Multiquip Septic System ST 3050D User Manual

OPERATION AND PARTS MANUAL  
Multiquip  
Submersible Pump  
Model ST-3050D  
Revision #1 (11/18/02)  
MULTIQUIP INC.  
PARTS DEPARTMENT:  
18910 WILMINGTON AVENUE 800/427-1244  
CARSON, CALIFORNIA 90746 FAX:800/672-7877  
310-537-3700  
800/421-1244NATIONWIDE  
FAX: 310 - 537-3927  
SERVICE DEPARTMENT:  
800/478-1244  
FAX: 310 - 537- 4259  
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ST-3050D SUBMERSIBLE PUMP TABLE OF CONTENTS  
Here's How To Get Help ............................................2  
Table Of Contents .....................................................3  
Parts Ordering Procedures .......................................4  
Safety Message Alert Symbols .................................5  
Rules For safe Operation ..................................... 6-7  
Specifications (Pump) ...............................................7  
General Information ..................................................9  
ST-3050D Submersible  
Pump  
Components............................................................10  
Application (Float Switches)....................................11  
Control Boxes..........................................................12  
Control Box Installation (CB200).............................13  
230/460 VAC Voltage Selection ...............................14  
Pump Wiring Diagram .............................................15  
Transformer Wiring Diagram (CB200) ....................16  
Control Box Wiring Diagram (CB200) .....................17  
Three-Phase Power Installation (CB200) ......... 18-19  
Control Box Pre-Setup (CB200)........................ 20-21  
Control Box Installation (MP102/104) .....................22  
Control Box Wiring Diagram (MP102/104)..............23  
Operation .......................................................... 24-25  
Maintenance ...........................................................26  
Pump Troubleshooting/Performance Curve ............27  
Explanation Of Codes In Remarks Column ............28  
Suggested Spare Parts ...........................................29  
Electric Submersible Pump Assembly .............. 30-33  
Electric Motor Assembly.................................... 34-35  
Terms and Condition of Sale  
Parts .....................36  
ST-3050D — PARTS & OPERATION MANUAL — REV. 0 (11/18/02) — PAGE 3  
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PARTS ORDERING PROCEDURES  
Dealer account number  
Dealer name and address  
Shipping address (if different than billing address)  
Return fax number  
Applicable model number  
Quantity, part number and description of each part  
Specify preferred method of shipment:  
UPS Ground  
UPS Second Day or Third Day*  
UPS Next Day*  
Federal Express Priority One (please provide us with your Federal  
Express account number)*  
Airborne Express*  
Truck or parcel post  
*Normally shipped the same day the order is received, if prior to 2PM west coast time.  
Earn Extra Discounts when  
you order by FAX!  
All parts orders which include complete part numbers  
and are received by fax qualify for the following extra  
discounts:  
Number of  
line items ordered  
Additional Discount  
1-9 items  
3%  
10+ items**  
5%  
Get special freight allowances  
when you order 10 or more  
line items via FAX!**  
UPS Ground Service at no charge for freight  
Now! Direct TOLL-FREE access  
to our Parts Department!  
UPS Third Day Service at one-half of actual freight  
cost  
Toll-free nationwide:  
800-421-1244  
No other allowances on freight shipped by any other carrier.  
**Common nuts, bolts and washers (all items under $1.00 list price)  
do not count towards the 10+ line items.  
Toll-free FAX:  
*DISCOUNTS ARE SUBJECT TO CHANGE*  
800/6-PARTS-7 • 800-672-7877  
Fax order discount and UPS special programs revised June 1, 1995  
PAGE 4 — ST-3050D — PARTS & OPERATION MANUAL — REV. #1 (11/18/02)  
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ST-3050D SUBMERSIBLE PUMP— SAFETY MESSAGE ALERT SYMBOLS  
FORYOUR SAFETY ANDTHE SAFETY OF OTHERS!  
HAZARD SYMBOLS  
Rotating Parts  
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.  
NEVER operate equipment with covers,  
This Owner's Manual has been  
developed to provide complete  
instructions for the safe and efficient  
or guards removed. Keep fingers, hands,  
hair and clothing away from all moving  
parts to prevent injury.  
operation of the Multiquip Model  
ST-3050D Submersible Pump.  
Before using this pump, ensure  
that the operating individual has  
read and understands all  
instructions in this manual.  
Accidental Starting  
ALWAYS place the power source circuit  
breaker or ON/OFF switch in the OFF  
position, when the pump is not in use.  
SAFETY MESSAGE ALERT SYMBOLS  
The three (3) 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 three words: DANGER,  
WARNING, or CAUTION.  
Sight and Hearing hazard  
ALWAYS wear approved eye and  
hearing protection, if required.  
DANGER: You WILL be KILLED or  
SERIOUSLY injured if you do not follow  
directions.  
Respiratory Hazard  
WARNING: You CAN be KILLED or  
SERIOUSLY injured if you do not follow  
directions.  
ALWAYS wear approved respiratory  
protection, if required.  
Equipment Damage Messages  
CAUTION: You CAN be injured if you  
do not follow directions.  
Other important messages are provided throughout this manual  
to help prevent damage to your submersible pump, other property,  
or the surrounding environment.  
Potential hazards associated with the ST-3050D submersible  
pump operation will be referenced with Hazard Symbols which  
appear throughout this manual, and will be referenced in  
conjunction with Safety Message Alert Symbols.  
This submersible pump, other  
property, or the surrounding  
environment could be damaged if  
you do not follow instructions.  
ST-3050D — PARTS & OPERATION MANUAL — REV. 0 (11/18/02) — PAGE 5  
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ST-3050D SUBMERSIBLE PUMP RULES FOR SAFE OPERATION  
ALWAYS make sure submersible pump is grounded.  
CAUTION:  
NEVER use gas piping as an electrical ground.  
Failure to follow instructions in this manual may  
lead to serious injury or even death! This  
equipment is to be operated by trained and  
qualified personnel only! This equipment is for  
industrial use only.  
DO NOT place hands or fingers inside pump when pump is  
running.  
ALWAYS make certain that the voltage supplied to the pump  
is correct. Always read the pump's nameplate to determine  
what the power requirements are (230 or 460VAC 3 phase).  
The following safety guidelines should always be used when  
operating the ST-3050D Submersible Pump:  
DO NOT restrict the flow of the discharge hose as it may  
cause overheating.  
GENERAL SAFETY  
DO NOT operate or service this equipmen
before reading this entire manual.  
Be careful of discharge whipping under pressure.  
Make sure pump installation is accordance with national  
and local electrical codes.  
ALWAYS have a qualified electrician perform the pump  
wiring installation.  
This equipment should not be operated by persons under 18  
years of age.  
ALWAYS mount the control box in a vertical position  
protected from the elements.  
NEVER operate this equipment without proper  
protective clothing, shatterproof glasses, steel-toed  
boots and other protective devices required by the  
job.  
NEVER handle pump's AC power cord with wet hands.  
NEVER let an extension cord or plug connection lay in water.  
NEVER stand in water while AC power cord is connected  
to a power source.  
NEVER use a pump with a defective, frayed power cord.  
Check the power cord on the pump for cuts in the insulation.  
NEVER operate this equipment when not feeling  
NEVER use a extension cord that is frayed or damaged  
where the insulation has been cut.  
well due to fatigue, illness or taking medicine.  
ALWAYS make certain that proper extension cord has been  
selected for the job See Table 3.  
NEVER operate this equipment under the  
influence or drugs or alcohol.  
NEVER attempt to use the power cord as a lifting or lowering  
device for the submersible pump.  
When raising or lowering of the submersible pump is  
required, always attach an adequate rope or lifting device  
to the correct lifting point (handle) on the pump.  
