REPLACE COMPRESSOR

TM 5-4120-393-14

5-28. Compressor (B1) (cont)

REPLACE COMPRESSOR

Check to see that the power has been disconnected at the power source and covers have been removed during

access and testing.

Disconnect the P2 connector from the condenser fan motor.

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.

Using sling and spreader bar, attach overhead hoist to lifting rings on each side of cabinet.

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 bolts must be removed.

Unwrap the insulation from the suction line so that the joint on the compressor is exposed.

Discharge the refrigerant system. See para 5-9.

While purging the system with nitrogen, debraze the tubing. See para 5-10 and 5-11.

Using two socket and ratchet wrenches, remove four nuts (2) and washers (3) from top of mounting foot and four bolts

(1), flat washers (3), and washers (4) from bottom of unit.

WARNING

If compressor burnout is suspected, use care when handling compressor to avoid

touching compressor sludge. Acid in sludge can cause burns.

Lift or tilt compressor and remove washer (4) from under each of the four mounting feet.

5-72