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 98 of 180
TM 9-6920-430-14
pushbutton (25). Note that the relief valve will stop venting gas between 4000 and 7000
psig. If the relief valve fails to open between the limits of 6550 and 7250 psig, release the
COMPRESSOR RUN pushbutton (25), and perform substeps (a) through (d) below,
otherwise continue with step (31).
(a) Vent system in accordance with paragraph 3-8a(14), steps (a) through (c).
(b) Relief valve adjustment is accomplished through left access door.
(c) Using a 12-inch adjustable wrench, loosen the relief valve locking nut.
use a 3/8 Hex wrench to adjust the screw in the top of the valve clockwise to increase
pressure and counterclockwise to reduce pressure. One quarter turn of the adjustment
screw will change the setting by approximately 500 psig. The valve should be adjusted for
6900 ± 350 psig. Tighten locking nut after adjustment has been made.
3-38
Change 1
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