NEVER use accessories or attachments, which are not  
recommended by Multiquip for this equipment. Damage to the  
equipment and/or injury to user may result.  
ALWAYS place the pump in an up-right position on a  
platform before using. The platform will prevent the pump  
from burrowing itself on soft sand or mud.  
Manufacture does not assume responsibility for any accident  
due to equipment modifications.  
NEVER operate pump on its side.  
Whenever necessary, replace nameplate, operation and safety  
decals when they become difficult read.  
DO NOT allow the pump to freeze in water.  
NEVER leave an open pump chamber unattended.  
ALWAYS check the machine for loosened threads or bolts  
before starting.  
The electrical voltage required to operate the pump can  
cause severe injury or even death through physical contact  
with live circuits. ALWAYS disconnect the electrical power  
from the pump before performing maintenance on the pump.  
NEVER operate the submersible pump in an explosive  
atmosphere or near combustible materials. An explosion or fire  
could result causing severe bodily harm or even death.  
PAGE 6 — ST-3050D — PARTS & OPERATION MANUAL — REV. #1 (11/18/02)  
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ST-3050D SUBMERSIBLE PUMP RULES FOR SAFE OPERATION  
ALWAYS make sure that electrical circuits are properly  
grounded per the National Electrical Code (NEC) and  
local codes before operating pump. Severe injury or death by  
electrocution can result from operating an ungrounded pump.  
. Emergencies  
ALWAYS know the location of the nearest fire extinguisher.  
NEVER use this pump to remove water from a swimming pool  
when people are in the water.  
ALWAYS be sure the operator is familiar with proper safety  
precautions and operations techniques before using  
submersible pump.  
ALWAYS check pump oil level only when pump is cool.  
Expansion due to heat may cause hot! oil to spray from the oil  
plug when the oil plug is removed.  
DO NOT attempt to thaw-out a frozen pump by using a torch  
or other source of flame. Application of heat in this manner  
may heat the oil in the seal cavity above the critical point,  
causing pump damage.  
ALWAYS know the location of the nearest and first aid kit.  
DO NOT pump water greater than 104 degrees Fahrenheit.  
Also DO NOT pump liquids containing acid or alkali.  
ALWAYS check the dual voltage connection inside the pump  
for proper voltage setting.  
In emergencies 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.  
ALWAYS check strainer before pumping. Make sure strainer  
is not clogged. Remove any large objects, dirt or debris from  
the strainer to prevent clogging.  
ALWAYS use a large basket strainer when pumping water  
that contain large debris.  
ALWAYS flush pump (clean) after use when pumping water  
concentrated with heavy debris. It is very important to always  
flush the pump before turning it off to prevent clogging.  
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.  
ALWAYS read, understand, and follow procedures in  
Operator’s Manual before attempting to operate equipment.  
Maintenance Safety  
NEVER lubricate components or attempt service on a running  
machine.  
ALWAYS allow the machine a proper amount of time to cool  
before servicing.  
Keep the machinery in proper running condition.  
Fix damage to the machine immediately and always replace  
broken parts.  
ST-3050D — PARTS & OPERATION MANUAL — REV. 0 (11/18/02) — PAGE 7  
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ST-3050D SUBMERSIBLE PUMP SPECIFICATIONS  
Table 1. Specifications (Pump)  
Model  
ST-3050D  
Type  
Submersible Trash Pump  
3.00 in. (76 mm.)  
Suction & Discharge Size  
270 gallons/minute  
(1,022 liters/minute)  
Maximum Pumping Capacity  
Max. Solids Diameter  
Max. Lift  
2.00 in. (51 mm.)  
25 ft. (7.62 meters)  
86 ft. (26.00 meters)  
5 HP (3.75 Kw)  
Max. Head  
Power  
Voltage Phase  
Starting Amps  
230/460 3ø  
Pump  
77 @ 230 VAC  
39 @ 460 VAC  
14.2 @ 230 VAC  
7.1 @ 460 VAC  
Running Amps  
Control Box Required  
Thermal Overload Protection  
Rotation  
Yes  
Yes  
Counter-Clockwise1  
180 cc. (.18 Liters)2  
Mechanical Oil Seal Capacity  
.012 -.025 in.  
(.304 - .635 mm.)  
Impeller Clearance  
RPM (Speed)  
3,550 30  
Power Cable Length  
25 FT. (7.62 Meters)  
Dimensions  
(Height X Diameter)  
10.2 x 26.8 in.  
(25.9 X 68 cm.)  
Dry Net Weight  
120 lbs. (54 Kg.)  
1.  
2.  
Motor Rotation – Upon start-up, the pump "kicks" in the opposite direction of motor rotation.The correct rotation is counter-  
clockwise (CCW) as viewed from the impeller end of the pump. Rotation direction for 3-phase pumps is changed by reversing  
two of the power leads.  
Mechanical Oil Seal – Use a good grade 10 weight non-detergent hydraulic oil (i.e.ShellTurbo 32 or equivalent).Fill oil cavity  
75% to 85% full (allow air space for expansion).  
PAGE 8 — ST-3050D — PARTS & OPERATION MANUAL — REV. #1 (11/18/02)  
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ST-3050D SUBMERSIBLE PUMP GENERAL INFORMATION  
This pump must always be positioned on a platform in an upright  
Introduction  
position. NEVER operate the pump by a suspended rope. To  
prevent large solids from entering the pump, install a wire mesh  
screen or similar barrier around the pump.  
The Multiquip Model ST-3050D submersible pump is designed  
to pump water and is used for the draining (de-watering) of  
swimming pools, well casings construction sites, cofferdams,  
manholes, transformer vaults and excavations.  
If the pump was used to pump water containing mud, silt, use  
clean water to flush out the pump after each use.  
A vortex type impeller is attached to the output shaft of a 5.0 HP  
electric motor which provides adequate power for general  
purpose pumping.This submersible pump is supplied complete  
with an electric power cable, and a discharge port located at the  
top of the pump which accepts a 3-inch hose.  
DO NOT allow the pump to run dry, as this will damage the  
pump. During maintenance, dry running is permissible but only  
for a few seconds.  
NEVER lift the pump by its electrical power cord. ALWAYS lift  
the pump by its carrying handle or attached a rope to carrying  
handle.  
This pump is ideal for portability because of its light weight and  
carrying handle. For reliability and long life, a mechanical seal  
provides shaft sealing, with an oil chamber separating the pump  
section from the motor.  
A pump fully submerged pump in liquid will not freeze, unless  
the liquid freezes. DO NOT allow a partially submerged pump to  
freeze.The expansion of water freezing in the volute may crack  
the pump, causing expensive repairs. If there is any danger of  
the pump being subjected to freezing temperatures, Lift the pump  
from water and allow it to drain thoroughly.  
The pump when in use, should be installed as free standing  
(upright position) on its strainer base. A 3-inch discharge hose  
(not supplied) should be connected to the discharge port located  
on top of the pump.The discharge hose should be adequately  
supported to avoid stress on the pump.  
If the pump jams or the pump rotor locks for any reason,  
disconnect the pump from the power source immediately.  
Allowing the pump motor to cycle ON and OFF under an overload  
condition can burn out the motor.  
For maximum water flow, the discharge hose should be kept as  
short as possible, and with minimum elevation above the pump.  
Remember as the length and/or height of the discharge hose is  
increased, the flow of water will be reduced. Also any reduction  
in the hose size, and any fittings such as valves or outlet nozzles,  
will restrict the water flow.  
When replacement of nuts and bolts is required, use only  
recommended parts as referenced in the parts section of this  
manual.This pump uses metric threads. DO NOT use english  
measurement threads.  
