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Page Title:
REFRIGERATION SYSTEM SERVICING -(BRAZING/DEBRAZING). |
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 TM 5-4120-386-14
This task covers: Service
INITIAL SETUP
Equipment
Condition
Para
Condition Description
Refrigeration system discharged.
Refrigeration system purged.
Main power source disconnected.
Materials/Parts
Brazing alloy (silver) (App. D, Items 5 & 6)
Nitrogen cylinder (App. D, Item 4)
Brazing flux (App. D, Item 7)
Abrasive cloth (App. D, Item 8)
Rags (App. D, Item 9)
LOCATION/ITEM
ACTION
REMARKS
a.
General. All tubing in the
refrigeration system is copper
with a finish that permits
thorough cleaning. All inter-
connecting fittings, such as
elbows, tees, etc., are also
copper. The bodies of all
valves and all connections
on other components are
brass. All joints, except
those provided with flare
fittings, are made by brazing
in accordance with MIL-B-7883,
except that radiographic
examination is not required.
b. Filler Alloy. Grade IV
or VI brazing alloy and
Type B flux, as specified
in MIL-B-7883, must be
used for all copper to
brass joints. Grade III
brazing alloy may be sub-
stituted for Grade IV or
VI for copper to copper
joints; flux is not required
for copper to copper joints.
5-38
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