OperatiOn and parts Manual
series
MOdel MtX70HF
taMping raMMer
(HOnda gX100uKrB5 gasOline engine)
Revision #0 (03/08/12)
To find the latest revision of this
publication, visit our website at:
THIS MANUAL MUST ACCOMPANY THE EQUIPMENT AT ALL TIMES.
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nOtes
MTX70HF RaMMeR • opeRaTion and paRTs Manual — Rev. #0 (03/08/12) — page 3
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taBle OF COntents
Honda gX100uKrB5 engine
MtX70HF rammer
Proposition 65 Warning ........................................... 2
Parts Ordering Procedures...................................... 5
Safety Information ................................................ 6-9
Specifications ........................................................ 10
General Information............................................... 11
Components .......................................................... 12
Basic Engine.......................................................... 13
Inspection .............................................................. 14
Operation.......................................................... 15-16
Maintenance.......................................................... 17
Troubleshooting ................................................ 18-20
Explanation Of Code In Remarks Column............. 22
Suggested Spare Parts ......................................... 23
Cylinder Barrel Assy.......................................... 38-39
Crankcase Cover Assy....................................... 4041
Crankshaft Assy................................................ 42-43
Piston/Conn. Rod Assy..................................... 44-45
Camshaft Assy.................................................. 46-47
Carburetor Assy............................................... 52-53
Air Cleaner Assy............................................... 54-55
Muffler Assy...................................................... 56-57
Flywheel Ignition Assy....................................... 58-59
Control Assy...................................................... 60-61
Labels Assy....................................................... 62-63
Terms And Conditions Of Sale — Parts ................ 64
Component drawings
Nameplates And Decals................................... 24-25
Crankcase And Engine Assy............................ 26-29
Guide Cylinder Assy......................................... 30-31
Foot Assy.......................................................... 32-33
Fuel Tank And Handle Assy.............................. 34-35
Combination Lever Assy................................... 36-37
NOTICE
Specifications and part numbers are subject to change
without notice.
page 4 — MTX70HF RaMMeR • opeRaTion and paRTs Manual — Rev. #0 (03/08/12)
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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.
I View Parts Diagrams
I Order Parts
I 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:
Ì
dealer account number
Ì
specify preferred Method of shipment:
Ì
Ì
Ì
Ì
Ì
dealer name and address
ꢀ UPS/Fed Ex
ꢀ DHL
ꢀ Truck
I
I
Priority One
Ground
shipping address (if different than billing address)
Return Fax number
I Next Day
Second/Third Day
applicable Model number
I
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!
MTX70HF RaMMeR • opeRaTion and paRTs Manual — Rev. #0 (03/08/12) — page 5
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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 — MTX70HF RaMMeR • opeRaTion and paRTs Manual — Rev. #0 (03/08/12)
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saFety inFOrMatiOn
„ 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.
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.
RaMMeR saFeTy
dangeR
„ neveRoperatetheequipmentinanexplosive
atmosphereornearcombustiblematerials.An
explosion or fire could result causing severe
bodily harm or even death.
„ 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.
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.
„ alWays check the equipment for loosened threads or
bolts before starting.
„ do noT use this machine on ground that is harder than
the machine can handle, or for driving pilings or tamping
rock beds. Furthermore, use of the machine on sloping
ground, such as the side of an embankment, may make
the machine unstable and can cause an accident. It can
also result in premature machine wear due to uneven
loads on the machine.
„ do noT use the equipment for any purpose other than
its intended purposes or applications.
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.
Use the machine with confidence for tamping earth and
sand, soil, gravel, and asphalt.do noT use the machine
for other types of jobs.
„ Manufacturer does not assume responsibility for any
accident due to equipment modifications. Unauthorized
equipment modification will void all warranties.
CauTion
„ neveR lubricate components or attempt service on a
running machine.
„ neveR use accessories or attachments that are not
recommended by Multiquip for this equipment. Damage
to the equipment and/or injury to user may result.
NOTICE
„ alWays keep the machine in proper running condition.
„ alWays know the location of the nearest
fire extinguisher.
„ Fix damage to machine and replace any broken parts
immediately.
„ alWays know the location of the nearest
first aid kit.
„ 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.
MTX70HF RaMMeR • opeRaTion and paRTs Manual — Rev. #0 (03/08/12) — page 7
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saFety inFOrMatiOn
engine saFeTy
Fuel saFeTy
dangeR
dangeR
„ The engine fuel exhaust gases contain poisonous carbon
monoxide. This gas is colorless and odorless, and can
cause death if inhaled.
„ DO NOT add fuel to equipment if it is placed inside truck
bed with plastic liner. Possibility exists of explosion or
fire due to static electricity.
„ The engine of this equipment
requiresanadequatefreeflow
of cooling air.neveR operate
thisequipmentinanyenclosed
ornarrowareawherefreeflow
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.
WaRning
„ do noT place hands or fingers inside engine
compartment when engine is running.
„ neveR operate the engine with heat shields or
guards removed.
„ do noT start the engine near spilled fuel or combustible
fluids. Fuel is extremely flammable and its vapors can
cause an explosion if ignited.
„ 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 rammer.
„ alWays refuel in a well-ventilated area, away from
sparks and open flames.
„ alWays use extreme caution when working with
flammable liquids.
CauTion
„ neveR touch the hot exhaust manifold,
muffler or cylinder.Allow these parts to cool
before servicing equipment.
„ do noT fill the fuel tank while the engine is running
or hot.
„ do noT overfill tank, since spilled fuel could ignite if it
comes into contact with hot engine parts or sparks from
the ignition system.
NOTICE
„ 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.
„ Store fuel in appropriate containers, in well-ventilated
areas and away from sparks and flames.
„ 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.
„ neveR use fuel as a cleaning agent.
„ 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.
page 8 — MTX70HF RaMMeR • opeRaTion and paRTs Manual — Rev. #0 (03/08/12)
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saFety inFOrMatiOn
TRanspoRTing saFeTy
CauTion
„ NEVER allow any person or animal to stand underneath
the equipment while lifting.
NOTICE
„ Before lifting, make sure that the equipment parts (hook
and vibration insulator) are not damaged and screws are
not loose or missing.
„ Always make sure crane or lifting device has been
properly secured to the lifting bail (hook) of the
equipment.
„ alWays shutdown engine before transporting.
„ neveR lift the equipment while the engine is running.
„ Tighten fuel tank cap securely and close fuel cock to
prevent fuel from spilling.
„ Use adequate lifting cable (wire or rope) of sufficient
strength.
„ Use one point suspension hook and lift straight
upwards.
„ do noT lift machine to unnecessary heights.
„ alWays tie down equipment during transport by
securing the equipment with rope.
„ Never allow any person or animal to stand underneath the
equipment while lifting.
enviRonMenTal saFeTy
NOTICE
„ Dispose of hazardous waste properly.
Examples of potentially hazardous waste
are used motor oil, fuel and fuel filters.
„ 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.
MTX70HF RaMMeR • opeRaTion and paRTs Manual — Rev. #0 (03/08/12) — page 9
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speCiFiCatiOns
Table 1. Rammer specifications
40.04 in. (1017 mm)
Overall Height
Overall Width
13.78 in. (350 mm)
28.1 in. (713 mm)
13.4 x 11.2 in. (340 x 285 mm)
2.1 qt. (2 liters)
0.86 qt. (0.82 liter)
10.7 - 11.5
Over Length
Shoe Size (W x L)
Fuel Tank Capacity
Lubrication Oil Capacity
No. of Impacts Per Second
Impact Force
2,855 lbf (12.7 kN)
2 - 3.2 in. (50 - 80 mm)
163.13 lbs. (74 kg)
104 dB
Impact Plate Stroke
Operating Weight
Measured Sound Power Level
Guaranteed Sound Power Level
Max. Sound Pressure Level
107 dB
94 dB
Table 2. engine specifications
Model
Type
Honda GX100UKRB5 Engine
Air-Cooled 4 Stroke, Overhead camshaft,
single cylinder gasoline engine
Piston Displacement
Max. Output
6.0 cu.in. (98 cc)
3.0 hp/3,600 rpm (2.2 KW)
3,800 - 4,100 rpm
Max. Governed Speed, No Load
Cooling System
Air-Cooled
Engine Oil Capacity
Fuel
0.3 qt. (0.28 liters)
Unleaded gasoline
Automobile Oil; Class SE or higher
Recoil Starter
Lubricant for Engine
Starting System
Spark Plug Type
NGK CR5HSB
page 10 — MTX70HF RaMMeR • opeRaTion and paRTs Manual — Rev. #0 (03/08/12)
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general inFOrMatiOn
deFiniTion oF TaMping RaMMeR
CauTion
The Multiquip MTX70HF tamping rammer is a powerful
compacting tool capable of applying a tremendous force
in consecutive impacts to a soil surface. Its applications
include soil compacting for road, embankments and
reservoirs as well as backfilling for gas pipelines, water
pipelines and cable installation work.
