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ARMY TM 9-4210-381-14
NAVY EE-000-CA-MMA-010/7053-AC
AIR FORCE TO 35E9-136-31
4-59. FAULT RESET SWITCH (S12).
This task covers:
Inspection
Testing
Repair/Replace
Removal
Installation
INITIAL SETUP:
Tools:
Tool kit, service, refrigeration unit (Item 1, Appendix B)
Soldering Iron (Item 16, Appendix B)
Goggles, industrial (Appendix C)
Personnel: 1
Materials:
Solder, lead-tin alloy (Item 18, Appendix E)
Flux, soldering, liquid rosin base (Item 19, Appendix E)
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 disconnected unit power.
1. Disconnect air conditioner input power at source.
2. Open right electric plate (para 4-31).
INSPECTION
1.
Check switch (4) to see that leads are properly connected (see Figure 4-62 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 (4) terminals are not loose, broken, or corroded. Replace switch, if defective.
4.
Check switch (4) for signs of overheating or other visible damage. Replace switch, if defective.
TESTING
1.
Using multimeter, check continuity between terminals and depress switch.
OUT - Continuity.
IN - No Continuity
2.
If switch fails test, replace switch.
REPAIR/REPLACE
Repair consists of replacing splash proof seal or fault reset switch.
REMOVAL
1.
Unsolder, tag and disconnect leads.
2.
Remove splash proof seal (1), nut (2), and star washer (3).
3.
Remove switch (4).
4-112
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