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TM 9-4120-367-14
TM 07592B-14/1
6.3 REPAIR. - Continued
Location/Item
Opening System
Removal of Parts
Action
a.
b.
a.
b.
c.
When the refrigeration system must un-
dergo maintenance that requires the Sys-
tem to be opened for removal of parts,
the system must first be discharged and
purged.
NOTE
In accordance with the Envi-
ronmental Protection Agency
regulations, refrigerants cannot
be purged into the atmosphere.
A refrigerant recovery/recycling
unit must be used whenever
discharging the refrigerant sys-
tem.
Operation of the recovery/re-
cycling unit must be by AU-
THORIZED PERSONNEL
ONLY.
After the repair has been made and all
soldering completed, the system must be
charged and tested for leaks.
If maybe necessary to remove some tub
ing and fittings with a part that is to be re-
placed.
The tubing and fittings can then be re-
moved from the defective part and
installed in the new part.
Care should be exercised in opening
joints or resoldering to prevent damage to
other parts of the air conditioner.
NOTE
If soldering is necessary on
any part of the system, a
constant purge of dry nitrogen
must be fed through the sys-
tem being soldered to prevent
scale formation within the sys-
tem.
Remarks
Paragraphs 6.4 and 6.5
Paragraphs 6.7 or 6.8 and 6.2
6-11
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