Before starting operation check the lifting
handle to:
1. Make sure that there is no damage on the bolts.
2. Make sure that there is no crack or breakage on
handle.
The impact force of the MTX70HF levels and uniformly
compacts voids between soil particles to increase dry
density.
3. Make sure that there is no fissure on the surface.
If there is any abnormality or damage, replace
with new one.
Circular motion is converted to create impact force.
The MTX70HF tamping rammer develops a powerful
compacting force at the foot of the rammer. To maintain
optimum performance, proper operation and service are
essential.
For operation:
This handle is to be used to lift up the shoe part of
the machine with the body laid down on the ground
or truck bed.
ConsTRuCTion oF TaMping RaMMeR
1. Use proper lifting techniques to avoid back injury.
This handle is for manual lifting only.
The MTX70HF is equipped with an air cooled, four- cycle
gasoline engine. Transmission of the power takes place
by increasing the engine speed to engage the centrifugal
clutch.
2. Do not use this handle as a rammer lift point. Use
the lifting point on the top of the machine.
3. Do not move the rammer with the lifting handle
and the front rollers more than 16 feet (5 meters).
RaMMeR geaRboX and spRing CylindeR
The MTX70HF uses an oil bath lubrication system. Always
check the oil level through the oil level sight glass at the
rear of the tamper foot.
ConTRols
Before starting the MTX70HF Tamping Rammer identify
and understand the function of the controls.
MTX70HF RaMMeR • opeRaTion and paRTs Manual — Rev. #0 (03/08/12) — page 11
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COMpOnents
3
2
4
10
5
1
9
6
11
12
7
8
13
Figure 1. MTX70HF Rammer
Figure 1 shows the location of the controls and components
for the MTX70HF Tamping Rammer.The functions of each
control is described below:
8. Foot — Laminated wood with tempered steel plate for
superior shock absorption.
9. FuelTank — Holds the fuel for the unit (up to 2.1quarts).
1. Combination (Throttle) lever — Used to adjust
engine speed (rpm). Move lever forward (SLOW) to
reduce engine speed, move lever back toward operator
(FAST) to increase speed.Always operate the rammer
at full speed (rpm).
10. Muffler — reduces the noise of the engine when
running.
11. engine — this unit uses a Honda GX100UKRB5
gasoline engine.
12. oil gauge (sight glass) — Indicates the level of oil in
the oil bath reservoir.
2. Handle —To operate rammer, GRIP handle assembly
firmly on both sides.
13. drain valve — Open this valve to remove oil from the
bellows.
3. Fuel Tank Cap — Remove this cap to add unleaded
gasoline to the fuel tank. Make sure cap is tightened
securely. DO NOT over fill.
WaRning
4. Hook — Used to lift rammer for transporting.
Adding fuel to the tank should be
accomplished only when the engine is
stopped and has had an opportunity to
cool down. In the event of a fuel spill, DO
NOT attempt to start the engine until the
fuel residue has been completely wiped up, and the
area surrounding the engine is dry.
5. air Cleaner Cover — Protects the air cleaner which
prevents dirt and other debris from entering the engine.
6. Roller — Allows rammer to be moved around easily
by rolling the unit.
7. bellows — Reservoir for oil bath.
page 12 — MTX70HF RaMMeR • opeRaTion and paRTs Manual — Rev. #0 (03/08/12)
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BasiC engine
Figure 2. Honda GX100 Engine
4. Muffler — Used to reduce noise and emissions.
The engine (Figure 2) must be checked for proper lubri-
cation and filled with fuel prior to operation. Refer to the
engine manufacturer's manual for detailed operation and
service information.
5. dipstick/oil Filler Cap — Remove this cap to
determine if the engine oil is low. Add oil through this
filler port as recommended in Table 3.
1. Choke lever — Normally used in starting the engine
in cold weather conditions. In cold weather, turn
the choke lever to the fully closed position. In warm
weather, set the choke lever halfway or completely
open.
6. oil drain plug — Remove this plug to remove oil from
the engine's crankcase.
WaRning
Engine components can generate
extreme heat. To prevent burns, do
noT touch these areas while the
engine is running or immediately
after operating. neveR operate the
engine with the muffler removed.
2. spark plug — Provides spark to the ignition system.
Set spark plug gap to 0.024 - 0.028 inch (0.6 - 0.7 mm).
Clean spark plug once a week.
3. Recoil starter (pull rope) — Manual-starting method.
Pull the starter grip until resistance is felt, then pull
briskly and smoothly.
NOTICE
Operating the engine without an air filter, with a
damaged air filter, or a filter in need of replacement
will allow dirt to enter the engine, causing rapid engine
wear.
MTX70HF RaMMeR • opeRaTion and paRTs Manual — Rev. #0 (03/08/12) — page 13
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inspeCtiOn
It is extremely important that this section be read carefully
before attempting to operate the rammer. do noT use
your rammer until this section is thoroughly understood.
OIL LEVEL
DIPSTICK
CRankCase and spRing CylindeR oil baTH
This unit uses an oil bath lubrication system. Perform the
following:
1. Check the oil level through the oil level sight glass
(Figure 3) at the rear of the tamper foot.
Figure 5. Engine Oil Dipstick
OIL FILL PLUG
SIGHT GLASS
2. Low levels of oil may result in engine seizure due to
high levels of consumption during operation.
OIL DRAIN PLUG
3. Check the engine oil level and if the engine oil level is
low, it should be refilled. Use the proper motor oil as
suggested in the Table 3 below.
Table 3. Motor oil grade
Grade of motor oil
Season or Temperature
(higher than MS class)
Figure 3. Foot Housing Sight Glass
Spring, Summer or Autumn
SAE 30
NOTICE
+120° F to +15° F
The oil level should be kept at the half way point of the
sight glass.
Winter
+40° F to +15° F
SAE 30
2. If oil is not visible, add 10W-30 SE, SF or higher grade
motor oil into the oil fill plug opening (Figure 3). The
bath contains approximately 1.7 pints (820 cc.)
Below +15° F
SAE 10W-30
engine
geneRal inspeCTion
1. Fill the fuel tank (Figure 4) with unleaded gasoline. At
the same time, check the engine oil and make it a habit
to replenish it often (Figure 5).
1. Check all nuts, bolts fasteners for tightness. Retighten
as necessary.
2. Clean any dirt from the recoil starter and foot pedestal.
Wipe the entire unit clean before operating.
FUEL
TANK
3. Replace any missing or damaged Safety Operation
decals.
4. Adjust height of handle. Adjust handle by loosening
nuts and moving handle to suit operation. Retighten
nuts.
Figure 4. Fuel Tank
page 14 — MTX70HF RaMMeR • opeRaTion and paRTs Manual — Rev. #0 (03/08/12)
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OperatiOn
3. Grip the starter rope handle (Figure 8) and pull it until
you feel a slight resistance. Then pull sharply and
quickly. Return the handle to the starter case before
releasing.
CauTion
Failure to understand the operation of the Tamping
Rammer could result in severe damage to the unit or
personal injury.
iniTial sTaRTup
When starting the MTX70HF Tamping Rammer perform
the following:
1. Slide the throttle lever from the stop to the idle position
( ) (Figure 6). This opens the fuel cock and the
engine electrical circuit is turned on automatically.
STARTER
ROPE
Figure 8. Recoil Starter
4. If engine fails to start, move the choke lever (Figure 7)
to the half open position to avoid flooding.
