TM 9-4120-407-14
4-11. SERVICE MANIFOLD INSTALLATION. (Cont)
(7) Loosen the pressure gauge hose at service manifold and allow refrigerant to purge for 3-5 seconds.
Tighten hose.
(8) Loosen the compound gauge hose at service manifold and allow refrigerant to purge for 3-5 seconds.
Tighten hose.
b . Removal.
(1)
Check that discharge and suction service valves are closed.
(2)
Open all four service manifold valves to bleed off pressure.
(3) Remove hoses from discharge and suction service valves.
(4) Close service manifold valves.
(5) Install protective caps (5) onto discharge and suction service valves.
(6)
Install access (service valves) cover (4) with six screws (1), lock washers (2) and flat washers (3).
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