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 TM 5-4120-386-14
5-28. COMPRESSOR - Continued,
LOCATION/ITEM
ACTION
REMARKS
Test-Continued
c.
Check for continuity between
pins A, B and C and the com-
pressor housing. No continuity
should exist. If continuity
exists, replace compressor.
d. Check for continuity between
pins D and E. Continuity
should exist. If the high
temperature thermostat is
open, let the compressor
cool, then recheck for
See Para. 5-12.
continuity. If continuity
does not exist after allowing
the compressor to cool, replace
compressor.
e. If compressor windings are
See Para. 5-28
(Decontamination).
bad, check for compressor
burn-out prior to installing
new compressor.
Removal
With dry nitrogen flowing
a.
through refrigerant system,
debraze tubing from con-
See Para. 5-12.
nections (X).
NOTE
The compessor is mounted to the
housing by bolts inserted from
the inside of the unit, attaching
to locknuts which are inserted
from the underside of the unit.
Thus, it is necessary that the
entire air conditioner be
raised and placed on blocks of
sufficient height to allow for
removal of the locknuts below
the base.
b. Loosen eight screws (1) and
open four access covers (2)
on bottom of unit.
5-92
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