THROTTLE LEVER
(IDLE POSITION)
5. Repeat steps 1 thru 4.
6. If the engine does not start after repeated attempts,do
the following:
a. Check fuel delivery from fuel tank to carburetor.
b. Check for restrictions to fuel flow at in-tank filter.
c. Check for restrictions to fuel flow at in-line filter.
Figure 6. Throttle Lever (Idle Position)
2. Place the choke lever to the closed position.When the
weather is cold, close the choke all the way. When it
is hot, or if the engine is hot, open the choke a little or
leave it fully open (Figure 7).
d. Inspect spark plug for contamination and proper
gap. Clean, adjust or replace spark plug as
required.
CHOKE LEVER
(OPENED POSITION)
Figure 7. Choke Lever
MTX70HF RaMMeR • opeRaTion and paRTs Manual — Rev. #0 (03/08/12) — page 15
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OperatiOn
opeRaTion
sTopping THe engine
1. To start the rammer tamping action, move the throttle
1. Move throttle lever quickly from the sTaRT to idle
position (Figure 6) and run the engine for three minutes
at low speed.After the engine cools, move the throttle
lever to the sTop position (Figure 10).The engine will
stop and the fuel cock is automatically closed.
lever (Figure 9) quickly from idle to the sTaRT (
position.do noT move the throttle lever slowly as this
)
may cause damage to the clutch or spring.
THROTTLE LEVER
(START POSITION)
THROTTLE LEVE
(STOP POSITION
Figure 9. Throttle Lever (Start Position)
CauTion
Figure 10. Throttle Lever (Stop Position)
Make sure that the throttle lever is moved to the Full
sTaRT position.Operating the rammer at less than full
speed can result in damage to the clutch springs or foot.
2. If the engine does not stop due to a problem with the
switch or the like, move the machine to a safe location
and hold the throttle lever in the stop position. Let the
machine run on idle and the machine will stop after a
few minutes.
2. The MTX70HF tamping rammer is designed to run
at 3,800 to 4,100 rpm. At optimum rpm the foot hits
at the rate between 590 - 695 impacts per minute.
Increasing throttle speed past factory set rpm does
not increase impacts and may damage unit. The
MTX70HF is designed to advance while tamping. For
faster advance, pull back slightly on the handle so that
rear of foot contacts soil first.
3. To stop the tamping action, move throttle lever quickly
from sTaRT to idle position (Figure 6).
page 16 — MTX70HF RaMMeR • opeRaTion and paRTs Manual — Rev. #0 (03/08/12)
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MaintenanCe
Perform the scheduled maintenance procedures as indi-
cated:
daily
„ Thoroughly remove dirt and oil from the engine and
control area.
„ Clean or replace the air cleaner elements as necessary.
Check and retighten all fasteners as necessary.
PRIMARY
ELEMENT
„ Check the spring box and bellows for oil leaks. Repair
or replace as needed.
Figure 12. Air Cleaner Primary Element
eveRy 50 HouRs
eveRy 200 HouRs
„ Remove the fuel filter cap and clean the inside of the
fuel tank (Figure 11).
„ Remove the oil drain plug on foot housing (Figure 13) and
drain the oil. Refill with approximately 1.7 pint (800 cc)
of 10W-30 SE, SF or higher grade motor oil. Oil should
be midway in sight glass.Break in oil should be changed
after first 50 hours.
OIL FILL PLUG
SIGHT GLASS
FUEL FILTER
OIL DRAIN PLUG
Figure 11. Fuel Filter
„ Remove and clean the spark plug, then adjust the spark
gap to 0.024~0.028 inch (0.6~0.7 mm).
Figure 13. Oil Drain Plug
eveRy 2yeaRs
eveRy 80 To 100 HouRs
„ Replace the fuel line every 2 years even if there is no
visible damage.
„ Remove the air cleaner cover. Loosen and remove
the 2 screws that hold the cover to the air cleaner
assembly. If the primary element (Figure 12) is dirty,
wash it with gasoline or kerosene. Then dip it in engine
oil (SAE10W-30) and wring the element so that 25 to 30
cc of engine oil remains on the element.
long TeRM sToRage
„ Slide the throttle lever to the sTop position.
„ Drain any fuel including in the fuel hose.
„ Replace lubrication oil and apply grease to lubrication
points.
„ Cover the air intake on the air cleaner and the exhaust
outlet on the muffler.
„ Store unit indoors covered with plastic sheet in moisture
free and dust free location out of direct sunlight.
MTX70HF RaMMeR • opeRaTion and paRTs Manual — Rev. #0 (03/08/12) — page 17
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trOuBlesHOOting
Troubleshooting (engine)
symptom
possible problem
solution
Spark plug bridging?
Check gap, insulation or replace spark plug.
Clean or replace spark plug.
Carbon deposit on spark plug?
Short circuit due to deficient spark plug
insulation?
Check spark plug insulation, replace if worn.
Improper spark plug gap?
Fuel reaching carburetor?
Water in fuel tank?
Set to proper gap.
Check fuel line.
Flush or replace fuel tank.
Replace fuel filter.
Fuel filter clogged?
Stuck carburetor?
Check float mechanism.
Check transistor ignition unit.
Difficult to start, fuel is available, but no spark
at spark plug.
Spark plug is red?
If insufficient compression, repair or replace
engine. If injected air leaking, correct leak. If
carburetor jets clogged, clean carburetor.
Spark plug is bluish white?
Check transistor ignition unit is broken, and
replace defective unit. Check if voltage cord
cracked or broken and replace. Check if
spark plug if fouled and replace.
No spark present at tip of spark plug?
No oil?
Add oil as required.
Oil pressure alarm lamp blinks upon starting? Check automatic shutdown circuit, "oil
(if applicable)
sensor". (if applicable)
ON/OFF switch is shorted?
Ignition coil defective?
Improper spark gap, points dirty?
Check switch wiring, replace switch.
Replace ignition coil.
Difficult to start, fuel is available, and spark is
present at the spark plug.
Set correct spark gap and clean points.
Condenser insulation worn or short circuiting? Replace condenser.
Spark plug wire broken or short circuiting?
Wrong fuel type?
Replace defective spark plug wiring.
Flush fuel system, and replace with correct
type of fuel.
Difficult to start, fuel is available, spark is
present and compression is normal.
Water or dust in fuel system?
Air cleaner dirty?
Flush fuel system.
Clean or replace air cleaner.
Close choke.
Choke open?
Suction/exhaust valve stuck or protruded?
Piston ring and/or cylinder worn?
Reseat valves.
Replace piston rings and/or piston.
Difficult to start, fuel is available, spark is
present and compression is low.
Cylinder head and/or spark plug not tightened
properly?
Torque cylinder head bolts and spark plug.
Head gasket and/or spark plug gasket damaged? Replace head and spark plug gaskets.
No fuel in fuel tank?
Fill with correct type of fuel.
Apply lubricant to loosen fuel cock lever,
replace if necessary.
Fuel cock does not open properly?
No fuel present at carburetor.
Fuel filter/lines clogged?
Fuel tank cap breather hole clogged?
Air in fuel line?
Replace fuel filter.
Clean or replace fuel tank cap.
Bleed fuel line.
page 18 — MTX70HF RaMMeR • opeRaTion and paRTs Manual — Rev. #0 (03/08/12)
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trOuBlesHOOting
Troubleshooting (engine) - continued
possible problem
symptom
solution
Clean or replace air cleaner.
Check float adjustment, rebuild carburetor.
Clean or replace spark plug.
Set to proper gap.
Air cleaner dirty?
Improper level in carburetor?
Defective spark plug?
Weak in power, compression is proper and
does not misfire.
Improper spark plug?
Flush fuel system and replace with correct
type of fuel.
Water in fuel system?
Weak in power, compression is proper but
misfires.
Dirty spark plug?
Clean or replace spark plug.
Replace ignition coil.
Ignition coil defective?
Spark plug heat value incorrect?
Wrong type of fuel?
Replace with correct type of spark plug.
Replace with correct type of fuel.
Clean cooling fins.
Cooling fins dirty?
Engine overheats.
