ARMY TM 10-4610-309-14
MARINE CORPS TM 10802A-14/1
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TACTICAL WATER PURIFICATION SYSTEM (TWPS)
UNIT MAINTENANCE PROCEDURES
AIR COMPRESSOR
e. Install the valve head on the cylinder with the 3 socket head cap screws. Torque the
screws to 206 in.-lbs.
f. Tighten the pressure valve set screw until seated.
g. Install the dome nut gasket and dome nut.
h. Connect the flexible tube from the demister to the new first stage valve head.
i. Connect the intercooler tube to the new first stage valve head.
j. Install and secure the Air Intake Filter AF-1 Assembly to the first stage head with the
clamp removed earlier.
5. Turn the compressor manually using the flywheel to make sure that all components have been
correctly installed.
CAUTION
After replacing a valve head assembly on the compressor, the compressor should
be stopped after 30 minutes of operation and the socket head screws and cap nut
at the top of the valve head should be tightened. Failure to observe this CAUTION
may result in the valve head gasket(s) leaking.
6. Thirty minutes after restarting the compressor, stop the compressor and let it cool to ambient
temperature. Retighten the socket head screws and the cap nut at the top of the valve head.
Second Stage Valve Head Assembly Replacement:
Parts (TM 10-4610-309-24P):
Second Stage Valve Head Assembly
Materials WP0079):
Corrosion preventive compound (WP 0079, Table 1, item 17)
Adhesive, silicone (WP 0079, Table 1, item 1)
Equipment Condition:
TWPS in Standby Shutdown Without Draining Down
Army TWPS: Generator off and TWPS main breaker off
Marine Corps TWPS: TWPS disconnected from power source
WARNING
The TWPS must be in Shutdown and the TQG and TWPS main breaker must be off
(Army) or the TWPS disconnected from its power source (Marine Corps) prior to
performing maintenance on the TWPS Air Compressor. Failure to observe this
warning can result in injury to personnel and damage to equipment.
High pressure. The air system contains air pressure up to 1800 psig. The high
pressure air system must be bled prior to removing the 2nd stage valve head
assembly. Failure to observe this warning can result in injury to personnel and
damage to equipment.
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