TM 9-4110-256-14
5-26.
STOP VALVE (DEFROST LINE) REPLACEMENT.
This task covers:
a. Removal
b. Installation
INITIAL SETUP
Materials/Parts:
Equipment Conditions:
Self Locking Nuts (2)
Refrigeration system discharged (para 5-8) and
12, Appendix G
purged (para 5-9).
Front bottom doors open.
a.
Removal.
(1)
De-braze two fittings (1) from stop valve (2) (para 5-10).
(2)
Remove two self locking nuts (3), bolts (4), and stop valve (2). Discard self locking nuts.
Figure 5-22. Stop Valve
b.
Installation.
(1)
Install stop valve (2), two bolts (4) and new self locking nuts (3).
(2)
Braze two fittings (1) onto stop valve (2) (para 5-10).
NOTE
FOLLOW-ON MAINTENANCE:
Close front bottom doors.
Replace dehydrator (para 5-15).
Leak check (para 5-11), evacuate (para 5-12), and charge (para 5-13) the refrigeration system.
5-49