Clear intake of dirt and debris. Replace air
cleaner elements as necessary.
Intake air restricted?
Oil level too low or too high?
Governor adjusted incorrectly?
Governor spring defective?
Fuel flow restricted?
Adjust oil to proper level.
Adjust governor.
Rotational speed fluctuates.
Replace governor spring.
Check entire fuel system for leaks or clogs.
Recoil mechanism clogged with dust and
dirt?
Clean recoil assembly with soap and water.
Replace spiral spring.
Recoil starter malfunctions. (if applicable)
Spiral spring loose?
Ensure tight, clean connections on battery
and starter.
Loose, damaged wiring?
Starter malfunctions.
Battery insufficiently charged?
Recharge or replace battery.
Replace starter.
Starter damaged or internally shorted?
Check and clean valves. Check muffler and
replace if necessary.
Over-accumulation of exhaust products?
Wrong spark plug?
Burns too much fuel.
Replace spark plug with manufacturer's
suggested type.
Lubricating oil is wrong viscosity?
Worn rings?
Replace lubricating oil with correct viscosity.
Replace rings.
Exhaust color is continuously "white".
Air cleaner clogged?
Clean or replace air cleaner.
Adjust choke valve to correct position.
Choke valve set to incorrect position?
Carburetor defective, seal on carburetor
broken?
Exhaust color is continuously "black".
Replace carburetor or seal.
Poor carburetor adjustment, engine runs too
rich?
Adjust carburetor.
ON/OFF device not activated ON?
Battery disconnected or discharged?
Ignition switch/wiring defective?
Turn on ON/OFF device.
Check cable connections. Charge or replace
battery
Will not start, no power with key "ON". (if
applicable)
Replace ignition switch. Check wiring.
MTX70HF RaMMeR • opeRaTion and paRTs Manual — Rev. #0 (03/08/12) — page 19
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trOuBlesHOOting
Troubleshooting (Rammer)
symptom
possible problem
solution
Operating speed of throttle lever is
incorrectly set?
Set throttle lever to correct position.
Oil in excess?
Clutch slips?
Spring Failure?
Drain excess oil. Bring to correct level.
Replace or adjust clutch.
Engine runs but rammer jumps
erratically or not at all.
Replace spiral spring.
Adjust engine speed to correct
operating RPM setting.
Speed of engine improper?
Soil over-compacted?
Shut down machine and test soil.
page 20 — MTX70HF RaMMeR • opeRaTion and paRTs Manual — Rev. #0 (03/08/12)
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nOtes
MTX70HF RaMMeR • opeRaTion and paRTs Manual — Rev. #0 (03/08/12) — page 21
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eXplanatiOn OF COde in reMarKs COluMn
The following section explains the different symbols and
QTy. Column
remarks used in the Parts section of this manual. Use the
help numbers found on the back page of the manual if there
are any questions.
numbers used — Item quantity can be indicated by a
number, a blank entry, or A/R.
A/R (As Required) is generally used for hoses or other
parts that are sold in bulk and cut to length.
NOTICE
The contents and part numbers listed in the parts
section are subject to change without notice.Multiquip
does not guarantee the availability of the parts listed.
A blank entry generally indicates that the item is not sold
separately.Other entries will be clarified in the“Remarks”
Column.
saMple paRTs lisT
ReMaRks Column
no. paRT no. paRT naMe
QTy. ReMaRks
Some of the most common notes found in the “Remarks”
Column are listed below. Other additional notes needed
to describe the item can also be shown.
1
2%
12345
BOLT .....................1 .....INCLUDES ITEMS W/%
WASHER, 1/4 IN. ..........NOT SOLD SEPARATELY
WASHER, 3/8 IN. ..1 .....MQ-45T ONLY
2% 12347
3
4
12348
12349
HOSE ..................A/R ...MAKE LOCALLY
BEARING ..............1 .....S/N 2345B AND ABOVE
assembly/kit — All items on the parts list with the
same unique symbol will be included when this item is
purchased.
no. Column
Indicated by:
unique symbols — All items with same unique
symbol
“INCLUDES ITEMS W/(unique symbol)”
(@, #, +, %, or >) in the number column belong to the
same assembly or kit, which is indicated by a note in the
“Remarks” column.
serial number break — Used to list an effective serial
number range where a particular part is used.
Indicated by:
duplicate item numbers — Duplicate numbers indicate
multiple part numbers, which are in effect for the same
general item, such as different size saw blade guards in
use or a part that has been updated on newer versions
of the same machine.
“S/N XXXXX AND BELOW”
“S/N XXXX AND ABOVE”
“S/N XXXX TO S/N XXX”
specific Model number use — Indicates that the part
is used only with the specific model number or model
number variant listed. It can also be used to show a
part is NOT used on a specific model or model number
variant.
NOTICE
When ordering a part that has more than one item
number listed, check the remarks column for help in
determining the proper part to order.
Indicated by:
“XXXXX ONLY”
“NOT USED ON XXXX”
paRT no. Column
numbers used — Part numbers can be indicated by a
number, a blank entry, or TBD.
“Make/obtain locally” — Indicates that the part can
be purchased at any hardware shop or made out of
available items.Examples include battery cables, shims,
and certain washers and nuts.
TBD (To Be Determined) is generally used to show a
part that has not been assigned a formal part number
at the time of publication.
“not sold separately”— Indicates that an item cannot
be purchased as a separate item and is either part of an
assembly/kit that can be purchased, or is not available
for sale through Multiquip.
A blank entry generally indicates that the item is not sold
separately or is not sold by Multiquip. Other entries will
be clarified in the “Remarks” Column.
page 22 — MTX70HF RaMMeR • opeRaTion and paRTs Manual — Rev. #0 (03/08/12)
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suggested spare parts
MTX70HF RaMMeR WiTH Honda gX100ukRb5 engine
1 To 3 uniTs
Qty. p/n description
1............956100062............THROTTLE WIRE
3............366010070............PRIMARY ELEMENT, AIR CLEANER
3............366010080............SECONDARY ELEMENT, AIR CLEANER1
1............366350010............CAP ASSY., FUEL TANK
3............9805655777..........SPARK PLUG
1............954406010............STRAINER, FUEL TANK
1............28462Z0DV03.......ROPE, RECOIL STARTER
NOTICE
Part numbers on this Suggested Spare Parts list may
supersede/replace the part numbers shown in the
following parts lists.
MTX70HF RaMMeR • opeRaTion and paRTs Manual — Rev. #0 (03/08/12) — page 23
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naMeplates and deCals
4
1
7
13$ꢀꢁꢁꢁꢁ
2
3
5
13$ꢀꢁꢁꢁꢁ
6723
13$ꢀꢁꢁꢁꢁ
6
11
02'(/
6(5,$/ 12ꢂ
A (DECAL SET)
8
series
quick manual
(QJLQH 2LO
8VH 6$( ꢃꢁ:ꢄꢅꢁꢆ6( RU KLJKHU JUDGH PRWRU RLO
5$00,1* &</,1'(5 2,/
8VH 6$( ꢃꢁ:ꢄꢅꢁꢆ6) RU KLJKHU JUDGH PRWHU RLO
)XHO
8VH QRUPDO TXDOLW\ JDVROLQH
page 24 — MTX70HF RaMMeR • opeRaTion and paRTs Manual — Rev. #0 (03/08/12)
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naMeplates and deCals
no.
A
1
2#
3#
4#
5#
6#
7#
8
paRT no.
920900040
920212910
paRT naMe
DECAL SET ......................................................1................INCLUDES ITEMS W/#
QTy.
ReMaRks
DECAL: OPERATION
1
1
1
1
1
1
1
1
DECAL: AIR CLEANER
DECAL: LEVER OPERATION
DECAL: MAX SPEED
DECAL: MACHINE STOP
DECAL: EC NOISE REQ
DECAL: ANTI-VIB HANDLE
QUICK MANUAL
920212540
920214100
11
DECAL: NAMEPLATE .......................................1................CONTACT MQ PARTS DEPT W/
SERIAL NO.
