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 136 of 180

TM 94920-430-14

p.

Squirt leak detecting fluid around the seal area of the two desiccant chamber covers.

Visually check for gas bubbles indicating leakage. If a leak occurs, repeat steps

a

through

p

above and

replace the two preformed packings. Continue with remaining steps in this procedure.

q.

Slowly open the INLET SHUTOFF valve (19) two complete turns counterclockwise.

r.

Press the ON pushbutton to start the pump.

s.

After pump stops operating, repeat leak check in step

p.

t.

Slowly open the OUTLET BLEED valve (19) one turn counterclockwise. Very slowly open

the OUTLET SHUTOFF valve (20) just until you hear gas escaping. Purge the system for 10

minutes; then. close OUTLET SHUTOFF and OUTLET BLEED valves fully clockwise. Close

INLET SHUTOFF valve CW.

u.

Close the argon gas supply valve (15) fully clockwise.

v.

Slowly open the INLET BLEED valve (16) one turn counterclockwise. Then, slowly open

(turning counterclockwise) the INLET SHUTOFF valve (17) sufficiently to relieve high pressure

down to 500 psig as read on the INLET PRESSURE gage (18). Immediately close the INLET

SHUTOFF valve (17) and then the INLET BLEED valve (16) fully clockwise.

w.

Slowly open the OUTLET BLEED valve (19) one turn counterclockwise. Then, slowly

open (turning counterclockwise) the OUTLET SHUTOFF valve (20) sufficiently to relieve the high

pressure down to 500 psig on the OUTLET PRESSURE gage (21). Close the OUTLET SHUTOFF

valve (20) and OUTLET BLEED valve (19) fully clockwise.

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