ARMY TM 10-4610-309-14
MARINE CORPS TM 10802A-14/1
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TACTICAL WATER PURIFICATION SYSTEM (TWPS)
UNIT MAINTENANCE PROCEDURES
REVERSE OSMOSIS SYSTEM
6. Remove the four bolts, eight spacers, eight washers, and four nuts that hold the motor to its base
and remove the motor.
SPLASH PLATE
NUT
WASHER
SLINGER
MOTOR
CAP SCREW
SPACER
ADAPTER
BASE PLATE
CAP SCREW
SPACER
WASHER
BOLT
Figure 5. RO Feed Pump P4 Electric Motor Removal.
7. Secure the replacement motor to the motor base using the mounting hardware that was retained
when the old pump motor was removed.
8. Install the splash plate and slinger on the motor drive shaft.
9. Attach the adapter to the replacement motor using the four cap screws.
10. Inspect the RO Feed Pump components, replace parts as needed, and install the pump onto the
adapter. Refer to REPAIR and RO Feed Pump P-4 Repair in this work package.
11. Install the RO Feed Pump P-4 Assembly onto the TWPS skid. Refer to REPLACE and RO Feed
Pump P-4 Pump/ Motor Assembly Replacement.
12. Place the RO Feed Pump back into service and inspect it for proper operation and leaks.
Inline RO Strainer S-4 Replacement:
Parts (TM 10-4610-309-24P):
Inline RO Strainer S-4 Body
Inline RO Strainer S-4 Mesh
4-in. Sanitary Clamp Gasket
2-in. Grooved Coupling Gasket
Material:
Tape, antiseizing (WP 0079, Table 1, item 43)
Equipment Condition:
TWPS in Standby Shutdown Without Draining Down
Army: TWPS main breaker off
Marine Corps: TWPS disconnected from power source
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