12
DECAL: E/G FIRE WARNING
1
MTX70HF RaMMeR • opeRaTion and paRTs Manual — Rev. #0 (03/08/12) — page 25
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CranKCase and engine assy
48
45
49
46
46
49
36-4
36-3
36-2
70-1
70-2
70-3
36-1
36
36-7
36-9
36-8
65
69
71
41
42-1
42-2
42-3
73
75
36-5
54-1
54-2
74
61
54
39 37
32-1
32-1
40
38
23
43-2
43-1
34
50
111
60
51
55
56
35
72
51
31
24
57-2
57-1
25-2
25-1
33
50
47
29
4
26
5
28
59
2
2
1
58
63
62
58
A
61
55
56
53
17
16
9
57-2
14
57-1
A
101
19
11
10
12
3
7
6
106
15
13
76
20
21
page 26 — MTX70HF RaMMeR • opeRaTion and paRTs Manual — Rev. #0 (03/08/12)
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CranKCase and engine assy
no.
1
2$
3
4
5
6
7
9
10
11
12
13
14
15
16
17
19
20
21
23
24
paRT no.
366910010
009120204
041006007
366345170
060404010
080200350
080100620
040006207
040006305
080100720
080200350
080200250
366345230
040006304
080100520
080200200
047940060
050710080
001520825
366348550
952401450
paRT naMe
CRANKCASE ....................................................1................INCLUDES ITEMS W/ $
QTy.
ReMaRks
STUD BOLT 10 X 30
BEARING 6007Z
DRUM, PINION
OIL SEAL TC·40528
STOP RING S-35
STOP RING R-62
BEARING 6207
4
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
8
1
1
1
1
1
4
4
1
4
4
1
1
1
BEARING 6305
STOP RING R-72
STOP RING S-35
STOP RING S-25
CONNECTING ROD
BEARING 6304
STOP RING R-52
STOP RING S-20
NEEDLE BEARING FJ-1816
O-RING
SOCKET HEAD BOLT 8X25 T
CLUTCH ASSY
WASHER, 5X22X3
BOLT 8X25 T
WASHER, LOCK M8
FLANGE, ENGINE
FLANGE BOLT 8X30
FLANGE NUT M10
BRACKET, SHOCK ABSORBER
BOLT 10X30
WASHER, LOCK M10
STOPPER RUBBER (70)
WASHER, LOCK M8
NUT M8
25-1 001220825
25-2 030208200
26
28
29
31
32-1 001221030
32-2 030210250
33
34
35
36
366217180
001710830
022611010
366346280
939010270
030208200
020308060
366900010
CRANKCASE CP ..............................................1................INCLUDES ITEMS W/ #
36-1# 366010010
36·2# 366010020
36-3# 030206150
36-4# 366010040
36-5# 366010050
36-7# 366010070
36-8# 366010080
36-9# 362030040
AIR CLEANER COVER CP
WASHER, FLAT M6
WASHER, LOCK M6
COIN BOLT M6
BASE CP, AIR CLEANER
PRIMARY ELEMENT CP
SECONDARY ELEMENT
GRIP BELT CP
1
2
2
2
1
1
1
1
1
1
1
1
1
37
38
39
40
41
366345470
954407681
954407682
366460160
366460150
PIPE, INTAKE
CYCLONE CLAMP (CY-1) 45
CYCLONE CLAMP (CY-1) 38
SEALING FORM, UNDER
SEALING FORM, SIDE
MTX70HF RaMMeR • opeRaTion and paRTs Manual — Rev. #0 (03/08/12) — page 27
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CranKCase and engine assy
48
45
49
46
46
49
36-4
36-3
36-2
70-1
70-2
70-3
36-1
36
36-7
36-9
36-8
65
69
71
41
42-1
42-2
42-3
73
75
36-5
54-1
54-2
74
61
54
39 37
32-1
32-1
40
38
23
43-2
43-1
34
50
111
60
51
55
56
35
72
51
31
24
57-2
57-1
25-2
25-1
33
50
47
29
4
26
5
28
59
2
2
1
58
63
62
58
A
61
55
56
53
17
16
9
57-2
14
57-1
A
101
19
11
10
12
3
7
6
106
15
13
76
20
21
page 28 — MTX70HF RaMMeR • opeRaTion and paRTs Manual — Rev. #0 (03/08/12)
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CranKCase and engine assy
no.
paRT no.
paRT naMe
BOLT 8X55 T
WASHER, LOCK M8
WASHER, FLAT M8
BOLT 8X15
WASHER, LOCK M8
COVER, CLEANER(UPPER)
RUBBER BUSH 10X16X17
COVER, CLEANER (LOWER)
KNOB, CLEANER COVER
O-RING P6
FLANGE BOLT 8X20
SQUARE NUT M8
GUARD, LINK
QTy.
2
2
2
2
2
1
2
1
2
2
4
4
1
1
2
2
4
4
2
1
4
4
1
4
ReMaRks
42-1 001220851
42-2 030208200
42-3 031108160
43-1 001210815
43-2 030208200
45
46
47
48
49
50
51
53
54
55
56
366217340
366460140
366217350
366345980
050200060
009110040
959407670
366118893
366118903
022910260
366460170
GUARD, MUFFLER
WELL NUT, M8
FLANGE COLLAR 8
SOCKET HEAD BOLT 8X20 T
WASHER, FLAT M8
SOCKET HEAD BOLT 8X30 ZN
EX BAR
SOCKET HEAD BOLT 6X25 ZN
WELL NUT M6
GUARD, ENGINE
57-1 001520820
57-2 033910220
58
59
60
61
62
63
64
65
009110038
368217770
009110039
022910250
366118913
009110038
033910220
356200100
SOCKET HEAD BOLT 8X30 ZN
WASHER 8.4X15.5X1.6
COMBINATION LEVER ASSY W/WIRE............1................INCLUDES ITEMS W/@
4
69@ 956100062
70-1 001220620
70-2 030206150
70-3 031106100
THROTTLE WIRE
BOLT 6X20T
WASHER, LOCK M6
WASHER, FLAT M6
NUT M6
CLIP (TCP2-10509B)
WIRE HARNESS
CLAMP
SPIRAL TUBE KEP6/L=500
CLAMP, TC-100
1
2
2
2
2
1
1
2
1
3
8
1
1
1
71
72
020306050
959006120
366460110
2067550101
959021814
454010020
366461050
366345190
366010111
912210017
73
74
75
76
79
COLLAR, GUARD
CRANK GEAR
FRONT COVER
101
106
111
ENGINE ASSY, GX100UKRB5
MTX70HF RaMMeR • opeRaTion and paRTs Manual — Rev. #0 (03/08/12) — page 29
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guide Cylinder assy
32
1
2
20
22
3
9
21
12
24
27
8
17
14
18
28
26
25
29
13
15
16
23
29
9
27
28
25
26
7
24
31
30
4
6
5-2
5-1
51
52
53
page 30 — MTX70HF RaMMeR • opeRaTion and paRTs Manual — Rev. #0 (03/08/12)
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guide Cylinder assy
no.
1
2
3
4
5-1
5-2
6
7
8
paRT no.
366460100
366459910
366346000
371459690
001121230
030212300
952404790
355447260
366459900
366459730
366345990
366217210
050100900
001521020
001521040
953405270
953405260
366217440
050710070
002211035
354010010
050931500
354336352
354442340
001220840
020308060
354446170
953405270
953405260
050200950
366118590
366460300
953404670
paRT naMe
PISTON PIN
PLUG, PISTON PIN
PISTON ROD
PISTON END
BOLT 12X30 T
WASHER, LOCK M12
WASHER 13306
STOPPER, LOWER
STOPPER, BOTTOM
MAIN SPRING
QTy.
