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 55 of 180
TM 9-6920-430-14
2-5. POST-OPERATING INSTRUCTIONS.
a.
Close the argon gas supply valve (36) fully clockwise.
b.
Verify that the INLET SHUTOFF valve (39) is open (two turns counterclockwise).
Slowly open the INLET BLEED valve (37) one turn counterclockwise to sufficiently
relieve high pressure down to 500 psig as read on the INLET PRESSURE gage (38). Close
the INLET SHUTOFF valve (39) and then the INLET BLEED valve (37) fully clockwise
after gas in hose has been relieved.
c.
Carefully disconnect (turning counterclockwise) the hose fitting at the GPU outlet
connector using a 9/16-inch wrench to loosen. Seal the GPU outlet connector with the
GPU outlet protective cap and seal the outlet flexible hose with its protective cap. Remove
chain.
d.
Slowly open the OUTLET BLEED valve (40) one turn counterclockwise. Then
slowly open (turning counterclockwise) the OUTLET SHUTOFF valve (41 ) sufficiently to
relieve the high pressure down to 500 psig on the OUTLET PRESSURE gage (42). Close
the OUTLET SHUTOFF valve (41) and OUTLET BLEED valve (40) fully clockwise.
2-5.1 TRAINER BLEED DOWN PROCEDURE
a.
b.
c.
d.
e.
f.
g.
Ensure that the OUTLET SHUTOFF and OUTLET BLEED valves (40) (41 ) are
closed fully clockwise.
Install THT on GPU in accordance with paragraph 2-3, steps a through g.
Slowly open TRAINER ADAPTER valve fully clockwise.
Open the OUTLET SHUTOFF valve (41 ) two complete turns counterclockwise.
Observe OUTLET PRESSURE GAGE (42) indication.
Slowly open the OUTLET BLEED valve (40) counterclockwise until you hear gas
escaping.
After 10 seconds, close the OUTLET BLEED valve (40) fully clockwise. Observe
OUTLET PRESSURE GAGE (42) indication. Continue bleed down procedure
until the desired trainer gas bottle pressure indication is obtained.
Slowly open the TRAINER ADAPTER valve fully counterclockwise.
Change 6
2-21
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