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Page Title:
SERVICE VALVES MAINTENANCE - continued |
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 TM 9-4120-430-14
0056 00
WARNING
Ensure power source is disconnected.
Ensure system is discharged of refrigerant.
INSPECT
Interior of Housing
1.
Visually inspect all valves for signs of damage.
2.
Inspect valve fittings for leaks.
3.
Inspect internal valve core (tire type valve). Replace if defective.
REMOVAL
1.
Remove two screws (1), flat washers (2), eyelets of cap chain (3), and clamps (4) to release service valves (5) and
tubing (6) from condenser fan housing (7).
2.
Debraze service valves (5) from tubing (6) (see WP 0046 00).
INSTALLATION
1.
Purge system (see WP 0045 00).
2.
Braze service valves (5) to refrigerant tubing (6) (see WP 0046 00).
3.
Secure service valves (5) and eyelet of cap chain (3) to condenser fan housing (7) with clamps (4), flat washers (2),
and screws (1).
4.
Replace filter-drier (see WP 0051 00).
5.
Leak test refrigeration system (see WP 0047 00).
6.
Evacuate refrigeration system (see WP 0048 00).
7.
Charge refrigeration system (see WP 0049 00).
8.
Secure valve caps (8).
9.
Install top cover (see WP 0018 00).
0056 00-2
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