1
2
1
1
1
1
1
1
1
2
1
1
1
4
4
1
1
1
1
4
1
2
2
2
2
2
2
1
1
1
1
1
1
ReMaRks
9
12
13
14
15
16
17
18
20
21
22
23
24
25
26
27
28
29
30
31
32
51
52
53
SPRING CYLINDER
FOOT PLATE 12
O-RING G-90
SOCKET HEAD BOLT 10X20 T
SOCKET HEAD BOLT 10X40 T
PLUG 1/4X14 13L
PACKING 1/4 (CU)
GUIDE CYLINDER
O-RING AS568-344
BOLT 10X35 H, SW
BELLOWS, ORANGE
O-RING JAS03150
BELLOWS CLAMP(1.6T)171 D
BAND GUIDE, BELLOWS
BOLT 8X40 T
NUT M8
PIN 6D-8.5L
PLUG 1/4X14 13L
PACKING 1/4 (CU)
O-RING P-95
PROTECTION SLEEVE
OIL GAUGE ASSY
COPPER PACKING 17X25.5X1
MTX70HF RaMMeR • opeRaTion and paRTs Manual — Rev. #0 (03/08/12) — page 31
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FOOt assy
2
3
6
2
3
1
4
5
page 32 — MTX70HF RaMMeR • opeRaTion and paRTs Manual — Rev. #0 (03/08/12)
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FOOt assy
no.
1
2
3
4
paRT no.
8511S
paRT naMe
FOOT ASSY 285
NYLON NUT M12
WASHER, LOCK M12
BOLT, SQUARE NECK 12X65
BOLT, SQUARE NECK 12X95
GRIP HANDLEBAR
QTy.
ReMaRks
1
4
4
2
2
1
0211121409
030212300
009110034
009110035
363343390
5
6
MTX70HF RaMMeR • opeRaTion and paRTs Manual — Rev. #0 (03/08/12) — page 33
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Fuel tanK and Handle assy
9
8
202
201
54
51
53
10
56
22
14
15
55
16
A
18
17
3
12
11-2
11-1
12
11-2
11-1
4-1
4-2
7
13
6
11-2
11-1
40
101
5
41
43
20
19
A
103
43
4-2
4-1
42
20
41
42
102
1
2-2
2-1
page 34 — MTX70HF RaMMeR • opeRaTion and paRTs Manual — Rev. #0 (03/08/12)
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Fuel tanK and Handle assy
no.
1
2-1
2-2
3
4-1
4-2
5
6
7
8
*
9
10
paRT no.
366346270
001521020
033121009
368119570
001211020
030210250
939010270
030208200
020308060
366010060
366350010
366118703
paRT naMe
QTy.
ReMaRks
SHOCK ABSORBER W/PIN
SOCKET HEAD BOLT 10 X 20 T
TOOTHED LOCK WASHER B M10
HANDLE
2
4
4
1
4
4
1
1
1
1
BOLT 10 X 20 H
WASHER, LOCK M10
STOPPER RUBBER (70)
WASHER, LOCK M8
NUT M8
STRAP, FUEL TANK CAP
CAP ASSY., FUEL TANK ...................................1................INCLUDES ITEMS W/
*
FUEL TANK/MTX70
BOLT 8X15 H
1
3
3
2
1
1
1
1
3
3
1
2
2
11-1 011008015
11-2 030208200
12
13
14
15
16
17
18
19
20
22
WASHER, LOCK M8
WASHER 8.5 X 22 X 3
WASHER FLAT M8
STRAINER #110
PACKING, FUEL TANK
HOLDER, FILTER
NUT M5
WASHER, LOCK M5
FUEL HOSE L=70
HOSE BAND
TAPPING SCREW 5 X 20
ROLLER ASSY W/ SCREW .............................1................INCLUDES ITEMS W/ #
ROLLER
SCREW 5 X 20
FLANGE NUT M5 H
TP22 TACHO/HOUR METER
CURL CORD 850L
FINISHER, METER
CLAMP TC100
952401450
031108160
954406010
366459790
366345280
020305040
030205130
959328401
0561080020
009110037
366910030
366217170
091005020
022610505
955010311
980010400
366345620
454010020
954010270
40
41#
42#
43#
51
53
54
2
4
4
1
1
1
5
1
1
1
1
1
4
55
56
CLIP AB-3N
101
102
103
201
202
H950024085008 HOSE BAND 2
H950024085008 HOSE BAND 5-5-2
91434Z4EW51
920212910
094010053
FUEL HOSE 350
OPERATION DECAL
PAN HEAD SCREW 4 X 8
MTX70HF RaMMeR • opeRaTion and paRTs Manual — Rev. #0 (03/08/12) — page 35
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COMBinatiOn leVer assy
page 36 — MTX70HF RaMMeR • opeRaTion and paRTs Manual — Rev. #0 (03/08/12)
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COMBinatiOn leVer assy
no.
A
paRT no.
956200110
366349430
366010310
366010190
366010200
366010210
366010220
020408050
959407650
366010320
956100062
paRT naMe
COMB. LEVER...................................................1................INCLUDES ITEMS W/@
QTy.
ReMaRks
1@
2@
3@
4@
5@
6@
7@
8@
9@
10
FUEL COCK
LEVER
1
1
1
1
1
1
2
1
1
1
4
1
1
1
SLlDER
END CAP
WIRE CAP
BOLT AND WASHER SET
NUT M8, H=5
SOCKET HEAD SCREW W/ TH.WIRE
STOP SWITCH
THROTTLE WIRE
TAPPING SCREW B1 4X12
TAPPING SCREW B1 4X30
O-RING, P15
11@ 094010051
12@ 094010052
13@ 050200150
14@ 050200110
O-RING, P11
MTX70HF RaMMeR • opeRaTion and paRTs Manual — Rev. #0 (03/08/12) — page 37
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tOOls assy
page 38 — MTX70HF RaMMeR • opeRaTion and paRTs Manual — Rev. #0 (03/08/12)
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tOOls assy
no.
1
2
3
4
paRT no.
981010400
983010060
983910030
009110044
paRT naMe
QTy.
ReMaRks
CLUTCH PULLER A
CLUTCH MOUNTER
PISTON ROD HOLDER
SOCKET HEAD BOLT 8X50 (FULL THREAD)
CRANK GEAR REMOVER
CLUTCH PULLER B
1
1
1
2
1
1
1
5
6
7
983910021
983010042
983910010
SPRING CYLINDER REMOVER
PISTON END REMOVER
MTX70HF RaMMeR • opeRaTion and paRTs Manual — Rev. #0 (03/08/12) — page 39
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HOnda gX100KrB5 engine — Cylinder Barrel assy.
page 40 — MTX70HF RaMMeR • opeRaTion and paRTs Manual — Rev. #0 (03/08/12)
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HOnda gX100KrB5 engine — Cylinder Barrel assy.
no.
1
2@
3@
5
6
7
8
9
paRT no.
paRT naMe
BARREL ASSY., CYLINDER ............................1................INCLUDES ITEMS W/@
QTy.
ReMaRks
12000Z0D405
12201Z0D305
12204Z0D305
12311Z0D000
12355Z0D000
12365Z0D000
15571Z0DV71
15572ZM7000
15721Z0DV70
90014952000
GUIDE ASSY., EX VALVE (O.S.)
GUIDE, INLET VALVE (O.S)
COVER, HEAD T
1
1
1
1
1
1
1
1
6
1
1
1
1
1
COVER COMP A, BREATHER
COVER COMP B, BREATHER
VALVE, OIL OUTLET
PLATE, STOPPER
10
11
TUBE, BREATHER
VOLT, FLANGE 6X14 (CT200)
OIL SEAL 20X32X6
SCREW 3X5
12@ 91202KJ9003
13
14
15
16
93500030050A
9805655777
15171Z0DV00
90008ZM7000
PLUG, SPARK (CR5HSB)
PIPE, BREATHER
BOLT 4X10
MTX70HF RaMMeR • opeRaTion and paRTs Manual — Rev. #0 (03/08/12) — page 41
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HOnda gX100KrB5 engine — CranKCase COVer assy.
page 42 — MTX70HF RaMMeR • opeRaTion and paRTs Manual — Rev. #0 (03/08/12)
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HOnda gX100KrB5 engine — CranKCase COVer assy.
no.
1
3
4#
5@
9@
10
11
12
paRT no.
paRT naMe
QTy.
ReMaRks
11300Z0D409
15600ZM7003
15625ZE1003
16510ZL8000
16531ZE1000
16541Z0D000
957010602500
90131ZE1000
COVER ASSY., CRANK CASE .........................1................INCLUDES ITEMS W/@
OIL FILLER CAP ASSY ....................................2................INCLUDES ITEMS W/#
PACKING, OIL FILLER CAP
GOVERNOR ASSY.