To avoid back-siphonage when the pump is switched off, ensure  
that the end of the discharge hose is installed above the water  
level at the final discharge point.  
When the pump is switched off, the water remaining in the hose  
will run back through the pump.This can be avoided by placing  
a non-return valve in the hose nearest the pump.  
NEVER use this submersible pump to pump flammable liquids  
or operate in a explosive or flammable environment.  
Avoid using this pump in conditions where mud, grit, silt or other  
debris are present.These conditions could cause blockage and  
cause excessive pump wear.  
DO NOT install the pump directly into an area where there is a  
heavy build-up of mud, grit, silt or debris. If this condition is present,  
install the pump on a platform before operating.  
ST-3050D — PARTS & OPERATION MANUAL — REV. 0 (11/18/02) — PAGE 9  
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ST-3050D SUBMERSIBLE PUMP COMPONENTS  
Figure 1. Submersible Pump Components  
Figures 1 shows the location of the basic components, for the  
ST-3050D Submersible Pump.Listed below is a brief explanation  
of each component.  
6.  
Carrying Handle – Always carry the submersible pump  
by its handle. NEVER! carry the pump by its power cord.  
Carrying or lifting the pump by the power cord, will cause  
undue stress on the cord, and ultimately the cord will  
become dislodged from the pump.  
1.  
Strainer Base This strainer base is made of stainless  
steel which is resistant to hardware corrosion. DO NOT  
pump large objects or debris with this pump.This pump is  
for pumping water only.For de-watering purposes, always  
place the strainer base on a platform.  
7.  
Thermal Overload Protection – This pump will require  
the use of an external control box with a thermal overload  
protection device that will shut-down the motor in the event  
of high operating temperatures.The motor will automatically  
restart once the temperature returns to an acceptable  
operating temperature.  
2.  
3.  
Volute/Impeller – Impellers are constructed of high-chrome  
ductile iron to minimizes wear and prolong service life.  
Electric Motor This unit utilizes a three-phase, 230/460  
VAC, 5.0 HP electric motor. Consult with a licenced  
electrician before connecting motor to a power source.  
Observe all city and local safety codes.  
8.  
9.  
Mechanical Oil Seal – This oil filled seal provides  
lubrication when running the pump dry. NEVER! run the  
pump dry. Running the pump dry will cause severe damage  
to the pump.  
4.  
5.  
Discharge Port – Connect a 3-inch hose to this port.  
Remember to adequately support the discharge hose to  
avoid stress on the pump.  
Mechanical Oil Seal Plug – Remove this plug to check  
and add hydraulic oil (Shell 32 or equivalent) to the oil  
cavity.This oil protects the mechanical seal.Oil cavity should  
be full enough to cover seal spring.  
AC Power Cable This unit is supplied with a 50 ft.(15.24  
meters) AC power cable. Always check the cable for signs  
of wear.NEVER! use a defective power cable.Replace the  
cable immediately if the cable is worn or defective.  
PAGE 10 — ST-3050D — PARTS & OPERATION MANUAL — REV. #1 (11/18/02)  
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ST-3050D SUBMERSIBLE PUMP APPLICATION (FLOAT SWITCHES)  
Float Switch Theory  
Float Switch (Dual)  
There is a tilt-sensitive mercury switch hermetically sealed within  
each float. As the liquid level (water) rises or falls, the float changes  
its angle until the mercury switch makes (close) or breaks (open)  
the circuit.  
Float switches (Figure 2) are used for the unattended operation  
of the submersible pump.The ST-3050D pump requires the use  
of a control box to perform this function. Shown in Figure 2 is an  
example of a dual float control switch application.  
The length of cord between the float and point of attachment  
determines the amount of water to be pumped.  
The Model ST-3050D submersible pump requires one each of  
the Model SW-1WOP float type mercury switches. These  
switches have a pumping range level between 5.5~18 feet  
(1.67~5.5 meters). All float switch connections are bare wire (no  
plug). The ST-3050D submersible pump must use the CB 200  
Control Box when float switches are required for the job  
application. The MCP102/104 control boxes do not have float  
switch capability.  
Contact Multiquip sales department to order float switches.  
CONTROL  
BOX  
EXTERNAL 3-PHASE  
(230 OR 460 VOLT)  
POWER SOURCE  
CAUTION!  
HIGH  
VOLTAGE!  
LIFTING  
ROPE  
CIRCUIT  
BREAKER  
CB200  
L1  
RED  
WHITE  
BLACK  
OFF  
MANUAL  
AUTO  
L2  
L3  
RESET  
ON  
AC  
AC  
POWER  
INPUT  
FLOAT  
SWITCH  
INPUTS  
POWER  
TO  
PUMP  
GROUND  
PUMP  
ON  
3-INCH  
DISCHARGE  
HOSE  
FLOAT  
SWITCHES  
PUMP  
OFF  
SUPPORT  
PLATFORM  
SUBMERSIBLE  
PUMP  
Figure 2. Dual Float Control Switch  
ST-3050D — PARTS & OPERATION MANUAL — REV. 0 (11/18/02) — PAGE 11  
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ST-3050D SUBMERSIBLE PUMP CONTROL BOXES  
Control Boxes  
CONTROL  
Control boxes (Figure 3) are available for remote control and  
thermal shut-down capability for the submersible pump.These  
water resistant control boxes provide electronic overload  
protection, watertight housing and glands to prevent water from  
leaking into the box, and a float switch interface.  
BOX  
CAUTION!  
HIGH  
VOLTAGE!  
There are various control box models to choose from, reference  
Table 2 for the model that meets your pumping requirements.  
CB200  
Contact Multiquip sales department to order control boxes as  
listed in Table 2.  
OFF  
MANUAL  
AUTO  
RESET  
ON  
AC POWER  
INPUT  
TO PUMP  
ALWAYS have a qualified  
licensed electrician perform the  
installation of the control box.  
FLOAT  
SWITCH  
INPUT  
NOTE  
Figure 3. Electrical Control Box (CB-200)  
Table 2. Control Box Speifications  
Thermal  
Overload  
Protection Capability  
Float  
Switch  
UL/CSA  
Listed  
Model No.  
VoltageType  
230/460 VAC  
Three-Phase  
CB200  
MCP102  
MCP104  
YES  
YES  
YES  
YES  
YES  
YES  
YES  
NO  
230 VAC  
Three-Phase  
460 VAC  
Three-Phase  
NO  
PAGE 12 — ST-3050D — PARTS & OPERATION MANUAL — REV. #1 (11/18/02)  
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ST-3050D SUBMERSIBLE PUMP/CTRL. BOX — INSTALLATION (CB200)  
POWER CORD REQUIREMENTS  
DANGER:  
When routing the three phase power via a power cord to the  
controlbox,ALWAYSusethecorrectwiresize.Pleasereference  
Table3below(CordLength/WireSize)todeterminethecorrect  
wiresize.Incorrectwire sizecanadverselyaffecttheperformance  
ofthepump.  
To place the ST-3050D submersible pump into operation  
requires the use of a control box.The control box contains the  
necessaryelectronics(electronicoverloadmodule,floatswitch  
connections and 230/460 voltage transformer) to operate the  
pump.Rememberthiscontrolboxcontainshazardousvoltages.  
Disconnect all sources of power before installing or servicing.  
There exists the possibility of electrocution, electric shock or  
burn, which can cause severe bodily harm or even death!  
TABLE 3. CORD LENGTH AND WIRE SIZES  
AMPS  
6
50 FT.  
100 FT.  
16 AWG  
14 AWG  
14 AWG  
14 AWG  
12 AWG  
12 AWG  
150 FT.  
14 AWG  
12 AWG  
12 AWG  
12 AWG  
10 AWG  
10 AWG  
16 AWG  
16 AWG  
16 AWG  
14 AWG  
14 AWG  
12 AWG  
8
CAUTION:  
10  
12  
14  
16  
This control box should only be installed or  
serviced by a licensed electrician or qualified  
personnel.  
