TM 9-4120-403-14
Replacement
(1)
Tag and remove wires from relay (K7).
(2)
Remove two screws, washers, and indicator bracket.
(3)
Remove spacer and gasket.
(4)
While purging the system with nitrogen, debraze the tubing. (See para 5-8 and 5-9.)
(5)
Remove liquid sight indicator.
(6)
Position liquid sight indicator on tubing.
(7)
While purging the system with nitrogen, braze the tubing joints. (See para 5-8 and 5-9.)
(8)
Install spacer and gasket and position sight indicator in place.
(9)
Install bracket with two screws and washers.
Follow-on procedures:
(1)
(2)
(3)
(4)
Leak test all newly connected joints and those in the repaired area. (See para 5-10.)
(5)
(6)
Charge the refrigeration system, but do not operate unit. (See para 5-12.)
(7)
(8)
See tags and connect fan relay (K7) leads.
(9)
(11) Install charging valve access cover. (See para 4-13.)
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