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
Air System Section 4 Assembly Replacement:
Parts (TM 10-4610-309-24P):
Air System Section 4 Assembly
Material Required:
Tape, antiseizing (WP 0079, Table 1, item 43, 44)
Personnel Required:
Two
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
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 System. 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 air
system must be bled prior to performing maintenance on components of the air
system. Failure to observe this warning can result in injury to personnel and
damage to equipment.
Replace the Air System Section 4 assembly as follows:
1. Make sure the air system has been bled down. Refer to ENTIRE AIR SYSTEM BLEED DOWN.
2. Remove the Air System Section 4 assembly as follows (see Figure 7):
a. Tag and disconnect the hose from Solenoid Valve XV-902.
b. Tag and disconnect the electrical wiring from the solenoid valve.
c. Tag and disconnect the hose coming from the Air System Section 3 assembly from the
tee in Air System Section 4.
d. Tag and disconnect the hose from the Section 4 outlet that goes to MF Check Valve V-
912.
CAUTION
Two people are required to safely remove the air system section 4 assembly from
the TWPS. Failure to observe this warning may result in damage to the equipment.
e. With another person holding the Air System Section 4 assembly, disconnect the three U-
bolts, 6 flat washers, and 6 self-locking nuts that attach the assembly to the TWPS.
f. Remove the Air System Section 4 assembly from the TWPS and place it on a clean
workbench.
055 00-11