CONTROL BOX MOUNTING  
Mountthecontrolboxinanuprightverticalposition.Makesure  
the control box is securely fastened to a flat surface, that is free  
of dust, dirt, moisture or any elements that may contaminate or  
erode the electronic components of the control box.  
FLOAT SWITCH INSTALLATION (CB200)  
1.  
Remove the float switch input connector housing, then  
route the float switch wires through the cable gland on the  
control box. Attach the wires to the float switch terminal  
block as indicated byTable 2. Reference Figures 7 and 8.  
3-Phase Power Installation (Input)  
The ST-3050D submersible pump requires 230/460 3-phase  
powerfornormaloperation.Thepumpisshippedfromthefactory  
inthe230 VAC configuration.Tochangethevoltagesettingfrom  
230 VAC to 460 VAC refer to the transformer wiring section on  
page 16.  
TABLE 4. FLOAT SWITCH CONNECTIONSS  
If you cannot determine what your pump's power  
requirements are, look at the vendor supplied identification  
name tag attached to the pump or please contact Multiquip's  
Service/Technical Assistance department.  
FLOAT SWITCH TERMINAL  
FLOAT SWITCH  
BLOCK NUMBER  
START  
STOP  
TERMINALS 1 AND 2  
TERMINALS 3 AND 4  
CAUTION:  
Applyingincorrect power (voltagephasing)  
to the submersible pump can cause severe  
damage to the pump. Please make sure that  
thecorrect voltageandphaseare transferred  
to the pump at all times.  
2.  
3.  
Tighten the connector housing to ensure a tight fit between  
the cord and the connector body.This will prevent the cable  
from pulling out of the terminal block and also prevent  
moisture from entering the control box..  
Determine the length of the float switch wires, then secure  
float switch wires to pump discharge hose.  
ST-3050D — PARTS & OPERATION MANUAL — REV. 0 (11/18/02) — PAGE 13  
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ST-3050D SUBMERSIBLE PUMP — 230/460VACVOLTAGE SELECTION  
230/460VACVoltage Selection  
3.  
Re-install the power cord gland assembly back into the  
pump's cavity. Make sure that the gland is seated correctly.  
This will prevent any connector pins from bending or  
breaking.  
The ST-3050D submersible pump is factory set at 230  
VAC. To change the voltage from 230 VAC to 460 VAC,  
perform the following:  
4.  
Insert the four retaining screws and tighten securely  
1.  
Remove the four retaining screws that secure the power  
cord gland assembly to the pump casing, and pull the 230  
VAC female plug (Figure 4) from the pump's cavity.  
2.  
Un-plug the 230 VAC female plug from the male motor  
windings plug and insert the 460 VAC female plug into  
male motor windings plug.  
Figure 4. 230/460 VAC Pump Voltage Selection  
PAGE 14 — ST-3050D — PARTS & OPERATION MANUAL — REV. #1 (11/18/02)  
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ST-3050D SUBMERSIBLE PUMP — PUMPWIRING DIAGRAM  
Figure 5. Pump Wiring Diagram  
ST-3050D — PARTS & OPERATION MANUAL — REV. 0 (11/18/02) — PAGE 15  
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ST-3050D SUB. PUMP/CTRL. BOX — TRANSFORMER WIRING (CB200)  
TRANSFORMER 230/460VOLTAGE SETTINGS  
WARNING:  
ALWAYS make sure that the transformer is set  
CAUTION:  
to the correct output voltage. Incorrect transformer  
output voltage settings can cause severe damage  
to the pump.  
Transformer 230/460 Voltage Settings:  
Pump motors are factory set at 230VAC.The  
transformer(Figure6)ofthiscontrolboxmust  
besettothevoltagerequirementsofthepump  
in use. Refer to the attached wiring diagram  
located inside the "Control Box" or reference Figures7 & 8.  
Usethetwosuppliedjumpertabstosetthetransformertothe  
required output voltage.  
Figure 6. Transformer AC Voltage Settings (Jumper Tabs)  
PAGE 16 — ST-3050D — PARTS & OPERATION MANUAL — REV. #1 (11/18/02)  
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ST-3050D SUB. PUMP/CONTRL. BOX — WIRING DIAGRAM (CB200)  
THREE PHASE WIRING  
EXTERNAL 3-PHASE  
(230 OR 460 VOLT)  
POWER SOURCE  
ELECTRONIC  
OVERLOAD UNIT  
TERMINALS  
CONNECTIONS  
M
O/L  
CIRCUIT  
BREAKER  
1
3
5
2
4
6
L1  
L2  
L3  
T1  
L1  
RED  
WHITE  
BLACK  
PUMP  
MOTOR  
T2  
T3  
L2  
L3  
H1  
H3  
H2  
H4  
CONTROL  
TRANSFORMER  
50VA CPT  
SEE FIGURE 1 FOR JUMPER SELECTION  
230 0R 460 VAC SELECTION.  
GROUND  
F1  
6
XF  
X1  
X2  
FUSE  
1/2 AMP  
ON  
INDICATOR  
LAMP  
OFF  
MANUAL  
AUTO  
5
1
1
7
1
G
11  
23  
12  
24  
CONTACTOR  
5 HP  
4
O/L  
1
3
7
6
M
A1  
96  
A2  
95  
14 13  
TERMINAL  
BLOCK  
WARNING  
ONLYALICENSED ELECTRICIAN  
NOTE:  
1. REFER TO PAGE 20 OF THIS MANUAL  
FOR THE CORRECT SETTING OF THE  
ELECTRONIC OVERLOAD UNIT.  
OR QUALIFIED PERSONNEL  
SHOULD PERFORM WIRING AND  
I N S TA L L AT I O N O F T H I S  
CONTROLPANEL.  
1
4
3
2
STOP  
FLOAT  
SWITCH  
START  
FLOAT  
SWITCH  
Figure 7. Control Box Wiring Diagram  
Float switch connections are for  
use with the CB200 Control Box  
only!  
ST-3050D — PARTS & OPERATION MANUAL — REV. 0 (11/18/02) — PAGE 17  
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ST-3050D SUB. PUMP/CTRL. BOX — 3Ø PWR. INSTALLATION (CB200)  
3-PHASE POWER CORD (INPUTTO BOX) INSTALLATION  
3-PHASE POWER INSTALLATION (OUTPUTTO PUMP)  
1.  
The three phase input power cord should have four wires. 1.  
Each wire is color coded. The colors are RED, WHITE,  
BLACK and GREEN.  
The three phase output power cord should have four wires.  
Each wire is color coded. The colors are RED, WHITE,  
BLACK and GREEN.  
2.  
Remove the 3-phase AC input connector housing from the 2.  
control box, then route the three phase input power cable  
through the cable gland on the control box. Attach the  
wires to the AC terminal block inside the control box as  
indicated by Table 5 and Figure 8.  
Remove the 3-phase AC output power connector housing  
on the control box, then route the three phase output power  
cable through the cable gland on the control box. Attach  
the wires to the AC terminal blocks on the electronic  
overload unit as indicated by Table 6 and Figure 8.  
TABLE 5. 3-PHASE AC INPUT POWER CONNECTIONS  
S
TABLE 6. 3-PHASE AC OUTPUT POWER CONNECTIONSS  
CABLE WIRE COLOR  
AC TERMINAL BLOCK #  
ELECTRONIC OVERLOAD  
CABLE WIRE COLOR  
UNIT TERMINAL BLOCK#  
RED  
L1  
L2  
RED  
2
WHITE  
BLACK  
GREEN  
WHITE  
BLACK  
GREEN  
4
6
L3  
GROUND  
3.  
