TM-9-6920-430-14
COOLANT RECHARGING UNIT, TRAINING GUIDED MISSILE SYSTEM M80 AND CHARGER, BATTERY PP-7309/T
TECHNICAL MANUAL; OPERATOR’S AND ORGANIZATIONAL DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL
AUGUST 1980
TM-9-6920-430-14 - Page 123 of 180
TM 9-6920-430-14
3-12. REPLACEMENT OF GAS PUMPING UNIT PARTS
Prior to performing the GPU parts replacement procedures, unplug power
cable to prevent possible electrical shock.
The parts that you can replace on the GPU are listed as follows:
Gas supply bottle replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . para. 3-13
Inlet flexible hose replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . para. 3-14
Outlet flexible hose replacement.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . para. 3-15
Desiccant replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . para. 3-16
Trainer fill port cover, retaining ring, and preformed packing
replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . para. 3-17
*Compressor assembly replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . para. 3-18
*GPU running time meter replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . para. 3-19
*Input or output indicator gage replacement . . . . . . . . . . . . . . . . . . . . . . . . . para. 3-20
*Starter relay replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . para. 3-21
*Pressure switch replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . para. 3-22
Rupture disc replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . para. 3-23
*ON/OFF pushbutton switch replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . para 3-24
Safety switch (interlock) replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . para. 3-25
INLET/OUTLET SHUTOFF or bleed valve replacement . . . . . . . . . . . . . para. 3-26
*Relief valve replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . para. 3-26.l
*Solenoid valve replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . para. 3-26.2
*These procedures will be performed at MTS locations only.
Change 3
3-62.1/(3-62.2 blank)
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