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TM5-4120-387-14
Preliminary procedure:
Remove covers and panels as necessary to have access to
repair area.
a.
Removal
(1) Discharge the refrigeration system in accordance with paragraph 5-6.
(2) Purge the system with nitrogen and debraze the tube connections. (See
paras 5-7 and 5-8.)
(3) Remove the part.
b.
Installation
(1) Replace the replacement part on the tube ends, purge the system with
nitrogen, and braze the tube joints.
(See paras 5-7 and 5-8.)
(2) Replace the dehydrator. (See para 5-13.)
(3) Leak test all newly connected joints and those in the repair area. (See
para 5-9.)
(4) Evacuate and charge the refrigerant system. (See paras 5-10 and 5-11.)
5-30. INSULATION, CASING
a.
Inspection
(1) Check for broken welds, badly bent or dented parts, and cracked or
broken parts.
(2) Check that plate nuts and blind nuts are in place and secure.
(3) Refer repairs to general support maintenance.
(4) Check that insulation is not loose, missing, burnt, or otherwise
damaged.
Replace if missing or damaged. Reglue if loose.
b.
Insulation/Removal
NOTE
Prior to removal of old insulation,
material to size using the old item
(1) Remove as much old insulation mater’
scraping it away from the metal surface.
cut the new replacement
as a sample.
al as possible, by pulling or
5-73
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