Tighten the connector housing to ensure a tight fit between  
the power cord and the connector body. This will prevent  
the cable from pulling out of the terminal block and also  
prevent moisture from entering the control box.  
GROUND  
It is recommended that the power being supplied to the control  
box ALWAYS be connected to a circuit breaker or a quick  
disconnect switch.Thissafetyfeatureallowsforquickremoval  
of power from the control box in the event of an emergency.  
Electrical connections to the power  
source should only be performed by  
a licensed electrician or qualified  
personnel.  
NOTE  
4.  
Connect the other end of the 3-phase input power cord to  
the voltage source. Remember to provide a means of  
disconnecting the power from the control box (circuit breaker  
or quick disconnect switch). Also make sure to provide a  
good earth ground to the control box.  
PAGE 18 — ST-3050D — PARTS & OPERATION MANUAL — REV. #1 (11/18/02)  
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ST-3050D SUB. PUMP/CTRL BOX — 3Ø PWR. INSTALLATION (CB200)  
Figure 8.Three Phase  
Control Box/Pump System Diagram  
ST-3050D — PARTS & OPERATION MANUAL — REV. 0 (11/18/02) — PAGE 19  
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ST-3050D SUBMERSIBLE PUMP/CTRL. BOX — PRE SETUP (CB200)  
ELECTRONIC OVERLOAD UNIT SETTINGS  
ClassDialSetting  
1. Set the CLASS dial pointer (Figure 9) to the HAND position  
CAUTION:  
10.This controls the reset function only. It does not affect  
the ability of the pump to run with or without float switches.  
ElectronicOverloadUnit:Alwaysmakesurethat  
theelectronicunitsuppliedwiththecontrolboxisset  
to the correct amperage.This overload unit must  
MATCHtheamperagerequirementsofthepump  
motor.  
RESETOperation  
This electronic control unit has two modes of reset.The modes are  
definedasfollows:  
Usinganelectronicoverloadunitwithincorrectsettingsmayresultin  
serious damage to the pump. Refer to the Pump Amperage  
RequirementsTable (Table 7), for the correct overload amperage  
settings.  
MODE 1  
WhentheCLASSdialontheelectronicoverloadmodule isintheHAND  
position(manual)theresetbutton(Figure10)onthefrontofthecontrol  
boxmustbepushed toresettheunit(restorepower)intheeventof  
anoverload.  
TherearetwodialsontheElectronicOverloadUnit(Figure9)that  
require adjustment to meet the amperage requirement of the pump  
motorinuse.  
These dials are located on top of the overload unit and are labeled  
CLASSandFLC(A).  
Use a phillips-head screw driver to adjust the dials to the correct  
settings.  
Figure 10. Control Box Reset Button  
MODE 1  
FLC (A) Dial Setting  
WhentheCLASSdialontheelectronicoverloadmoduleisintheAUTO  
position (automatic mode) the unit will automatically be reset in the  
eventofanoverload  
1.  
Set the FLC (A) dial pointer (Figure 9) to the correct  
amperage for the pump motor in use. Use Table 7, to  
determine the correct amperage setting.  
NOTE  
All Multiquip control boxes should  
have the CLASS dial set to the HAND  
position 10.  
Figure 9. Electronic Overload Module  
Operation  
1.  
From the voltage source set the circuit breaker or quick  
disconnect switch to the ON position.  
TABLE 7. PUMP MOTOR AMPERAGE REQUIREMENTS  
S
Control  
Box  
Volts  
(VAC)  
Pump Model  
Amps  
14.2  
7.1  
Overload Unit  
AXE016-6.40-16A  
AXE016-6.40-16A  
2.  
For manual operation of the pump, place the 3-position  
operation switch (Figure 11) on the control box in the  
MANUAL position.  
ST3050D  
CB200  
CB200  
230  
460  
Three-Phase  
ST3050D  
Three-Phase  
Figure 11. Manual-Off-On SW. (Man Position)  
PAGE 20 — ST-3050D — PARTS & OPERATION MANUAL — REV. #1 (11/18/02)  
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ST-3050D SUBMERSIBLE PUMP/CTRL. BOX — PRE SETUP (CB-200)  
Shut-Down  
1. Place the 3-position operation switch on the control box to  
the OFF position (Figure 14).  
3.  
Verify that the ON indicator (Figure 12) on the control box  
is LIT.This means that power is being supplied to the control  
box.  
Figure 12. Control Box Power ON Indicator  
4.  
5.  
In the manual mode the pump will run continuously. Pay  
close attention when running the pump in this mode.  
DAMAGE to the pump may occur if pump is not immersed  
in water.  
Figure 14. Manual-Off-On SW. (OFF Position)  
2.  
3.  
Verify that the control box power ON light is OFF.  
Turn the circuit breaker or quick disconnect switch to the  
OFF position.  
To operate the pump automatically (float switches), place the  
3-position operation switch in the AUTO position (Figure 13).  
Figure 13. Manual-Off-On SW. (Auto Position)  
6.  
In the AUTO mode the pump will run as long as there is a  
sufficient amount of water.This amount is determined by  
the setting of the float switches. The stop float switch  
contacts will open when the water level is low and power  
will be removed from the pump's motor.  
Once the water level has risen back to the appropriate  
level the start float switch contacts will close and power  
will be restored to the pump's motor.  
ST-3050D — PARTS & OPERATION MANUAL — REV. 0 (11/18/02) — PAGE 21  
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ST-3050D SUB. PUMP/CTRL. BOX — INSTALLATION (MCP102/104)  
It is recommended that the power being supplied to the control  
DANGER:  
box ALWAYS be connected to a circuit breaker or a quick  
disconnectswitch.This safety feature allowsfor quick removal  
of power from the control box in the event of an emergency.  
4.  
Connect the other end of the 3-phase input power cord to  
the voltage source. Remember to provide a means of  
disconnecting the power from the control box (circuit breaker  
or quick disconnect switch). Also make sure to provide a  
good earth ground to the control box.  
Remember this control box contains hazardous voltages.  
Disconnect all sources of power before installing or servicing.  
There exists the possibility of electrocution, electric shock or  
burn, which can cause severe bodily harm or even death!  
ELECTRONIC OVERLOAD SETTING (230VAC, 3Ø)  
1.  
Using a small flat-blade screwdriver, set the  
amperage dial pointer on the electronic  
overload unit to 14.2 amps.  
Remember the MCP102 Control Box is to be used only for  
230 VAC 3-phase applications and the MCP 104 Control Box  
is for 460 VAC 3-phase applications. Neither control box has  
float switch capability.  
14.2  
POWER CORD REQUIREMENTS  
When routing the three phase power via a power cord to the  
controlbox,ALWAYSusethecorrectwiresize.Pleasereference  
Table 3 (Cord Length/Wire Size) to determine the correct wire  
size.Incorrectwire sizecanadverselyaffecttheperformanceof  
thepump.  
ELECTRONIC OVERLOAD SETTING (460VAC, 3Ø)  
1.  
Using a small flat-blade screwdriver,set the  
amperage dial pointer on the electronic  
overload unit to 7.1 amps.  
7.1  
CONTROL BOX MOUNTING  
Mountthecontrolboxinanuprightverticalposition.Makesure  
the control box is securely fastened to a flat surface, that is free  
of dust, dirt, moisture or any elements that may contaminate or  
erode the electronic components of the control box.  
3-PHASE POWER INSTALLATION (OUTPUTTO PUMP)  
1.  
