TM 9-4120-402-14
5-32. COMPRESSOR (BI). - continued
b. Remove
NOTE
If compressor replacement is necessary, there are two approved compressors available. Keco
compressor (94833) 120K0290-11 or Carrier compressor (97403) 1'3211E3793-4.
These
compressors are interchangeable, however they will require numerous refrigerant tubing
changes. These refrigerant tubing changes may be avoided by ordering a replacement
compressor of the same manufacturer as the original.
(1)
Remove refrigerant desiccant dehydrator and purge refrigerant system. (See paragraph 5-21 and 5-
12.)
(2)
Check to see that wiring harness was disconnected from connector (J14) and that covers have been
removed during access and testing, proceed as follows:
CAUTION
DO NOT LIFT without holding unit in upright position. Otherwise unit will fall over.
NOTE
The compressor is mounted to the cabinet base by four bolts that are inserted from the
underside of the base. In order to remove the compressor, it is necessary that the entire air
conditioner be raised and placed on blocks of sufficient height to allow for removal of these
bolts from below the base.
(3)
Attach an overhead hoist to the lifting handle on each side of the cabinet, using a sling and spreader
bar.
(4)
Raise the cabinet and place it on blocks at least four inches high. Be sure the blocks do not obstruct
the holes in the base through which the compressor mounting shoulder screws must be removed.
(5)
Unwrap the insulation from the suction tube so that the joint on the compressor is exposed.
(6)
Debraze the tubing. (See paragraph 5-13.)
(7)
Remove four lock nuts (1) and flat washers (2) from top of mounting feet and four shoulder bolts (3),
eight flat washers (4), and four rubber washers (5) from underneath side of unit.
(8)
Lever or tilt the compressor (6) and remove four rubber washers (7) from under mounting feet.
*(9)
Install four bushings (8) into four rubber washers (7).
WARNING
If compressor burn out is suspected, use care when handling compressor to avoid touching
compressor sludge. Acid sludge can cause burns.
To avoid injury to personnel, two people are required to lift compressor.
(10) Carefully slide compressor (6) from air conditioner.
*Effective for Carrier Compressor only.
5-82
