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 TM 5-4120-374-13
REMARKS
ACTION
LOCATION/lTEM
INTERIOR OF HOUSING
12. Service Valves
a. Unscrew and remove flare nuts from suction and discharge
service valves.
b. Remove refrigerant lines from suction and discharge service
valves.
c. Remove two (2) screws from each service valve.
d. Remove suction and discharge service valves.
13. Refrigerant Piping a. Unsolder and remove tubing only when necessary to remove
a defective part.
b. When soldering, constantly purge the refrigerant system
with dry nitrogen to prevent scale formation within the
refrigerant system (paragraph 5-7).
INTERIOR OF HOUSING
14. Refrigerant Piping
a. Visually inspect all piping for kinks, cracks or splits.
b . Inspect all fittings for leaks.
a . Visually inspect all valves for signs of damage.
15. Valves
b. Inspect valve fittings for leaks.
5-17
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