ARMY TM 10-4610-309-14
MARINE CORPS TM 10802A-14/1
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TACTICAL WATER PURIFICATION SYSTEM (TWPS)
UNIT MAINTENANCE PROCEDURES
FEED FLOW CONTROL PANEL
Three-Way Solenoid Valve XV-912 Replacement:
Parts:
Three-Way Solenoid Valve XV-912 (TM 10-4610-309-24P)
Materials:
Antiseizing tape (WP 0079, Table 1, item 30, 31)
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 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 3-Way Solenoid Valve XV-912 as follows:
1.
Remove 3-Way Solenoid Valve XV-912 from the feed flow control panel assembly as follows
(see Figure 5):
a. Bleed the air system. Refer to AIR SYSTEM BLEED DOWN PROCEDURES.
b. Disconnect the solenoid electrical connection.
c. Disconnect the tubing from the three tubing adapters on the solenoid valve.
d. Remove the 2 lock nuts, 2 flat washers, and 2 screws that hold the 3-way valve to the
control panel and remove the solenoid valve.
e. Remove the three tubing adapters from the old solenoid valve and clean the threads.
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