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ARMY TM 9-4210-381-14
NAVY EE-000-CA-MMA-010/7053-AC
AIR FORCE TO 35E9-136-31
4-58. SERVICE LIGHT SWITCH (S2).
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. Open right electric plate (para 4-31).
INSPECTION
1.
Check switch (1) to see that leads are properly connected (see Figure 4-61 and Figure FO-3).
2.
Check that leads are not loose or broken. Tighten loose leads. If wiring is damaged, replace as necessary.
3.
Check that switch terminals are not loose, broken, or corroded. Replace switch, if defective.
4.
Check switch for signs of overheating or other visible damage. Replace switch, if defective.
TESTING
1.
Tag and disconnect leads from switch.
2.
Using multimeter, check continuity between two switch terminals and set switch to ON, then OFF.
ON - Continuity.
OFF - No continuity.
3.
If switch fails test, replace switch.
4.
If switch not being replaced, connect leads tagged in step 1.
4-110
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