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
Replace the second stage valve head assembly as follows (see Figure 9).
1. Make sure that electrical power to the TWPS has been shut off.
2. Make sure the high-pressure air system has been bled down. Refer to High-Pressure Air
System Bleed Down Procedures.
3. Remove the second stage valve head assembly as follows:
a. Disconnect the two intercooler tubes from the second stage valve head assembly.
b. Remove the six socket head cap screws that hold the second stage valve head assembly
to the cylinder.
c. Remove the second stage valve head assembly from the piston cylinder.
d. Cover the piston cylinder to prevent dirt from entering the cylinder.
DOME NUT
DOME NUT GASKET
DOME NUT
SET SCREW
INTERCOOLER
TUBE TO REMOVE
SOCKET
HEAD SCREW
VALVE HEAD
ND
2 STAGE VALVE
HEAD ASSEMBLY
INTERCOOLER
TUBE TO REMOVE
Figure 9. Second Stage Valve Head Assembly Replacement.
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