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
f.
Turn the bearing plate over and remove the shaft seal assembly from the bearing plate
by removing the allen head screws (see Figure 18).
g. Inspect the bearing plate as follows:
1) Remove and discard the O-rings.
2) Inspect the bearing plate and all threads for damage or de-lamination.
3) Inspect the shaft bearing for signs of wear or damage. If damaged, replace the
bearing plate bearing. Refer to High Pressure Pump Repair.
BEARING PLATE BEARING
BEARING PLATE
SHAFT SEAL ASSEMBLY
ALLEN HEAD SCREW
MOUNTING FLANGE
Figure 18. HPP Shaft Seal and Mounting Flange Removal and Installation.
5. Assemble the pump components as follows:
a. Install the new shaft seal assembly onto the bearing plate using the allen head screws
(see Figure 18). Tighten the screws evenly in an alternating cross pattern. Torque to 5.0
ft-lbs.
b. Set the bearing plate onto the mounting flange so that the shaft seal assembly fits into
the opening at the top of the mounting flange (see Figure 18).
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