ARMY TM 10-4610-309-14
MARINE CORPS TM 10802A-14/1
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TACTICAL WATER PURIFICATION SYSTEM (TWPS)
UNIT MAINTENANCE PROCEDURES
PRODUCT WATER DISTRIBUTION SYSTEM
2. Remove the pump from the diesel engine (P-8 Pump skid) or remove the pump from the motor
(P-7 Pump skid) as follows (see Figure 8):
a. Open the pump drain valve and drain any remaining water from the pump.
b. Remove the six nuts that attach the pump housing to the adapter.
c. Loosen and remove the pump housing and gasket. Discard the gasket.
d. Remove and discard the coupling clamp assembly.
e. Carefully pry the drive sleeve/impeller assembly off of the diesel engine (P-8) or electric
motor (P-7) drive shaft. Discard the drive sleeve/impeller assembly.
f. Remove the four cap screws, four lock washers, and four flat washers that attach the
adapter to the diesel engine (P-8), or the four cap screws and four lock washers that
attach the adapter to the electric motor (P-7) and remove the adapter.
g. Push the seal seat out of the adapter and discard the seal seat.
h. Remove and discard the two acorn nuts and two gaskets from the back of the pump
housing.
i. Remove and discard the two flat head screws and the wear plate.
WEAR PLATE
HOUSING GASKET
IMPELLER
DRIVE SLEEVE
PUMP HOUSING
SEAL SEAT
ACORN NUT AND GASKET
FLAT HEAD SCREW
NUT
CAP SCREW AND LOCK WASHER
ADAPTER
MOTOR
DRIVE SHAFT
SET SCREW
COUPLING CLAMP ASSEMBLY
Figure 8. P-8 and P-7 Pump, Adapter, and Wear Plate Removal.
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