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 127 of 180

TM 9-6920-430-14

Argon gas supply bottle must be secured (chain, wire rope) upright to a

building column or any available rigid, immovable structure. If bottle is

used while in cart, secure cart in identical manner.

g.

Requisition a filled gas supply bottle. Thread the supply bottle adapter (6) into the

gas supply valve (7). Tighten, using large adjustable wrench.

h.

Remove the protective plug from the fitting of the hose and thread the fitting into

the supply bottle adapter (6). Tighten, using a 3/4-inch wrench to hold and 9/16-inch

wrench to tighten.

i.

Wrap the chain around the gas supply valve (7) housing and latch the chain lock to

a chain link.

j.

Close the INLET BLEED valve (8) fully clockwise.

Be sure that the adapter (6) and hose fitting (5) are properly installed, and

chain is wrapped and secured around gas supply valve housing before

performing the step below.

k.

Slowly open the argon gas supply valve (7) two complete turns counterclockwise.

l.

Squirt leak detecting liquid around the adapter (6) and hose fittings (5 and 9).

Visually check for gas bubbles indicating leakage. If leaks are detected, close argon gas

supply valve (7) fully clockwise. Open INLET BLEED valve (8) to relieve gas; then close

INLET BLEED valve (8) fully clockwise. Tighten fitting and repeat steps

k

and 1.

m. Slowly open the INLET BLEED valve (8) counterclockwise until you hear gas

escaping. Bleed for 10 seconds. Then, close the INLET BLEED valve fully clockwise.

n.

Close the gas supply valve (7) fully clockwise.

o.

Slowly open the INLET BLEED valve (8) counterclockwise until you hear gas

escaping. Immediately after gas has vented, close the INLET BLEED valve (8) fully

clockwise.

Change 3

3-65