ARMY TM 10-4610-309-14
MARINE CORPS TM 10802A-14/1
0053 00
TACTICAL WATER PURIFICATION SYSTEM (TWPS)
UNIT MAINTENANCE PROCEDURES
HIGH PRESSURE PUMPS
b. After both RO feed pumps have started, perform a standby shutdown including
deenergizing the Power Distribution Panel (WP 0017).
c. Set the gap between the pump and motor coupling jaws to 0.030 in. and tighten the
setscrew.
d. Do not pinch or compress the rubber coupling insert.
e. Install the pump coupling cover plate.
8. Perform the Start-Up After a Short Term or Standby Shutdown without Draining procedures
described in WP 0015.
9. Check for leaks and proper high pressure pump operation.
SERVICE
1000-Hour High Pressure Pump PMCS:
Parts (TM 10-4610-309-24P):
Piston Set
Disc Valve Set
O-Ring Kit
Materials:
Glycerin (WP 0079, Table 1, item 21)
Clean, dry, lint-free rags (WP 0079, Table 1, item 33)
Tools:
Torque wrench (0-250 in.-lbs.)
Rubber or Plastic Face Hammer
Equipment Condition:
TWPS in standby shutdown (less than four hours) without draining-down.
Perform high pressure pump 1000-hour PMCS as follows:
1. Remove the high-pressure pump assembly. Refer to High Pressure Pump Assembly
Replacement.
2. Remove the pump from its motor. Refer to High Pressure Pump or Motor Replacement.
3. Disassemble the high pressure pump as follows:
CAUTION
Do not rotate the high-pressure pump shaft by hand. Rinse all parts as they are
removed. Do not scratch or soil any bearing surfaces, metal or plastic. To simplify
your work, keep the pump mounted to the flange and work on the pump in the
vertical position. Work on the pump in a clean area. Note the orientation of all
parts relative to the flange and the motor.
Do not attempt to pry the coupling off the pump shaft. If the coupling does not
easily slide off the shaft, remove the coupling using an appropriate tool such as a
puller. Failure to observe these cautions may result in serious damage to the
pump.
a. Remove the 2 pump mounting flange cover screws and the cover.
0053 00-6
