TM9-4120-402-14
5-22. PRESSURE RELIEF VALVE. - continued
a.
Inspect.
Inspect pressure relief valve (1) for visible signs of damage. Replace if damaged.
b.
Replace.
(1)
Secure tee (2) so it does not twist and unscrew pressure relief valve (1).
(2)
Apply antisieze tape to threads of pressure relief valve (1).
(3)
Secure tee (2) so it does not twist and tighten pressure relief valve (1) in tee.
NOTE
FOLLOW-ON MAINTENANCE:
COIL.
This task covers:
Replace
INITIAL SETUP
Tools
Equipment Condition
Refrigeration Unit Service Tool Kit
Gloves
Materials/Parts
Lock Washers (4)
WARNING
When handling coils, wear gloves to avoid cuts and reduce fin damage to the coil.
Replace.
(1)
Remove refrigerant desiccant dehydrator and purge refrigerant system. (See paragraphs 5-11 and 5-
12.)
5-60