ARMY TM 10-4610-309-14
MARINE CORPS TM 10802A-14/1
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TACTICAL WATER PURIFICATION SYSTEM (TWPS)
UNIT MAINTENANCE PROCEDURES
HIGH PRESSURE PUMPS
SPEEDBALL HANDLE
ADAPTER CAN
MANIFOLD SIDE
CAM SIDE
WRENCH FLATS
PISTON BODY
PILOT PLUG
TENSION ROD
WORN BEARING
Figure 31. High Pressure Pump Body Bearing Removal.
16. Install the new body bearing using the FMC P502677 bearing removal and installation tool as
follows (see Figure 32):
CAUTION
Do not use silicone grease on the inside diameter of the bearing or on the cam
outside diameter. The silicon grease will cause rapid failure of the pressed-in body
bearing.
a. Visually inspect the body bearing for any defects and wipe it clean of any debris.
NOTE
Before installation, submerge the new bearing in clean, fresh water. Water is the
only lubricant that can be used.
b. Install the reaction plate on the tension rod until it is against the nut of the tension rod.
c. Insert the pilot plug into the new bearing. The shoulder on the pilot plug needs to stop
against the bearing.
d. Insert the tension rod reaction plate assembly at the opposite end of the new bearing
through the new bearing and the hole in the pilot plug.
e. Lubricate the bearing bore with a small amount of clean, fresh water before installing the
bearing.
f. Insert the threaded end of the tension rod through the cam side of the piston body.
NOTE
The shoulder of the pilot plug enters the bearing bore before the bearing makes
contact with the piston body.
g. Place the adapter can over the tension rod on the opposite side. Slide the adapter can
down the tension rod until it rests on the piston body.
h. Screw the speedball handle onto the tension rod until the speedball handle contacts the
adapter can.
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