TM 9-4120-408-14
5-27. EVAPORATOR TUBING AND FITTINGS MAINTENANCE. (Continued)
CAUTION
Dehydrator must be replaced every time the air conditioner lines are exposed to the atmosphere.
Failure to obey this caution may result in equipment damage.
a. Remove.
(a) Loosen flare nut (2).
(b) Disconnect outlet tubing (1) from evaporator coil distributor (3).
(2) Remove liquid line tube assembly (4) as follows:
(a) Loosen flare nut (5) and nut (6) and remove liquid line tube assembly (4).
(b) Remove two lock nuts (7), flat washers (8), two preformed packings (9), split ring (10) and cap chain (11)
from bulkhead elbow (12). Discard preformed packing (9).
(3) Remove suction line tube assembly (13) as follows:
(a) Loosen nut (14), disconnect suction line tube assembly (13) from evaporator coil return (15), and remove
suction line tube assembly (13).
(b) Remove two lock nuts (16), flat washers (17), two preformed packings (18), split ring (19) and cap chain (20)
from bulkhead elbow (21).
b. Repair.
(1) Inspect TEV outlet tubing (1), liquid line tube assembly (4), and suction line tube assembly (13) for any evidence
outlet tubing (1).
NOTE
When replacing damaged or missing cap and chain on liquid line tube assembly the cap
and chain ring is installed on the liquid line tube assembly.
When replacing damaged cap and chain on suction line tube assembly secure cap and
chain ring to suction line tube assembly with new wire tie
(2) Inspect liquid line tube assembly (4) and suction line tube assembly (13) for damaged or missing cap and chain
(23).
NOTE
When replacing cap and chain assembly on suction line remove and discard tiedown strap. Use new
tiedown strap to secure cap and chain assembly to suction line assembly.
(3) Replace damaged or missing cap and chain (23).
(4) Inspect all mounting hardware for damage.
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