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
PUMP CASING GASKET
INTERNAL BYPASS HOLE
STATIONARY SEAT GASKET
MOTOR
IMPELLER
PUMP COVER
SLEEVE
SEAL
SCREW GASKET
KEY
O-RING
CAP SCREW
SCREW
STATIONARY SEAT
SPRING
ADAPTER
MOTOR DRIVE SHAFT
Figure 15. Seal Kit and Shaft Sleeve Installation.
5. If the wear ring is damaged, replace it as follows:
a. Drill a hole through the wear ring in two places opposite each other. Be careful not to
damage the pump casing (see Figure 16).
b. Crack the remaining ring wall and remove the wear ring.
c. Make sure the surfaces of the new wear ring and the pump casing where the ring is to be
installed are free of burrs. Remove any burrs with a fine emery cloth.
d. Press the new wear ring into place.
e. Evenly drive the ring into place.
PUMP CASING
WEAR RING
EXAMPLE OF WHERE
TO DRILL HOLES
Figure 16. Wear Ring Removal.
6. Reinstall the pump casing as follows (see Figure 15):
a. Install a new casing gasket on the shoulder of the pump cover.
b. Position the pump casing so that the pump discharge points toward you when the motor
is on your left and the pump is on your right.
c. Place the new pump casing onto the pump cover, apply sealing compound (WP 0079,
Table 1, item 35) to the eight cap screws and secure the pump casing with the screws.
d. Tighten the cap screws uniformly.
7. Reconnect the electric motor cable to the P-3 skid junction box.
8. Place the MF Feed Pump back into service and inspect it for leaks.
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