The three phase output power cord should have four wires.  
Each wire is color coded. The colors are RED, WHITE,  
BLACK and GREEN.  
3-PHASE POWER CORD (INPUTTO BOX) INSTALLATION  
1.  
The three phase input power cord should have four wires.  
Each wire is color coded. The colors are RED, WHITE,  
BLACK and GREEN.  
2.  
Remove the 3-phase AC output power connector housing  
on the control box, then route the three phase output power  
cable through the cable gland on the control box. Attach  
the wires to the AC terminal blocks on the electronic  
overload unit as indicated by Table 6 and Figure 15.  
2.  
Remove the 3-phase AC input connector housing from the  
control box, then route the three phase input power cable  
through the cable gland on the control box. Attach the  
wires to the terminal block on the electronic overload unit  
inside the control box as indicated by Table5andFigure15.  
3.  
Tighten the connector housing to ensure a tight fit between  
the power cord and the connector body. This will prevent  
the cable from pulling out of the terminal block and also  
prevent moisture from entering the control box.  
PAGE 22 — ST-3050D — PARTS & OPERATION MANUAL — REV. #1 (11/18/02)  
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ST-3050D SUB. PUMP/CTRL. BOX WIRING DIAGRAM (MCP102/104)  
CONTROL  
BOX  
CONTROL  
BOX  
MOUNT CONTROL  
BOX IN AN UPRIGHT  
VERTICAL POSITION  
AS SHOWN.  
MCP104  
MCP102  
CAUTION  
CAUTION  
HIGH  
VOLTAGE  
HIGH  
VOLTAGE  
(460 VAC, 3Ø)  
(230 VAC, 3Ø)  
AC POWER  
INPUT  
AC POWER  
INPUT  
TO PUMP  
TO PUMP  
EXTERNAL 3-PHASE  
(230/460 VAC)  
POWER SOURCE  
MCP102/MCP104  
ELECTRONIC  
CIRCUIT  
BREAKER  
OVERLOAD  
UNIT  
L1  
RED  
WHITE  
BLACK  
1/L1  
3/L2  
5/L3  
L2  
L3  
TERMINAL  
BLOCK  
6 . 3  
4
STOP  
TEST  
START  
GROUND  
TERMINAL  
BLOCK  
SET TO  
14.2 AMPS  
2/T1  
4/T2  
6/T3  
WHITE  
RED  
BLACK  
WHITE  
3 PHASE  
AC INPUT  
POWER CABLE  
RED  
BLACK  
GREEN  
GREEN  
GROUND  
3 PHASE  
AC POWER  
INPUT  
3 PHASE  
AC POWER  
OUTPUT  
3 PHASE  
AC OUTPUT  
POWER CABLE  
WARNING  
INSTALLATION IS TO BE PREFORMED  
ONLY BY A LICENSED ELECTRICIAN  
OR QUALIFIED PERSONNEL.  
ST-3050D  
SUBMERSIBLE  
PUMP  
Figure 15. MCP102/104 Control Box Configurations  
ST-3050D — PARTS & OPERATION MANUAL — REV. 0 (11/18/02) — PAGE 23  
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ST-3050D SUBMERSIBLE PUMP OPERATION  
Operation  
2. Makesurethepumpisalwaysplacedinanuprightposition,  
not tilted (Figure 17). Never position the pump directly on a  
soft,loosebottom.Remembertoattainmaximumpumping  
capacityandpreventexcessivewear, positionthepumpso  
it will not burrow itself into sand or clay.  
1. Attach a suitable lifting cable (rope) to the carrying handle  
(Figure16)onthepumpandlowerthepumpintoplace.For  
applicationswherethereisanexcessiveamountofmud,grit  
or silt, the use of a support platform is desirable. When  
pumpingwaterfromswimmingpooltypeapplicationswhere  
thereislittleornodebris,thesupportplatformisnotrequired.  
POWER  
CORD  
LIFTING  
ROPE  
3-INCH  
DISCHARGE  
HOSE  
CARRYING  
HANDLE  
SUPPORT  
SUBMERSIBLE  
PLATFORM  
PUMP  
Figure 17. Submersible Pump Upright Position  
(Incorrect)  
3. After the pump has been positioned correctly into place,  
power can be applied to the pump's electric motor.  
Figure 16. Submersible Pump Upright Position  
(Correct)  
PAGE 24 — ST-3050D — PARTS & OPERATION MANUAL — REV. #1 (11/18/02)  
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ST-3050D SUBMERSIBLE PUMP OPERATION  
4. NEVER!grabortouchalivepowercord (Figure18)withwet  
Pump Shut-Down/Clean-up  
hands,thepossibilityexistsofelectricalshock,electrocu-  
tion and even death.  
1. Remove the power from the pump by turning off the circuit  
breakerorswitchthatprovidespowertothepump.Remem-  
bertomakesurethathandsaredry(notwet),andfeetarenot  
standinginwaterwhenremovingdisconnectingpowerfrom  
thepump.  
WET  
HANDS  
2. Usingtheliftingrope,liftthepumpupfromitscurrentposition.  
Removethedischargehosefromthedischargeportonthe  
pump.  
3. Removeallpowercablesandfloatswitchesfromthecontrol  
box. Placecablesandfloatswitchesinasuitablecontainer  
where they will not get damaged.  
POWER  
CORD  
(POWER ON)  
4. Ifthepumpwasusedtopumpmud,gritorsilt,flush vigorously  
with clean water.  
5. Removethepumpfromthewater.Wipeoffanymudordebris  
that might have attached itself to the pump.  
Figure 18. Power Cord (Wet Hands)  
6. Store pump in a clean dry place away from dirt and debris.  
DANGER:  
NEVER! grab or touch a live power cord. DO  
NOT stand in water when connecting the  
pump's power cord into a voltage source.The  
possibility exist of electrical shock, electrocution  
and possibly death!  
3. If all of the pump's electrical requirements have been met,  
insert the power plug on the pump into the power source  
receptacle.  
4. Waitafewsecondsandwatershouldbegintoflowfromthe  
dischargehose.  
5. Ifwaterisnotflowingfromthedischargehoseornotflowing  
freelyafterafewminutes,removethepowerfromthepump  
and check the system for leaks.  
ST-3050D — PARTS & OPERATION MANUAL — REV. 0 (11/18/02) — PAGE 25  
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ST-3050D SUBMERSIBLE PUMP MAINTENANCE  
LUBRICATION  
5. If oil level is low fill with SAE 10 weight non-detergent  
hydraulicoil(i.e.ShellTurbo32 orequivalent). Filloilcavity  
75% to 85% full (allow air space for expansion). Pump oil  
cavity capacity is approximately 180 cc.  
To check the oil level of the mechanical seal perform the  
following:  
1. Lay the pump (Figure 19) on its side with the oil plug facing  
upwards.  
IMPELLER  
1. Make sure the clearance between the impeller and the  
friction disk is approximately .012 - .020 inches (.304 - .508  
mm.)  
2. Remove oil fill plug.  
3. Visually inspect oil plug hole to verify that oil cavity is full  
enoughtocoversealspring.Checkevery300hours,change  
hydraulic oil every 6 months (1,000 hours) or as needed.  
2. Ifimpellerisdefectiveorbadlyworn,replaceimpellerimme-  
diately.  
4. While checking the hydraulic oil level, also check the  
condition of the hydraulic oil in the seal cavity . Block the  
opening with a finger and roll pump to one side to drain  
oil into a small transparent container.If oil is cloudy or has  
water in it, drain oil from pump cavity and replace hydrau-  
lic oil. Check the seal for wear damage.  
