TM 10 -461 0232-12
4-43.1. BOOSTER PUMP AND MOTOR ASSEMBLY. This task covers: (MODEL ROWPU-1 ONLY)
Tools, see Appx B, Sec III, Ref Code (No.):
Tool Kit, General Mechanics Automotive (1)
ROWPU shutdown, basket strainer and piping
drained down below level of booster pump,
Lt.hing Equipment (8)
chemical injection pumps removed (para. 4-36),
Electrical Repair Kit (16)
booster pump cover removed (para. 4-42).
Access panel removed (para. 4-74).
Tape, Electrical (Appx E. Sec II, Item 68)
Personnel Required: 2
Tape, Friction (Appx E, Sec II, Item 69)
General Safety Instructions:
Twine (Appx E. Sec II, Item 72)
Varnish, Electrical (Appx E, Sec II, Item 73)
Observe specific Warning in text.
Gaskets (TM 10-4610-232-24P)
Lockwashers (TM 10-4610-232-24P)
Washers (TM 10-4610-232-24P)
The booster pump is too heavy to be carried manually. Use proper lifting equipment.
Make sure electrical power is disconnected before working on unit. Failure to do so could result in
serious injury from electrical shock or moving pans.
(Refer to Figure 4-47.1, sheet 1). Close feed valve V14 (53) and cleaning bypass valve V13 (54).
Remove clamp (55), clamp (56), and clamp (57).
Remove dual strainer system (58) as an assembly.
Disconnect booster pump motor power cable (33).
Remove four lockwashers (2), flat washers (3), and capscrews (1) holding bracket (7) to floor. Remove four
capscrews (4), lockwashers (5), flat washers (6) and remove bracket (7).
Loosen tubing nut and remove tubing (8).
Remove two clamps (50) and two gaskets (51).
Some ROWPUs may not have spacer (1 4A),
Remove four capscrews (12), four lockwashers (13), four flat washers (14), spacer (14A), pipe section (52), and
expansion joint (15).
Loosen nuts (16) and remove drain line (17).
Remove four capscrews (18), lockwashers (19), flat washers (20), nuts (21) and flat washers (22).
Remove four capscrews (24), lockwashers (25), flat washers (26) and rubber washers (27). Remove pump
assembly (28) and gasket (23).
Remove four rubber washers (29), mounts (30) and rubber gaskets (31).
To avoid injury, two personnel are required to lift pump. Pump weighs over 50 lbs.
Use lifting chain hoist to remove booster pump from van.
4-182.2 Change 7