ARMY TM 10-4610-309-14
MARINE CORPS TM 10802A-14/1
0061 00
TACTICAL WATER PURIFICATION SYSTEM (TWPS)
UNIT MAINTENANCE PROCEDURES
FEED FLOW CONTROL PANEL
Pressure Gauge 0-30 psig PI-904 Replacement:
Parts:
Pressure Gauge 0-30 psig PI-904 (TM 10-4610-309-24P)
Material:
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 Pressure Gauge PI-904 as follows:
1. Remove Pressure Gauge PI-904 from the feed flow control panel assembly as follows (see
Figure 7):
a. Bleed the air system. Refer to AIR SYSTEM BLEED DOWN PROCEDURES.
b. Disconnect the tube from the panel mount connector.
c. Remove the nut that holds the pressure gauge to the feed flow control panel and remove
the pressure gauge.
d. Remove the panel-mount connector from the gauge and clean the threads of the
connector.
0061 00-13
