CAPACITY
EQUAL TO OR GREATER THAN THE TRAILER gross
vehicle Weight rating (gvWr).
Be sure the pintle hook is securly tighten to the tow
vehicle before coupling the trailer.
CouplingTrailer to Tow vehicle (pintle Coupler)
IT IS ESSENTIAL THAT THE PINTLE HITCH BE OF THE
SAME SIZE AS THE PINTLE COUPLER.
„ Slowly back up the tow vehicle so that the pintle
hitch hook is near or aligned under the pintle eye ring
coupler.
The coupler size and load rating (capacity) are marked on
the coupler. Hitch capacity is marked on the hitch.
„ Using the jackstand at the front of trailer (tongue), turn
the jackstand crank handle to raise the trailer.If the pintle
eye coupler does not line up with the pintle hitch hook,
adjust the position of the tow vehicle.
Warning
Coupler-to-hitch mismatch can result in uncoupling,
leading to death or serious injury.
Be sure the LOAD RATING of the pintle hitch hook is
equal or greater than the load rating of the pintle eye
coupler.
„ OPEN the pintle hook locking mechanism (Figure H).
Place the hook inside the eye coupler.CLOSE the pintle
hook mechanism.
TRAILER
Be sure the SIZE of the pintle hitch hook matches the
size of the pintle eye coupler.
TONGUE
PINTLE
HOOK
TOW
VEHICLE
Warning
A worn, cracked or corroded pintle hitch hook can
fail while towing, and may result in death or serious
injury.
SAFETY CH
MASTER L
PINTLE
RING “EYE”
Before coupling trailer, inspect the pintle hitch hook for
wear, corrosion and cracks.
SAFETY
CHAIN
IMPORTANT!
Replace worn or damaged pintle hitch hook.
CROSS BOTH
Figure H. Attaching Safety Chain (Pintle Hitch)
„ Rock the pintle eye coupler to make sure it is secured
tightly to the hitch.
„ Insert a pin or lock through the hole in the locking
mechanism.
„ Wipe the inside and outside of the pintle coupler. Clean
and inspect it visually for cracks and deformations. Feel
the inside of the coupler for worn spots and pits.
„ Be sure the pintle hook is inserted completely through
the eye ring and the locking mechanism is engaged.
A properly engaged locking mechanism will allow the
coupler to raise the rear of the tow vehicle. Using the
trailer jack, test to see that you can raise the rear of the
tow vehicle by1-inch after the coupler is locked to the
hitch.
„ Be sure the coupler is secured tightly to the tongue of the
trailer. All coupler fasteners must be visibly solid against
the trailer frame.
„ Raise the bottom surface of the coupler to be above the
top of the pintle hitch hook. Use the tongue jackstand
to support the trailer tongue. Wood or concrete blocks
may also be used.
„ Lower the trailer so that its entire tongue weight is held
by the hitch.
„ Raise the jackstand to a height where it will not interfere
with the road.
Sg1400C3 STudio generaTor • operaTion manual — rev. #0 (10/05/11) — page 55
Download from Www.Somanuals.com. All Manuals Search And Download.
traiLEr GuiDELinES
Lug nuts are also prone to loosen after first being
assembled. When driving a new trailer (or after wheels
have been remounted), check to make sure they are tight
after the first 10, 25 and 50 miles of driving and before
each tow thereafter.
Tire SaFeTY
unsafe Tires, lug nuts or Wheels
Trailer tires and wheels are more likely to fail than car tires
and wheels because they carry a heavier load. Therefore,
it is essential to inspect the trailer tires before each tow.
Failure to perform this check can result in a wheel parting
from the trailer and a crash, leading to death or serious
injury.
If a tire has a bald spot, bulge, cuts, is showing any cords,
or is cracked, replace the tire before towing. If a tire has
uneven tread wear, take the trailer to a dealer service
center for diagnosis.
Warning
Lug nuts are prone to loosen after initial installation,
which can lead to death or serious injury.
Uneven tread wear can be caused by tire imbalance, axle
misalignment or incorrect inflation.
Check lug nuts for tightness on a new trailer or when
wheel(s) have been remounted after the first 10, 25
and 50 miles of driving.
Tires with too little tread will not provide adequate tracking
on wet roadways and can result in loss of control, leading
to death or serious injury.
Warning
Improper tire pressure causes an unstable trailer and
can result in a tire blowout and loss of control. Therefore,
before each tow you must also check the tire pressure.Tire
pressure must be checked when tires are cold.
