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ARMY TM 9-4210-381-14
NAVY EE-000-CA-MMA-010/7053-AC
AIR FORCE TO 35E9-136-31
4-62. CIRCUIT BREAKERS (CB1 AND CB2).
This task covers:
Inspection
Testing
Removal
Installation
INITIAL SETUP:
Tools:
Tool kit, service, refrigeration unit (Item 1, Appendix B)
Personnel: 1
Equipment Conditions:
WARNING
Disconnect input power to the air conditioner before performing any internal maintenance. Voltages
used can KILL. Shutting the unit off at the control panel does not disconnect unit power.
1. Disconnect air conditioner input power at source.
2. Remove center front evaporator panel (para 4-22).
3. Open left electric plate (para 4-30).
INSPECTION
1.
Check that mounting hardware and circuit breakers (3) are in place and secure (see Figure 4-65).
2.
Check that wire leads are properly connected to circuit breakers (3) and are not damaged (see Figure FO-3).
3.
Check circuit breakers (3) for signs of overheating or other visible damage.
TESTING
Using multimeter, check continuity between circuit breaker (3) terminals. Contacts should be closed. If there is no
continuity, replace circuit breaker.
REMOVAL
1.
Tag and disconnect leads.
2.
Remove two screws (1), locknuts (2), and four flat washers (4).
3.
Remove circuit breaker (3).
INSTALLATION
1.
Place replacement circuit breaker (3) in mounting position.
2.
Install two screws (1), four flat washers (4) and two locknuts (2).
3.
Reconnect leads and remove tags.
FOLLOW ON PROCEDURES
1.
Close left electric plate (para 4-30).
2.
Install center front evaporator panel (para 4-22).
3.
Connect air conditioner input power at source.
4-118
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