ARMY TM 10-4610-309-14
MARINE CORPS TM 10802A-14/1
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TACTICAL WATER PURIFICATION SYSTEM (TWPS)
UNIT MAINTENANCE PROCEDURES
MICRO-FILTRATION SYSTEM
MF Feed Pump P-3 Pump/Motor Assembly Replacement:
Parts (TM 10-4610-309-24P):
P-3 pump/motor assembly
Materials:
Sealing Compound (WP 0079, Table 1, item 36)
Equipment Condition:
P-3 Pump assembly removed from service and drained
Replace the MF Feed Pump P-3 Pump/Motor Assembly follows (see Figure 2):
1. Disconnect the motor cable at the junction box.
2. Remove the four bolts, flat washers, and lock washers that secure the pump/motor unit to the
frame.
WARNING
Two person lift. Two people are required to safely move the pump/motor unit. Lift
with your legs, not your back. Failure to observe this warning may result in back
injury.
3. Slide the pump/motor unit out the side of the frame.
4. Position the new pump/motor unit onto the frame and secure it using the four bolts, flat washers,
and lock washers.
5. Connect the motor cable to the proper receptacle on the junction box.
6. Remove the coupler and dust cap from the outlet connection of the old pump and install them on
the new pump. Use sealing compound on the coupler threads (WP 0079, Table 1, item 36).
7. Remove the coupler and dust plug from the inlet connection of the old pump and install them on
the new pump. Use sealing compound on the coupler threads (WP 0079, Table 1, item 36).
8. Remove the drain valve from the old pump. Remove the drain plug from the new pump and
install the drain valve on the new pump. Use sealing compound on the valve threads (WP 0079,
Table 1, item 36).
9. Place the pump back into service and inspect it for leaks and proper operation.
BOLT, FLAT WASHER, AND LOCK WASHER
COUPLER AND DUST CAP
PUMP/MOTOR UNIT
JUNCTION BOX
COUPLER AND DUST PLUG
DRAIN VALVE
FRAME
Figure 4. MF Feed Pump P-3 Pump/Motor Assembly Replacement.
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