Improper lug nut torque can cause a wheel parting from
the trailer, leading to death or serious injury.
Be sure lug nuts are tight before each tow.
Allow 3 hours cool-down after driving as much as 1 mile at
40 mph before checking tire pressure. Trailer tires will be
inflated to higher pressures than passenger vehicle tires.
Warning
Improper tire pressure can result in a blowout and loss
of control, which can lead to death or serious injury.
Since trailer wheels and lug nuts (or bolts) are subjected
to greater side loads than automobile wheels, they are
more prone to loosen. Before each tow, check to make
sure they are tight.
Be sure tires are inflated to pressure indicated on side
wall before towing trailer.
The proper tightness (torque) for lug nuts is listed in the
lug nut tightening section of this manual. Use a torque
wrench to tighten the lug nuts. If you do not have a torque
wrench, use a lug wrench (from your tow vehicle) and
tighten the nuts as much as you can. Then have a service
garage or trailer dealer tighten the lug nuts to the proper
torque.
determining load limit of Trailer
Determining the load limits of a trailer includes more than
understanding the load limits of the tires alone. On all
trailers there is a Federal certification/VIN label that is
located on the forward half of the left (road) side of the unit.
This certification/VIN label will indicate the trailer’s Gross
Vehicle Weight Rating (GVWR). This is the most weight
the fully loaded trailer can weigh. It will also provide the
Gross Axle Weight Rating (GAWR). This is the most a the
axle can weigh.
Warning
Metal creep between the wheel rim and lug nuts will
cause rim to loosen and could result in a wheel coming
off, leading to death or serious injury.
Tighten lug nuts before each tow.
page 56 — Sg1400C3 STudio generaTor • operaTion manual — rev. #0 (10/05/11)
Download from Www.Somanuals.com. All Manuals Search And Download.
traiLEr GuiDELinES
There is a vehicle placard (Figure I) located in the same
location as the certification label described above. This
placard provides tire and loading information. In addition,
this placard will show a statement regarding maximum
cargo capacity.
determining load limit of Tow vehicle
Step 1.
Locate the statement, “The combined weight of occupants
and cargo should never exceed XXX lbs.,”on your vehicle’s
placard.
TIRE AND LOADING INFORMATION
Step 2.
The weight of cargo should never exceed XXX kg. Or XXX lbs.
Determine the combined weight of the driver and
passengers who will be riding in your vehicle.
TIRE
SIZE
COLD TIRE PRESSURE
SEE OWNER’S
MANUAL FOR
ADDITIONAL
INFORMATION
FRONT
REAR
SPARE
Step 3.
Subtract the combined weight of the driver and passengers
from XXX kilograms or XXX pounds.
Figure I. Trailer Tire Placard
If additional work items (hoses, tools, clamps etc.) are
going to be added to the trailer, be sure they are distributed
evenly to prevent overloading front to back and side to side.
Heavy items should be placed low and as close to the axle
positions as reasonable.Too many items on one side may
overload a tire.
Step 4.
The resulting figure equals the available amount of cargo
and luggage capacity. For example, if the “XXX” amount
equals 1400 lbs. and there will be five 150 lb. passengers
in your vehicle, the amount of available cargo and luggage
capacity is 650 lbs. (1400-750 (5 x 150) = 650 lbs.).
Excessive loads and/or underinflation cause tire overloading
and, as a result, abnormal tire flexing occurs.This situation
can generate an excessive amount of heat within the tire.
Excessive heat may lead to tire failure.It is the air pressure
that enables a tire to support the load, so proper inflation
is critical. The proper air pressure may be found on the
certification/VIN label and/or on the Tire and Loading
Information placard. This value should never exceed the
maximum cold inflation pressure stamped on the tire.
Step 5.
Determine the combined weight of luggage and cargo
being loaded on the vehicle. That weight may not safely
exceed the available cargo and luggage capacity calculated
in Step 4.
If your vehicle will be towing a trailer, load from your trailer
will be transferred to your vehicle.Consult the tow vehicle’s
manual to determine how this weight transfer reduces the
available cargo and luggage capacity of your vehicle.
Perform the following steps to determine the load limit of
your trailer.
Studies of tire safety show that maintaining proper tire
pressure, observing tire and vehicle load limits (not carrying
more weight in your vehicle than your tires or vehicle can
safely handle), avoiding road hazards and inspecting tires
for cuts, slashes and other irregularities are the most
important things you can do to avoid tire failure, such as
tread separation or blowout and flat tires. These actions,
along with other care and maintenance activities, can
also:
Step 1.