SLIDER, GOVERNOR
SHAFT, GOVERNOR ARM
FLANGE BOLT 6x25
BOLT, DRAIN PLUG
THRUST WASHER 6 MM
WASHER, DRAIN PLUG
CLIP, GOVERNOR HOLDER
OIL SEAL 20x32x6
PLAIN WASHER 6 MM
LOCK PIN
KNOCK PIN
BEARING, RADIAL BALL 6204
OIL SEAL 6x11x4
2
1
1
1
8
1
1
1
1
1
2
1
2
1
1
13@ 90451ZE1000
14 90601ZE1000
15@ 90602ZE1000
16@ 91202KJ9003
17@ 58176
18
19
9425108000
9430108200
21@ 91001Z0DV01
24 91231891003
MTX70HF RaMMeR • opeRaTion and paRTs Manual — Rev. #0 (03/08/12) — page 43
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HOnda gX100KrB5 engine — CranKsHaFt assy.
page 44 — MTX70HF RaMMeR • opeRaTion and paRTs Manual — Rev. #0 (03/08/12)
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HOnda gX100KrB5 engine — CranKsHaFt assy.
no.
3
6@
paRT no.
13310Z0DV70
91001Z0DV01
paRT naMe
CRANK SHAFT COMP .....................................1................INCLUDES ITEM W/@
BEARING, RADIAL BALL
QTy.
ReMaRks
1
MTX70HF RaMMeR • opeRaTion and paRTs Manual — Rev. #0 (03/08/12) — page 45
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HOnda gX100KrB5 engine — pistOn/COnn. rOd assy.
page 46 — MTX70HF RaMMeR • opeRaTion and paRTs Manual — Rev. #0 (03/08/12)
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HOnda gX100KrB5 engine — pistOn/COnn. rOd assy.
no.
1
2
3
4
paRT no.
paRT naMe
RING SET, PISTON
PISTON
QTy.
ReMaRks
13010Z0D003
13101Z0D000
13111ZE0000
13200Z0D000
13200Z0D305
1
1
1
PISTON PIN
CONNECTING ROD ASSY. ..............................1................INCLUDES ITEM W/@
CONNECTING ROD ASSY. ..............................1................UNDERSIZE
INCLUDES ITEM W/@
4
5@
6
90001ZM7000
90551ZE0000
CONNECTING ROD BOLT
CLIP, PISTON PIN 13MM
2
2
MTX70HF RaMMeR • opeRaTion and paRTs Manual — Rev. #0 (03/08/12) — page 47
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HOnda gX100KrB5 engine — CaMsHaFt assy.
page 48 — MTX70HF RaMMeR • opeRaTion and paRTs Manual — Rev. #0 (03/08/12)
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HOnda gX100KrB5 engine — CaMsHaFt assy.
no.
1
2
3
4
5
6
7
8
paRT no.
paRT naMe
QTy.
1
1
1
1
1
2
1
1
2
2
2
2
1
1
ReMaRks
14320Z0D010
14324Z0D000
14400Z0D003
14431Z0D000
14441Z0D000
14461ZL8000
14711Z0D000
14721Z0D000
14751Z0D000
14771ZM3010
90012333000
90206001000
91301ZM0V31
12209KT7013
PULLEY, COMP., CAMSHAFT
SHAFT, CAM PULLEY
TIMING BELT (61YU7 G-200)
ROCKER ARM, INTAKE VALVE
ROCKER ARM, EXHAUST VALVE
SHAFT, ROCKER ARM
INLET VALVE
EXHAUST VALVE
SPRING, VALVE
RETAINER, VALVE SPRING
SCREW, TAPPET ADJUSTING
NUT, TAPPET ADJUSTING
O-RING 6.8X1.9
9
10
11
12
13
14
SEAL, VALVE STEM
MTX70HF RaMMeR • opeRaTion and paRTs Manual — Rev. #0 (03/08/12) — page 49
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HOnda gX100KrB5 engine — reCOil starter assy.
page 50 — MTX70HF RaMMeR • opeRaTion and paRTs Manual — Rev. #0 (03/08/12)
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HOnda gX100KrB5 engine — reCOil starter assy.
no.
1
paRT no.
28400Z0DV04ZA RECOIL STARTER ASSY .................................1................INCLUDES ITEMS W/@
paRT naMe
QTy.
ReMaRks
2@
3@
4@
5@
6@
7@
8@
9@
28410Z0DV02ZA CASE COMP, RECOIL @5-3-5
1
1
1
1
1
1
1
1
1
1
1
3
28421Z0DV02
28422ZG0W02
28433ZG0W02
28441ZW9003
28442ZH8003
28461ZH8013
28462Z0DV03
REEL, RECOIL STARTER
RATCHET, STARTER
GUIDE, RATCHET
SPRING, FRICTION
SPRING, RECOIL STARTER
STARTER KNOB
ROPE, RECOIL STARTER
PLATE, SIDE
PLATE, SLIDE
10@ 28467Z0DV02
11@ 28468Z0DV02
12@ 90003ZH8003
SET SCREW
BOLT, FLANGE 6X8
13
957010600800
MTX70HF RaMMeR • opeRaTion and paRTs Manual — Rev. #0 (03/08/12) — page 51
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HOnda gX100KrB5 engine — Fan COVer assy.
page 52 — MTX70HF RaMMeR • opeRaTion and paRTs Manual — Rev. #0 (03/08/12)
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HOnda gX100KrB5 engine — Fan COVer assy.
no.
1
3
paRT no.
19610Z4ES30ZA FAN COVER CP
90014952000 BOLT, FLANGE 6X14 (CT200)
paRT naMe
QTy.
1
4
ReMaRks
MTX70HF RaMMeR • opeRaTion and paRTs Manual — Rev. #0 (03/08/12) — page 53
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HOnda gX100KrB5 engine — CarBuretOr assy.
page 54 — MTX70HF RaMMeR • opeRaTion and paRTs Manual — Rev. #0 (03/08/12)
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HOnda gX100KrB5 engine — CarBuretOr assy.
no.
1@
2@
3@
4@
5@
6@
7@
8@
9
paRT no.
paRT naMe
GASKET SET
FLOAT VALVE SET
FLOAT SET
FLOAT CHAMBER SET
SCREW SET
DRAIN SCREW SET
SCREW SET
LEVER SET, CHOKE
QTy.
ReMaRks
16010Z0DV21
16011ZE0005
16013ZG0811
16015Z0DV21
16016Z0DV21
16024ZB9005
16028ZW6611
16044Z0DS01
16100Z4EW51
1
1
1
1
1
1
1
1
CARBURETOR ASSY ......................................1................INCLUDES ITEMS W/@
10@ 16124ZE0005
11@ 16166Z0D003
12@ 16199Z0DV21
SCREW, THROTTLE STOP
MAIN NOZZLE
TUBE, VENT
INSULATOR, CARBURETOR
PACKING, INSULATOR
PACKING, CARBURETOR
SCREW 4X12
1
1
1
1
1
1
1
1
1
1
1
13
14
15
16211Z0D000
16212Z0DV20
16221ZG0801
16@ 938920401208
19@ 950030502131
20@ 99101ZG00580 MAIN JET #58
21@ 99204ZE00350 PILOT JET SET #35
22 90602921000 CLIP, TUBE
TUBE, VINYL 3.5X6.5X100
MTX70HF RaMMeR • opeRaTion and paRTs Manual — Rev. #0 (03/08/12) — page 55
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HOnda gX100KrB5 engine — air Cleaner assy.
page 56 — MTX70HF RaMMeR • opeRaTion and paRTs Manual — Rev. #0 (03/08/12)
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HOnda gX100KrB5 engine — air Cleaner assy.
no.
8
10
11
14
paRT no.
paRT naMe
PACKING, AIR CLEANER
STUD BOLT 5X95
FLANGE NUT 5MM
ELBOW, AIR CLEANER
QTy.
