TM 9-4120-403-14
Replacement
NOTE
The refrigeration system contains a number of pieces of copper tubing in a variety of material grades,
sizes, lengths, and shapes, and a number of elbows, tees, and adapters in several sizes. Observe the
following when replacing any piece of tubing or fitting in the system:
(1)
Purge the system with nitrogen and debraze the tube connections. (See aras 5-8 and 5-9.)
(2)
Remove the part.
(3)
Install the replacement part on the tube ends.
(4)
While purging the system with nitrogen braze the tube joints. (Seeparas 5-8 and 5-9.)
Follow-on procedures:
(1)
Replace the dehydrator. (See para 5-23.)
(2)
Purge system. (See para 5-8.)
(3)
Leak test all newly connected joints and those in the repaired area. (See para 5-10.)
(4)
Evacuate the refrigeration system. (See para 5-11.)
(5)
Charge the refrigeration system. (See para 5-12.)
(6)
Install covers and panels.
5-83