Locate the statement, “The weight of cargo should never
exceed XXX kg or XXX lbs.,” on your vehicle’s Tire and
Loading Information placard (Figure I). This value equals
the available amount of equipment load capacity.
Step 2.
Determine the weight of the equipment being loaded
on the tow vehicle. That weight may not safely exceed
the available equipment load capacity. The trailer’s Tire
Information Placard is attached adjacent to or near the
trailer’sVIN (Certification) label at the left front of the trailer
(See Figure I).
„ Improve vehicle handling.
„ Help protect you and others from avoidable breakdowns
and accidents.
„ Improve fuel economy.
„ Increase the tire life.
Sg1400C3 STudio generaTor • operaTion manual — rev. #0 (10/05/11) — page 57
Download from Www.Somanuals.com. All Manuals Search And Download.
traiLEr GuiDELinES
Use the information contained in this section to make tire
safety a regular part of your vehicle maintenance routine.
Recognize that the time you spend is minimal compared
with the inconvenience and safety consequences of a flat
tire or other tire failure.
m+S: The “M+S” or “M/S” indicates that the tire has
some mud and snow capability. Most radial tires have
these markings; hence, they have some mud and snow
capability.
Speed rating: The speed rating denotes the speed at
which a tire is designed to be driven for extended periods
of time.The ratings range from 99 miles per hour (mph) to
186 mph.These ratings are listed inTable A.Note:You may
not find this information on all tires because it is not required
by law.
Tire FundamenTalS
Federallawrequirestiremanufacturerstoplacestandardized
information on the sidewall of all tires (Figure J). This
information identifies and describes the fundamental
characteristics of the tire and also provides a tire
identification number for safety standard certification and
in case of a recall.
Table a. Speed rating
letter rating
Speed rating
99 mph
Q
R
S
T
106 mph
112 mph
118 mph
U
H
V
W
Y
124 mph
130 mph
149 mph
168* mph
186* mph
Figure J. Standard Tire Sidewall Information
u.S. doTTire identification number:This begins with the
letters “DOT” and indicates that the tire meets all federal
standards. The next two numbers or letters are the plant
code where it was manufactured, and the last four numbers
represent the week and year the tire was built.For example,
the numbers 3197 means the 31st week of 1997.The other
numbers are marketing codes used at the manufacturer’s
discretion. This information is used to contact consumers
if a tire defect requires a recall.
p: The “P” indicates the tire is for passenger vehicles.
next number: This three-digit number gives the width in
millimeters of the tire from sidewall edge to sidewall edge.
In general, the larger the number, the wider the tire.
next number:This two-digit number, known as the aspect
ratio, gives the tire’s ratio of height to width. Numbers of
70 or lower indicate a short sidewall for improved steering
response and better overall handling on dry pavement.
Tire ply Composition and materials used:The number of
plies indicates the number of layers of rubber-coated fabric
in the tire. In general, the greater the number of plies, the
more weight a tire can support. Tire manufacturers also
must indicate the materials in the tire, which include steel,
nylon, polyester, and others.
p:The “R” stands for radial. Radial ply construction of tires
has been the industry standard for the past 20 years.
next number: This two-digit number is the wheel or rim
diameter in inches. If you change your wheel size, you
will have to purchase new tires to match the new wheel
diameter.
maximum load rating: This number indicates the
maximum load in kilograms and pounds that can be carried
by the tire.
next number: This two- or three-digit number is the tire’s
load index. It is a measurement of how much weight each
tire can support. You may find this information in your
owner’s manual. If not, contact a local tire dealer. Note:
You may not find this information on all tires because it is
not required by law.
maximum permissible inflation pressure: This number
is the greatest amount of air pressure that should ever be
put in the tire under normal driving conditions.
page 58 — Sg1400C3 STudio generaTor • operaTion manual — rev. #0 (10/05/11)
Download from Www.Somanuals.com. All Manuals Search And Download.
traiLEr GuiDELinES
load range: This information identifies the tire’s load-
carrying capabilities and its inflation limits.
uniform Tire Quality grading Standards (uTQgS)
Treadwear number: This number indicates the tire’s
wear rate. The higher the treadwear number is, the longer
it should take for the tread to wear down. For example, a
tire graded 400 should last twice as long as a tire graded
200.
Tire Safety Tips
„ Slow down if you have to go over a pothole or other
object in the road.
