ARMY TM 10-4610-309-14
MARINE CORPS TM 10802A-14/1
0048 00
TACTICAL WATER PURIFICATION SYSTEM (TWPS)
UNIT MAINTENANCE PROCEDURES
RAW WATER SYSTEM
f. Carefully pry the impeller/drive sleeve assembly off the motor drive shaft and discard it.
g. Remove the four cap screws and lock washers that attach the adapter to the motor.
h. Discard the adapter.
COUPLER AND DUST CAP
IMPELLER
DRIVE SLEEVE ASSEMBLY
COUPLER AND DUST PLUG
SEAL SEAT
PUMP HOUSING
NUT
CAP SCREW AND LOCK WASHER
ADAPTER
MOTOR
DRIVE SHAFT
SET SCREW
COUPLING CLAMP ASSEMBLY
Figure 8. P-2 Pump and Motor Removal.
2. Install a new pump as follows:
a. Polish the motor shaft with fine abrasive cloth to remove any rust or corrosion.
b. Lubricate the shaft and the inside diameter of the drive sleeve on the new pump with
corrosion preventive compound.
CAUTION
Improper assembly can result in damage to the drive sleeve and the motor drive
shaft. Do NOT place a key between the drive shaft and the sleeve. Do NOT force
the shaft into the sleeve. Failure to observe this caution can make impeller
clearance adjustments and future removal of the drive sleeve difficult and may
result in damage to the drive sleeve and/or the motor drive shaft.
Replacement pump assemblies come with a pump housing, impeller, drive sleeve
assembly, coupling clamp assembly, and adapter already assembled together. A
temporary impeller spacer is installed inside the pump between the impeller and
wear plate. Do NOT rotate the pump until the spacer has been removed, or
equipment damage may result. Do NOT remove the spacer until the motor has
been mounted to the pump and the coupling clamp assembly has been tightened.
0048 00-11
