ARMY TM 10-4610-309-14
MARINE CORPS TM 10802A-14/1
0055 00
TACTICAL WATER PURIFICATION SYSTEM (TWPS)
UNIT MAINTENANCE PROCEDURES
AIR SYSTEM, REDUCED PRESSURE
1/2" TO 3/8" REDUCER BUSHING
CHECK VALVE V-908
1/2" CLOSE NIPPLE
3/4" TO 1/2" REDUCER BUSHING
TEE CONNECTION
Figure 9. Check Valve V-908.
4. Place old Check Valve V-908 on a clean workbench and perform the following
a. Clean all disassembled parts
b. Apply pipe tape to both ends of the close nipple and the external threads of the reducer
bushing.
5. Install new Check Valve V-908 as follows:
a. Thread the close nipple onto the check valve hand tight.
b. Thread the 1/2-in. to 3/8-in. reducer bushing onto the input side of Check Valve V-908 and
tighten.
c. Thread the close nipple on the output side of the check valve into the other reducer
bushing. Do not over-tighten. Refer to Figure 9 for correct positioning of the Air System
Section 4 assembly components.
6. Install the Air System Section 4 assembly onto the TWPS. Refer to REPLACE and Air System
Section 4 Assembly.
7. Check new Check Valve V-908 and attached piping for leaks.
Air System Section 6 Assembly Replacement:
Parts:
Air System Section 6 Assembly (TM 10-4610-309-24P)
Equipment Condition:
TWPS in Standby Shutdown Without Draining Down
Army: Generator off and TWPS main breaker off
Marine Corps: TWPS disconnected from power source
Entire air system bled down
055 00-15
