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 TM 5-4120-386-14
5-28. COMPRESSOR - Continued.
LOCATION/ITEM
ACTION
REMARKS
Avoid inhaling fumes and burns from
any acid formed by burn out of oil
and refrigerant.
Decontamination
After removal of a bad com-
a.
pressor from the refrigeration
system, tip the compressor
toward the discharge port
to drain sample of oil into
a clear glass container.
b. If the oil is clean and clear,
and does not have a burnt acid
smell, the compressor did not
fail because of motor burn out.
If a burn out is not indicated,
proceed to installing a replace-
ment compressor.
c. If the oil is black, contains
sludge, and has a burnt acid
odor, the compressor failed
because of motor burn out.
d. You must clean the entire refri-
geration system after a burn out
has occurred, since contaminants
will have been carried to many
corners and restrictions in the
piping and fittings. These
contaminants will soon mix
with new refrigerant gas
and compressor oil to cause
repeated burn outs.
Compressed air used for cleaning
purposes will not exceed 30 psi
( 2 . 1 kg/cm 2). Do not direct
compressed air against skin. Use
goggles or full face shield.
5-94
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