SERVICE AND OPERATING MANUAL
Model FR12SPA1.5 Portable
Submersible Dewatering Pump
Design Level 3
OPERATING INSTRUCTIONS
THE PUMP: This pump is a totally enclosed, submersible dewatering unit. It is powered by a 1/3 HP, 12 volt DC 30 AMP
motor. Battery clips on the power cord allow easy connection to any 12 volt vehicle battery.
SWITCHING: The on-off switch is located on the power cord.
CONNECTING TO BATTERY: When connecting the clips to a battery, arcing is eliminated by keeping the on-off switch
in the “off” position. Connect the red battery clamp to the positive (+) battery terminal. Connect the black battery clamp to
ground: preferably on the vehicle’s engine to a solid, metallic, stationary point. The connection
should be at least 18 inches (480mm) from the battery.
HOSE: Since the pump develops relatively low pressure, it is recommended that non-collapsible hose be used for maxi-
mum pumping rates.
HOISTING & LOWERING: Attach a line to the metal handle on the top of the pump for hoisting or lowering the unit. Do
not use power cable for handling unit.
TO OPERATE: Lower unit into liquid to be pumped and activate switch. Pump can be run for a few minutes without
liquid, however, do not run completely dry for extended periods. Damage to shaft seal may result.
RUNNING TIME: This unit draws about 30 amperes and can be operated about 1hour on a fully charged 55 AMP-hour
battery and still permit starting of
vehicle under normal conditions. Caution should be used when running time
exceeds 30 or 40 minutes without engine running to recharge battery, particularly in cold weather when battery efciency is
lowered. Battery size (AMP-hour rating) and the use of other accessories such as lights and radios, etc., must be taken into
consideration for practical running periods without engine running.
OVERLOAD PROTECTION is provided by means of a 40 amp automatic reset circuit breaker, located under top cover.
Tuthill Corporation • 8825 Aviation Drive, Fort Worth, Indiana 46809 • Telephone: (800) 634-2695 • Fax: (800) 688-1793 • www.llrite.com
fr12spa1.5sm-rev0913 Model FR12SPA1.5 Design Level 3 Page 1
TROUBLE SHOOTING
NOTE: Most common cause of failure to run is due to hardened mud and sand at impeller. Remove strainer to check.
MOTOR WILL NOT RUN:
1. Poor connection at battery.
2. Impeller locked with foreign material.
3. Insufcient impeller clearance.
4. Damaged power cable or loose connection internally in motor assembly.
5. Bad switch or circuit breaker. Connect power leads direct to motor leads to check.
6. Worn motor brushes or out of position to make contact with armature.
PERFORMANCE LOW:
1. Strainer screen partially plugged.
2. Impeller rubbing. Check freeness of rotation with screwdriver inserted through hole in base plated into slotted end of
shaft.
3. Battery not fully charged.
4. Discharge restriction such as kinked hose or excessive discharge head.
Motor runs backwards:
1. Check wiring for correct polarity.
SERVICE AND REPAIR INSTRUCTION
DISASSEMBLY: Impeller and shaft seal can be inspected and serviced from lower end of pump by removal of 4 cap-
screws securing base plate, strainer screen, and suction cover. Screwdriver slot is provided in end of motor shaft to turn shaft
while holding impeller for removal. This permits removal of impeller without
disassembly of upper motor housing to hold motor shaft. Alternately, there is a shaft extension with two ats on the rear of the
motor for use when the impeller is difcult to remove. The upper motor cover must be removed to expose this shaft extension.
To service motor remove 4 hex nuts and bump top cover free from housing tube. Raise sufciently to disconnect power
cable connections. Slide housing tube up from pump casing and motor will be exposed for service or removal.
When servicing the and replacing the impeller or suction cover follow these instructions:The impeller has been revised to
typically require 1 shim (previously 7). The suction cover has been revised to require 1 gasket.
IMPORTANT: Make certain that wire leads are installed per diagram below.
Install top cover as indicated by arrow and instruction on top of cover. Make sure wires do not contact motor shaft when
installing motor cover.
Circuit Breaker
Red
Motor
Black
Twist Clamp
IMPORTANT
Read these safety
warnings and
instructions in this
manual completely,
before installation and start-up of the pump.
It is the responsibility of the purchaser to
retain this manual for reference. Failure to
comply with the recommendations stated
in this manual will damage the pump, and
void factory warranty.
Aux Batt
Compression Lug
Black Battery
Clamp
CAUTION
Before pump
operation, inspect all
gasketed fasteners
for looseness caused
by gasket creep.
Re-torque loose fasteners to prevent
leakage. Follow recommended torques
stated in this manual.
Red Battery
Clamp
Switch
(Ground)
WARNING
Airborne particles and
loud noise hazards.
Wear ear and eye
protection.
Model FR12SPA1.5 Design Level 3 Page 2 fr12spa1.5sm-rev0913
SERVICE AND OPERATING MANUAL
Model FR12SPA1.5 Portable
Submersible Dewatering Pump
Design Level 3
ITEM TOTAL
NO. PART NUMBER DESCRIPTION RQD.
1 FS001182-000 Screw, Self-Tapping 2
2 MF001164-000 Cover, Motor 1
3 FS001183-000 Hex Nut 1
4 MF001165-000 Handle 1
5 FS001184-000 Nut, Gland 2
6 MF001166-000 Spacer, Gland 2
7 SL001167-000 Ring, Sealing 2
8 FS001185-000 Hex Nut 4
9 FS001186-000 Lock Washer 4
10 FS001187-000 Stud 4
11 EL001171-000 Circuit Breaker 1
12 FS001188-000 Capscrew, Hex Head 4
13 FS001189-000 Lock Washer 8
14 SL001168-000 Gasket, Casing 1
15 FS001190-000 Capscrew, Hex Head 4
16 MF001173-000 Impeller 1
17 MF001174-000 Shim As. Req.*
18 MF001175-000 Cover, Suction 1
19 MF001176-000 Plate, Strainer 1
20 MF001177-000 Screen, Strainer 1
21 MF001178-000 Casing, Volute, 1½ NPT 1
MF001179-000 Casing, Volute, 1½ BSPT (tapered) 1
22 SL001169-000 O-Ring 2
23 SL001170-000 Seal 1
24 MF001180-000 Tube, Casing 1
25 EL001193-000 Motor 1
26 EL001194-000 Clamp, Cable 1
27 FS001191-000 Screw, Machine 1
28 EL001195-000 Power Cable Assembly Complete 1
29 FS001192-000 Washer, Lock 1
30 MF001181-000 Lug, Compression 1
31 EL001196-000 Nut, Insulated Wire 1
* Typically 1
fr12spa1.5sm-rev0913 Model FR12SPA1.5 Design Level 3 Page 3
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27
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Model FR12SPA1.5 Design Level 3 Page 4 fr12spa1.5sm-rev0913
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