TM 9-4120-378-14
5.22 SERVICE VALVES-INSPECT/REPLACE. This task covers inspection, removal and installation.
INITIAL SETUP
Equipment Conditions:
Rear cover removed (paragraph 4.17)
Refrigerant system discharged (paragraph 5.4)
Remarks
Action
Location/Item
Interior of
Housing
Avoid bodily contact with liquid refrig-
erant and avoid inhaling refrigerant
gas. Be especially careful that refrig-
erant does not come in contact with
eyes, In case of refrigerant leaks, ven-
tilate area immediately.
Check that power source is discon-
nected. Check that system is dis-
charged of refrigerant.
Visually inspect all valves for signs of damage.
a.
Inspection
Inspect valve fittings for leaks.
b.
Remove screw (1), Iockwasher (2), flat washer (3),
a.
Removal
and clamp (4) from each service valve (5).
Unscrew and remove flare nuts (6) from suction and
b.
discharge service valves.
Remove refrigeration lines from valves.
c.
d.
Remove suction and discharge service valves.