„ DO NOT run over curbs or other foreign objects in the
roadway, and try not to strike the curb when parking.
Traction letter: This letter indicates a tire’s ability to stop
on wet pavement. A higher graded tire should allow you
to stop your car on wet roads in a shorter distance than a
tire with a lower grade. Traction is graded from highest to
lowest as “AA”,”A”, “B”, and “C”.
„ Check tire inflation pressure weekly during use to insure
the maximum tire life and tread wear.
„ DO NOT bleed air from tires when they are hot.
Temperature letter: This letter indicates a tire’s
resistance to heat. The temperature grade is for a tire that
is inflated properly and not overloaded. Excessive speed,
underinflation or excessive loading, either separately or
in combination, can cause heat build-up and possible tire
failure. From highest to lowest, a tire’s resistance to heat
is graded as “A”, “B”, or “C”.
„ Inspect tires for uneven wear patterns on the tread,
cracks, foreign objects, or other signs of wear or
trauma.
„ Remove bits of glass and foreign objects wedged in
the tread.
„ Make sure your tire valves have valve caps.
Refer to Figure K for additional tire information for light
trucks.
„ alWaYS check tire pressure on tow vehicle and trailer
before towing. Check tire pressure at least once a
month.
„ do noT overload tow vehicle.Check the tire information
and loading placard for safe allowable tire loading
conditions.
Tire repair
The proper repair of a punctured tire requires a plug for the
hole and a patch for the area inside the tire that surrounds
the puncture hole. Punctures through the tread can be
repaired if they are not too large, but punctures to the
sidewall should not be repaired. Tires must be removed
from the rim to be properly inspected before being plugged
and patched.
Figure K. UTQGS Tire Information
Tires for light trucks have other markings besides those
found on the sidewalls of passenger tires.
lT: The “LT” indicates the tire is for light trucks or trailers.
replacing Worn or damaged Tires
ST: An “ST” is an indication the tire is for trailer use only.
Replace the tire before towing the trailer if the tire treads
have less than 1/16 inch depth or the telltale bands are
visible.Check inflation pressure weekly during use to insure
the maximum tire life and tread wear. A bubble, cut or bulge
in a side wall can result in a tire blowout. Inspect both side
walls of each tire for any bubble, cut or bulge; and replace
a damaged tire before towing the trailer.
max. load dual kg (lbs) at kPa (psi) Cold:This information
indicates the maximum load and tire pressure when the tire
is used as a dual, that is, when four tires are put on each
rear axle (a total of six or more tires on the vehicle).
max.load Single kg (lbs) at kPa (psi) Cold:This information
indicates the maximum load and tire pressure when the tire
is used as a single.
Sg1400C3 STudio generaTor • operaTion manual — rev. #0 (10/05/11) — page 59
Download from Www.Somanuals.com. All Manuals Search And Download.
traiLEr GuiDELinES
Table B below will help pinpoint the causes and solutions
of tire wear problems.
NOTICE
never use an pneumatic air gun to tighten wheel
lug nuts.
Table B. Tire Wear Troubleshooting
Cause
Wear pattern
Solution
Over-tightening lug nuts will result in breaking the studs
or permanently deforming the mounting stud holes in
the wheels.
Adjust pressure to particular
load per tire manufacturer.
Center Wear Over inflation.
Edge Wear Under inflation.
Adjust pressure to particular
load per tire manufacturer.
Warning
Make sure load does not
exceed axle rating.
Align wheels.
Loss of camber
Side Wear
Lug nuts are prone to loosen after initial installation,
which can lead to death or serious injury. Check all
wheel lug nuts periodically.
or overloading.
Toe Wear
Cupping
Incorrect toe-in.
Out-of-balance.
Align wheels.
lug nut Torque requirements
Check bearing adjustment
and balance tires.
It is extremely important to apply and maintain proper wheel
mounting torque on the trailer. Be sure to use only the
fasteners matched to the cone angle of the wheel. Proper
procedure for attachment of the wheels is as follows:
Wheel lockup and Avoid sudden stops when
tire skidding. possible and adjust brakes.
Flat Spots
Warning
1. Start all wheel lug nuts by hand.
ALWAYS wear safety glasses when
removing or installing force fitted parts.do
noT attempt to repair or modify a wheel.
DO NOT install an inner-tube to correct a
leak through through the rim. If the rim is
2. Torque all lug nuts in sequence. See Figure L. DO
NOT torque the wheel lug nuts all the way down.
