ARMY TM 10-4610-309-14
MARINE CORPS TM 10802A-14/1
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TACTICAL WATER PURIFICATION SYSTEM (TWPS)
OPERATOR MAINTENANCE PROCEDURES
AIR SYSTEM
3. Bleed the air compressor lubrication system (vent the oil pump) as follows (see Figure 8):
a. Remove the 15 cap screws, 15 lock washers, and 15 flat washers from the front of the
belt guard assembly and lift the front screen off the belt guard assembly to provide
access to the flywheel.
b. Place a rag under the compressor oil pump.
c. Unscrew the tube nut and disconnect the oil pump supply tubing from the bottom of the
oil pump.
d. Turn the compressor flywheel counterclockwise by hand until bubble-free oil comes from
the fitting. This should only take a few turns of the flywheel.
e. Reconnect the supply tubing to the oil pump.
f. Reinstall the belt guard screen.
OIL SIGHT GLASS
FLYWHEEL
OIL PUMP
BELT GUARD
TUBE NUT
ASSEMBLY
OIL PUMP SUPPLY TUBING
BELT GUARD SCREEN
CAP SCREW, LOCK WASHER,
AND FLAT WASHER
Figure 8. Air Compressor Oil Pump Supply Tubing and Flywheel.
4. Open Air Receiver Tank Shut-Off Valve V-907.
5. Switch the Air Compressor control at the OCP to OFF.
6. While the compressor is operating, check the oil sight glass for oil flow and that there are no air
bubbles visible.
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