TM 9-4120-403-14
Replacement
(1) Heater
(a) Disconnect plug P3 from connector J3 in compressor connector box.
(b) Remove tie down strap, tag and cut black wire leads close to heater element at front.
(c) Remove screw and ground wire terminal from compressor connector box.
(d) Loosen clamp screw, pivot screw, then slide band from clamp and unit.
(e) Strip ends of heater leads exiting bottom of compressor connector box approximately 3/8 of an inch.
(f) Carefully install new heater around compressor base and secure in positi n.
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(g) Cut heater leads to length required to meet with existing leads from compressor connector box. Strip ends
approximately 3/8 of an inch.
(h) Place a 2.50" length of insulation sleeving over each lead exiting compressor connector
box.
(i) Crimp splice heater leads to the leads from the compressor connector box. Wire ends should be visible in
access holes at center of crimp barrel.
(j) Locate and shrink insulation sleeving in place over splice connectors.
(k) Install ground lead and screw to compressor connector box.
(l) Secure position of splice connectors above the level of the heater withtiedown straps.
(2) Compressor
NOTE
If compressor windings are bad, check for compressor burn out prior to installing a new compressor. (See
instructions in compressor removal.)
(a) 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.
(b) Unwrap the insulation from the suction tube up to the capillary tube so that the joint on the compressor is
exposed.
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