Tighten each lug nut in 3 separate passes as defined
by Table C.
cracked, the air pressure in the inner tube may cause
pieces of the rim to explode (break off) with great force
and cause serious eye or bodily injury.
3. Check to see if the lug nuts are tight after the first 10,
25 and 50 miles of driving and before each tow
thereafter
Wheel rims
If the trailer has been struck, or impacted, on or near the
wheels, or if the trailer has struck a curb, inspect the rims for
damage (i.e.being out of round);and replace any damaged
wheel. Inspect the wheels for damage every year, even if
no obvious impact has occurred.
Wheels, Bearings and lug nuts
A loose, worn or damaged wheel bearing is the most
common cause of brakes that grab.
To check wheel bearings, jack trailer and check wheels
for side-to-side looseness. If the wheels are loose, or spin
with a wobble, the bearings must be serviced or replaced.
Check inflation pressure weekly during use to insure the
maximum tire life and tread wear. Most trailer axles are
built with sealed bearings that are not serviceable. Sealed
bearings must be replaced as complete units.
Figure L. Wheel Lug Nuts Tightening Sequence
page 60 — Sg1400C3 STudio generaTor • operaTion manual — rev. #0 (10/05/11)
Download from Www.Somanuals.com. All Manuals Search And Download.
traiLEr GuiDELinES
Replace any broken or burned-out lamps as necessary.
Check the wire harness for cuts, fraying or other damage.
If it needs replacing, contact your dealer.
Table C. Tire Torque requirements
First pass
FT-lBS
Second pass
FT-lBS
Third pass
FT-lBS
Wheel Size
12"
13"
14"
15"
16"
20-25
20-25
20-25
20-25
20-25
35-40
35-40
50-60
50-60
50-60
50-65
50-65
Warning
Improper operating taillights, stoplights and turn signals
can cause collisions.
90-120
90-120
90-120
Check all lights before each tow.
lights and Signals
Before each tow, check the trailer taillights, stoplights, turn
signals and any clearance lights for proper operation.
Figure M. Trailer to Tow Vehicle Wiring Diagram
Sg1400C3 STudio generaTor • operaTion manual — rev. #0 (10/05/11) — page 61
Download from Www.Somanuals.com. All Manuals Search And Download.
OPEratiOn ManuaL
HERE’S HOW TO GET HELP
PLEASE HAVE THE MODEL AND SERIAL
NUMBER ON-HAND WHEN CALLING
United StateS
Multiquip Corporate Office
MQ Parts Department
18910 Wilmington Ave.
Carson, CA 90746
Contact: [email protected]
Tel. (800) 421-1244
Fax (800) 537-3927
800-427-1244
310-537-3700
Fax: 800-672-7877
Fax: 310-637-3284
Service Department
Warranty Department
800-421-1244
310-537-3700
Fax: 310-537-4259
Fax: 310-943-2238
800-421-1244
310-537-3700
Fax: 310-943-2249
Technical Assistance
800-478-1244
mexico
United Kingdom
MQ Cipsa
Multiquip (UK) Limited Head Office
Carr. Fed. Mexico-Puebla KM 126.5
Momoxpan, Cholula, Puebla 72760 Mexico
Contact: [email protected]
Tel: (52) 222-225-9900
Unit 2, Northpoint Industrial Estate, Tel: 0161 339 2223
Fax: (52) 222-285-0420 Globe Lane,
Dukinfield, Cheshire SK16 4UJ
Contact: [email protected]
Fax: 0161 339 3226
Canada
Multiquip
4110 Industriel Boul.
Laval, Quebec, Canada H7L 6V3
Contact: [email protected]
Tel: (450) 625-2244
Tel: (877) 963-4411
Fax: (450) 625-8664
© COPYRIGHT 2011, MULTIQUIP INC.
Multiquip Inc, the MQ logo and the MQ Power logo are registered trademarks of Multiquip Inc. and may not be used, reproduced, or altered without written permission. All other
trademarks are the property of their respective owners and used with permission.
This manual MUsT accompany the equipment at all times.This manual is considered a permanent part of the equipment and should remain with the unit if resold.
The information and specifications included in this publication were in effect at the time of approval for printing. Illustrations, descriptions, references and technical data contained in
this manual are for guidance only and may not be considered as binding. Multiquip Inc. reserves the right to discontinue or change specifications, design or the information published
in this publication at any time without notice and without incurring any obligations.
Your Local Dealer is:
Download from Www.Somanuals.com. All Manuals Search And Download.
|