ReMaRks
17228Z0DV21
90042Z4ES30
9405005000
17410Z0DS00
1
2
2
1
MTX70HF RaMMeR • opeRaTion and paRTs Manual — Rev. #0 (03/08/12) — page 57
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HOnda gX100KrB5 engine — MuFFler assy.
page 58 — MTX70HF RaMMeR • opeRaTion and paRTs Manual — Rev. #0 (03/08/12)
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HOnda gX100KrB5 engine — MuFFler assy.
no.
1
2
3
4
paRT no.
paRT naMe
MUFFLER COMP.
MUFFLER PROTECTOR
GASKET, MUFFLER
BOLT, FLANGE 6X14 (CT200)
STUD BOLT 6X78
QTy.
ReMaRks
18310Z0DV20
18321Z0DV22
18381Z0D000
90014952000
90048Z0DV00
90343ZE6000
1
1
1
3
2
2
5
6
NUT, SELF-LOCK 6MM
MTX70HF RaMMeR • opeRaTion and paRTs Manual — Rev. #0 (03/08/12) — page 59
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HOnda gX100KrB5 engine — FlywHeel ignitiOn assy.
page 60 — MTX70HF RaMMeR • opeRaTion and paRTs Manual — Rev. #0 (03/08/12)
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HOnda gX100KrB5 engine — FlywHeel ignitiOn assy.
no.
1
3
4
7
9
10
11
paRT no.
paRT naMe
QTy.
ReMaRks
13331ZM7000
30564ZA5000
131110Z0D003
90022888010
9405012000
28451Z0DV03
30500Z0DV02
WOODRUFF KEY 25X18
GROMMET, CORD
FLYWHEEL COMP
FLANGE BOLT 6X20
FLANGE NUT M12
STARTER PULLEY
1
1
1
2
1
1
IGNITION COIL ASSY ......................................1................INCLUDES ITEM W/@
TERMINAL ASSY
12@ 30700Z0DV01
1
MTX70HF RaMMeR • opeRaTion and paRTs Manual — Rev. #0 (03/08/12) — page 61
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HOnda gX100KrB5 engine — COntrOl assy.
page 62 — MTX70HF RaMMeR • opeRaTion and paRTs Manual — Rev. #0 (03/08/12)
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HOnda gX100KrB5 engine — COntrOl assy.
no.
3
4
5
6@
8
paRT no.
paRT naMe
QTy.
ReMaRks
16555Z0DV20
16561Z0DV20
16562Z0DV20
16594883010
90014952000
90015ZE5010
GOVERNOR ROD
GOVERNOR SPRING
SPRING, THROTTLE RETURN
HOLDER, WIRE
BOLT, FLANGE 6X14 (CT200)
BOLT, GOVERNOR ARM
CIR CLIP
BOLT 5X20
SCREW 4X6
FLANGE NUT 6MM
GOVERNOR ARM
1
1
1
1
2
1
1
1
1
1
1
9
10@ 90605230000
11@ 92301050220A
12@ 0043504060
15
17
19
9405006000
16550Z0DV21
16500Z4ES30
CONTROL ASSY ..............................................1................INCLUDES ITEMS W/@
NUT M5
20@ 940010500005
2
MTX70HF RaMMeR • opeRaTion and paRTs Manual — Rev. #0 (03/08/12) — page 63
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HOnda gX100KrB5 engine — laBels assy.
page 64 — MTX70HF RaMMeR • opeRaTion and paRTs Manual — Rev. #0 (03/08/12)
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HOnda gX100KrB5 engine — laBels assy.
no.
2
4
6
9
14
paRT no.
paRT naMe
QTy.
ReMaRks
87521ZODV02
87516Z0JOOO
87601Z4EW50
87539Z0JOOO
89216130690
LABEL, TRADE MARK
MARK, OPERATOR CAUTION
MARK, TYPE (KRBF)
MARK, EX. CAUTION
WRENCH, SPARK PLUG
1
1
1
1
1
MTX70HF RaMMeR • opeRaTion and paRTs Manual — Rev. #0 (03/08/12) — page 65
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terMs and COnditiOns OF sale — parts
5. Parts must be in new and resalable
condition, in the original Multiquip
package (if any), and with Multiquip part
numbers clearly marked.
Multiquip reserves the right to quote and
sell direct to Government agencies, and to
Original Equipment Manufacturer accounts
who use our products as integral parts of their
own products.
payMenT TeRMs
Terms of payment for parts are net 30 days.
FReigHT poliCy
6. The following items are not returnable:
All parts orders will be shipped collect or
prepaid with the charges added to the invoice.
All shipments are F.O.B. point of origin.
Multiquip’s responsibility ceases when a
signed manifest has been obtained from the
carrier, and any claim for shortage or damage
must be settled between the consignee and
the carrier.
a. Obsolete parts. (If an item is in the
price book and shows as being
replaced by another item, it is
obsolete.)
speCial eXpediTing seRviCe
A $35.00 surcharge will be added to the
invoice for special handling including bus
shipments, insured parcel post or in cases
where Multiquip must personally deliver the
parts to the carrier.
b. Any parts with a limited shelf life
(such as gaskets, seals, “O” rings,
and other rubber parts) that were
purchased more than six months
prior to the return date.
liMiTaTions oF selleR’s liabiliTy
MiniMuM oRdeR
Multiquip shall not be liable hereunder for
damages in excess of the purchase price of
the item with respect to which damages are
claimed, and in no event shall Multiquip be
liable for loss of profit or good will or for any
other special, consequential or incidental
damages.
The minimum charge for orders from Multiquip
is $15.00 net. Customers will be asked for
instructions regarding handling of orders not
meeting this requirement.
c. Any line item with an extended
dealer net price of less than
$5.00.
d. Special order items.
ReTuRned goods poliCy
e. Electrical components.
f. Paint, chemicals, and lubricants.
g. Decals and paper products.
h. Items purchased in kits.
Return shipments will be accepted and
credit will be allowed, subject to the following
provisions:
liMiTaTion oF WaRRanTies
No warranties, express or implied, are
made in connection with the sale of parts or
trade accessories nor as to any engine not
manufactured by Multiquip. Such warranties
made in connection with the sale of new,
complete units are made exclusively by a
statement of warranty packaged with such
units, and Multiquip neither assumes nor
authorizes any person to assume for it
any other obligation or liability whatever in
connection with the sale of its products. Apart
from such written statement of warranty,
there are no warranties, express, implied or
statutory, which extend beyond the description
of the products on the face hereof.
1. A Returned Material Authorization
must be approved by Multiquip prior to
shipment.
7. The sender will be notified of any material
received that is not acceptable.
8. Such material will be held for five
working days from notification, pending
instructions. If a reply is not received
within five days, the material will be
returned to the sender at his expense.
2. To obtain a Return Material Authorization,
a list must be provided to Multiquip
Parts Sales that defines item numbers,
quantities, and descriptions of the items
to be returned.
9. Credit on returned parts will be issued
at dealer net price at time of the original
purchase, less a 15% restocking
charge.
a. The parts numbers and descriptions
must match the current parts price
list.
b. The list must be typed or computer
generated.
10. In cases where an item is accepted, for
which the original purchase document
can not be determined, the price will be
based on the list price that was effective
twelve months prior to the RMA date.
c. The list must state the reason(s)
for the return.
Effective: February 22, 2006
d. The list must reference the sales
order(s) or invoice(s) under
which the items were originally
purchased.
11. Credit issued will be applied to future
purchases only.
pRiCing and RebaTes
e. The list must include the name
and phone number of the person
requesting the RMA.
Prices are subject to change without prior
notice. Price changes are effective on a
specific date and all orders received on or
after that date will be billed at the revised price.
Rebates for price declines and added charges
for price increases will not be made for stock
on hand at the time of any price change.
3. AcopyoftheReturnMaterialAuthorization
must accompany the return shipment.
4. Freight is at the sender’s expense. All
parts must be returned freight prepaid to
Multiquip’s designated receiving point.
page 66 — MTX70HF RaMMeR • opeRaTion and paRTs Manual — Rev. #0 (03/08/12)
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MTX70HF RaMMeR • opeRaTion and paRTs Manual — Rev. #0 (03/08/12) — page 67
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OperatiOn and parts 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 2012, MULTIQUIP INC.
Multiquip Inc, the MQ logo and the Mikasa 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:
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