TM 5-4520-253-13
R E P A I R P C B O A R D A S S E M B L Y W I R I N G R E C E P T A C LE
TOOLS: Tool kit, service, refrigeration unit
NSN 5180-00-596-1474
MATERIALS/PARTS: Sealant (Item 10, Appendix E)
Tape (Item 14, Appendix E)
Receptacle
Terminal, male (9)
Tie, cable (as required)
GENERAL SAFETY INSTRUCTIONS:
Power off.
Heater cool.
REPAIR:
Death or serious injury could occur if precautions are not
taken when maintaining this equipment. Position HEATER-
OFF-FAN switch to OFF, remove power cable plug from
POWER RECEPTACLE, and ground capacitors Cl and C2
prior to gaining access to heater compartments. Terminals
of capacitors are accessible at end cover of combustion
blower. Always disconnect power cable before repairing
heater. Always have another person standing by who is
trained in electric shock first aid.
Allow sufficient time for heater to cool to room tempera-
ture before gaining access to heater compartments.
PC board assembly wires are potted into PC board wiring receptacle.
receptacle. PC board wires are long enough to allow cutting close to
receptacle.
Proceed as follows:
Repair consists of replacing
receptacle and installing new
1.
2.
3.
4.
Open control box cover (1) by unlocking stud (2).
Remove six screws (3) and lock washers (4). Lift off bottom cover (5).
Reach through heater case opening (6) and disconnect louver linkage from right-hand louver
panel (7). Remove panel by unlocking eight studs (8).
Disconnect control box harness (9) from PC board wiring receptacle (10). Depress locking tabs
and pull receptacle out of mounting hole from inside heater case.
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