Figure 19. Checking Hydraulic Oil  
PAGE 26 — ST-3050D — PARTS & OPERATION MANUAL — REV. #1 (11/18/02)  
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ST-3050D SUBMERSIBLE PUMP TROUBLESHOOTING  
TABLE X. PUMP TROUBLESHOOTING  
SYMPTOM  
POSSIBLE PROBLEM  
SOLUTION  
Check that proper voltage (230/460 3Ø) is being supplied to the  
pump. Also check that there is an adequate amount of current  
(amps) to run the pump. Check power source circuit breaker.  
Incorrect voltage/amps?  
If using float switches check wiring, inspect power cord.  
Replace fuse, check cause of blown fuse.  
Check electrical connections?  
Blown power fuse?  
Pump Fails To Start  
Disconnect power cord and check for clogging and improper impeller  
clearance. Unclog pump. Check overload protection device.  
Impeller locked?  
Use multimeter to check motor insulation. Insulation resistance must  
be approximately 15 megaohms. If resistance is low, disassemble  
pump motor and bake windings to dry them.  
Wet motor windings?  
Defective motor and pump  
bearings?  
Check for excessive bearing wear, if worn replace bearings. Replace  
motor if defective.  
Twisted or restricted discharge  
hose?  
Lay hose flat un-kinked. Remove clog from hose line.  
Clean strainer.  
Clogged pump strainer?  
Pump Fails to Deliver Full  
Output  
Use a voltmeter to check voltage while pump is energized. Voltage  
must be within 10%. Check power source (no load and load). If an  
extension cord is used, make sure it has adequate current-carrying  
capacity for the required length.  
Low voltage?  
Impeller worn?  
Replace impeller.  
Replace water seal.  
Tighten securely.  
Defective water seal?  
Loose Oil Fill Plug?  
Water in Seal Oil  
Performance Curve  
90  
TOTAL HEAD  
Max 86 ft  
CAPACITY  
Figure 20.  
Performance Chart  
Max 264 G.P.M  
60  
30  
Capacity(US.G.P.M)  
0
100  
200  
300  
ST-3050D — PARTS & OPERATION MANUAL — REV. 0 (11/18/02) — PAGE 27  
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EXPLANATION OF CODE IN REMARKS COLUMN  
How to read the marks and remarks used in this parts  
book.  
Items Found In the “Remarks” Column  
Serial Numbers-Where indicated, this indicates a serial  
number range (inclusive) where a particular part is used.  
Model Number-Where indicated, this shows that the  
corresponding part is utilized only with this specific model  
number or model number variant.  
Items Found In the “Items NumberColumn  
All parts with same symbol in the number column, , #,  
, belong to the same assembly or kit.  
+
, %, or  
*
PAGE 28 — ST-3050D — PARTS & OPERATION MANUAL — REV. #1 (11/18/02)  
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ST-3050D — SUGGESTED SPARE PARTS  
ST-3050D SUBMERSIBLE PUMP 1 TO 3 UNITS  
1 to 3 Units  
Qty......... P/N.............................. Description  
1 ............ 0203050120 ................ AC CORD W/CORD GLAND  
1 ............ 0203050060 ................ MECHANICAL SEAL  
1 ............ 0203050081 ................ OIL SEAL  
1 ............ 0203050047 ................ LINER  
1 ............ 0203050003 ................ IMPELLER  
1 ............ 0202020004 ................ IMPELLER NUT  
2 ............ 0203050214 ................ PACKING  
1 ............ 0202020157 ................ PACKING  
1 ............ 0202020435 ................ PACKING  
1 ............ 0202020435 ................ SPRING WASHER  
ST-3050D — PARTS & OPERATION MANUAL — REV. 0 (11/18/02) — PAGE 29  
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ST-3050D — ELECTRIC SUBMERSIBLE PUMP ASSY.  
ELECTRIC SUBMERSIBLE PUMP ASSY.  
PAGE 30 — ST-3050D — PARTS & OPERATION MANUAL — REV. #1 (11/18/02)  
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ST-3050D — ELECTRIC SUBMERSIBLE PUMP ASSY.  
ELECTRIC SUBMERSIBLE PUMP ASSY.  
NO  
1
2
3
4
5
6
31  
32  
33  
47  
53  
60  
65  
81  
102  
103  
104  
116  
119  
119  
120  
121  
127  
128  
146  
147  
148  
156  
157  
160  
174  
188  
191  
192  
PART NO  
PART NAME  
CASING  
QTY.  
1
1
1
1
1
1
4
4
4
1
1
1
1
1
1
1
REMARK  
0203050001  
0203050002  
0203050003  
0202020004  
0202020005  
0203050006  
0202020031  
0202020032  
0202020033  
0203050047  
0202020053  
0203050060  
0202020065  
0203050081  
0203050102  
0203050103  
0203050104  
0202020116  
0203050119  
0203050D119  
0203050120  
0202020121  
0202020127  
0202020128  
0203050146  
0203050147  
0203050148  
0203050156  
0202020157  
0203050160  
0203050174  
0203050188  
0202020191  
0202020192  
FRICTION DISC.  
IMPELLER  
IMPELLER NUT  
SPRING WASHER  
IMPELLER KEY  
STUD BOLT  
NUT  
WASHER  
LINER  
WASHER  
MECHANICAL SEAL  
PLUG  
OIL SEAL  
DISCHARGE PORT  
PACKING  
STUD BOLT  
BOLT  
MOTOR ........................................ 1 .................... ST-3050  
MOTOR ........................................ 1 .................... ST-3050D  
AC CORDW/CORD GLAND  
CORD CLAMP  
CARRYING HANDLE  
BOLT  
2
3
1
1
1
2
1
4
4
1
1
1
1
4
1
4
1
1
STRAINER  
STUD BOLT  
SPRING WASHER  
HEAD COVER  
PACKING  
SLEEVE  
OUTER PIPE  
STRAINER SET PIPE  
POWER CORD GLAND CASE  
BOLT  
PACKING  
PACKING  
214-1 0203050214  
214-2 0203050214  
ST-3050D — PARTS & OPERATION MANUAL — REV. 0 (11/18/02) — PAGE 31  
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ST-3050 D— ELECTRIC SUBMERSIBLE PUMP ASSY.  
PAGE 32 — ST-3050D — PARTS & OPERATION MANUAL — REV. #1 (11/18/02)  
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ST-3050D — ELECTRIC SUBMERSIBLE PUMP ASSY.  
ELECTRIC SUBMERSIBLE PUMP ASSY.  
NO  
222  
224  
431  
434  
435  
436  
437  
438  
439  
440  
441  
442  
443  
444  
613  
614  
615  
616  
617  
618  
619  
PART NO  
PART NAME  
NUT  
PLUG  
NUT  
STUFFING BOX  
PACKING  
SPRING WASHER  
CORD GLAND CASE COVER  
BOLT  
PACKING  
CONNECTOR  
PACKING  
BOLT  
WASHER  
BOLT  
CONNECTOR CASE  
BOLT  
PACKING  
PLUG  
GLAND RUBBER  
GLAND METAL  
BOLT  
CONNECTOR  
CONNECTOR  
QTY.  
4
1
2
1
1
2
1
3
1
1
1
3
3
2
1
4
1
1
1
1
3
1
1
REMARK  
0203050222  
0202020224  
0203050431  
0203050434  
0202020435  
0202020436  
0202020437  
0202020438  
0202020439  
0202020440  
0202020441  
0202020442  
0202020443  
0202020444  
0203050D613  
0203050D614  
0203050D615  
0203050D616  
0203050D617  
0203050D618  
0203050D619  
ST-3050D  
ST-3050D  
ST-3050D  
ST-3050D  
ST-3050D  
ST-3050D  
ST-3050D  
ST-3050D  
ST-3050D  
620-1 0203050D620A  
620-2 0203050D620B  
ST-3050D — PARTS & OPERATION MANUAL — REV. 0 (11/18/02) — PAGE 33  
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ST-3050D — ELECTRIC MOTOR ASSY.  
ELECTRIC MOTOR ASSY.  
PAGE 34 — ST-3050D — PARTS & OPERATION MANUAL — REV. #1 (11/18/02)  
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ST-3050D — ELECTRIC MOTOR ASSY.  
ELECTRIC MOTOR ASSY.  
NO  
131  
132  
268  
269  
270  
273  
322  
540  
541  
606  
607  
608  
PART NO  
PART NAME  
QTY.  
REMARK  
0203050131  
0202020B132  
0203050268  
0203050269  
0203050270  
0203050D273  
0202020B322  
0203050540  
0203050541  
0203050606  
0203050607  
0202020B608  
BOLT  
4
4
1
1
1
1
4
1
1
1
1
1
WASHER, LOCK  
MOTOR A BRACKET  
MOTOR B BRACKET  
MOTOR ROTOR  
MOTOR STATOR  
NUT  
A PACKING  
B PACKING  
A BEARING, MOTOR  
B BEARING, MOTOR  
WASHER, WAVE  
ST-3050D — PARTS & OPERATION MANUAL — REV. 0 (11/18/02) — PAGE 35  
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Effective: October 1, 2002  
TERMS AND CONDITIONS OF SALE — PARTS  
PAYMENT TERMS  
5. Partsmustbeinnewandresalablecon- Multiquipreservestherighttoquoteandsell  
dition,intheoriginalMultiquippackage(if directtoGovernmentagencies,andtoOriginal  
any), and with Multiquip part numbers Equipment Manufacturer accounts who use  
Terms of payment for parts are net 10 days.  
FREIGHTPOLICY  
clearlymarked.  
our products as integral parts of their own  
products.  
All parts orders will be shipped collect or  
prepaidwiththechargesaddedtotheinvoice.  
All shipments are F.O.B. point of origin.  
Multiquip’sresponsibilityceaseswhenasigned  
manifesthasbeenobtainedfromthecarrier,  
andanyclaimforshortageordamagemustbe  
settledbetweentheconsigneeandthecarrier.  
6. Thefollowingitemsarenotreturnable:  
SPECIALEXPEDITINGSERVICE  
a. Obsolete parts. (If an item is in the  
price book and shows as being re- A$35.00surchargewillbeaddedtotheinvoice  
placedbyanotheritem,itisobsolete.) forspecialhandlingincludingbusshipments,  
insuredparcelpostorincaseswhereMultiquip  
mustpersonallydeliverthepartstothecarrier.  
(such as gaskets, seals, “O” rings,  
b. Any parts with a limited shelf life  
andotherrubberparts)thatwerepur- LIMITATIONSOFSELLER’SLIABILITY  
MINIMUMORDER  
chasedmorethansixmonthspriorto  
thereturndate.  
Multiquip shall not be liable hereunder for  
damagesinexcessofthepurchasepriceofthe  
The minimum charge for orders from Mul-  
tiquipis$15.00net.Customerswillbeasked  
for instructions regarding handling of orders  
notmeetingthisrequirement.  
c. Anylineitemwithanextendeddealer item with respect to which damages are  
netpriceoflessthan$5.00.  
claimed, and in no event shall Multiquip be  
liable for loss of profit or good will or for any  
otherspecial,consequentialorincidentaldam-  
ages.  
d. Special order items.  
RETURNEDGOODSPOLICY  
e. Electricalcomponents.  
f. Paint,chemicals,andlubricants.  
g. Decalsandpaperproducts.  
h. Itemspurchasedinkits.  
Returnshipmentswillbeacceptedandcredit  
willbeallowed,subjecttothefollowingprovi-  
sions:  
LIMITATIONOFWARRANTIES  
Nowarranties,expressorimplied,aremade  
in connection with the sale of parts or trade  
accessoriesnorastoanyenginenotmanufac-  
tured by Multiquip. Such warranties made in  
connectionwiththesaleofnew,completeunits  
are made exclusively by a statement of war-  
rantypackagedwithsuchunits,andMultiquip  
neitherassumesnorauthorizesanypersonto  
assume for it any other obligation or liability  
whatever in connection with the sale of its  
products.Apartfromsuchwrittenstatementof  
warranty, there are no warranties, express,  
impliedorstatutory,whichextendbeyondthe  
descriptionoftheproductsonthefacehereof.  
1. AReturnedMaterialAuthorizationmust  
be approved by Multiquip prior to ship-  
ment.  
7. Thesenderwillbenotifiedofanymaterial  
receivedthatisnotacceptable.  
2. ToobtainaReturnMaterialAuthorization,  
alistmustbeprovidedtoMultiquipParts  
Salesthatdefinesitemnumbers,quanti-  
ties, and descriptions of the items to be  
returned.  
8. Suchmaterialwillbeheldforfiveworking  
days from notification, pending instruc-  
tions.Ifareplyisnotreceivedwithinfive  
days,thematerialwillbereturnedtothe  
senderathisexpense.  
a. Thepartsnumbersanddescriptions  
must match the current parts price  
list.  
9. Creditonreturnedpartswillbeissuedat  
dealer net price at time of the original  
purchase,lessa15%restockingcharge.  
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  
basedonthelistpricethatwaseffective  
twelvemonthspriortotheRMAdate.  
c. The list must state the reason(s) for  
thereturn.  
d. The list must reference the sales  
order(s)orinvoice(s)underwhichthe  
itemswereoriginallypurchased.  
11. Credit issued will be applied to future  
purchasesonly.  
e. The list must include the name and  
phonenumberofthepersonrequest-  
ingtheRMA.  
PRICINGANDREBATES  
Prices are subject to change without prior  
notice.Pricechangesareeffectiveonaspe-  
cificdateandallordersreceivedonorafterthat  
datewillbebilledattherevisedprice.Rebates  
3. AcopyoftheReturnMaterialAuthoriza-  
tionmustaccompanythereturnshipment.  
4. Freight is at the sender’s expense. All forpricedeclinesandaddedchargesforprice  
partsmustbereturnedfreightprepaidto increaseswillnotbemadeforstockonhand  
Multiquip’sdesignatedreceivingpoint.  
atthetimeofanypricechange.  
PAGE 36 — ST-3050D — PARTS & OPERATION MANUAL — REV. #1 (11/18/02)  
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NOTE PAGE  
ST-3050D — PARTS & OPERATION MANUAL — REV. 0 (11/18/02) — PAGE 37  
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PARTS AND OPERATION MANUAL  
HERE'S HOW TO GET HELP  
PLEASE HAVE THE MODEL AND SERIAL NUMBER  
ON-HANDWHEN CALLING  
PARTS DEPARTMENT  
800/427-1244 or 310/537-3700  
FAX: 800/672-7877 or 310/637-3284  
SERVICE DEPARTMENT  
800/478-1244 or 310/537-3700  
FAX: 310 - 537-4259  
WARRANTY DEPARTMENT  
800/421-1244, EXT. 279 or 310/537-3700  
FAX: 310 - 537-1173  
MAIN  
800/421-1244 or 310/537-3700  
FAX: 310 - 537-3927  
MULTIQUIP INC.  
PARTS DEPARTMENT:  
18910 WILMINGTON AVENUE 800/427-1244  
CARSON, CALIFORNIA 90746 FAX:800/672-7877  
310-537-3700  
800/421-1244NATIONWIDE  
FAX: 310 - 537-3927  
SERVICE DEPARTMENT:  
800/478-1244  
FAX: 310 - 537- 4259  
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