ARMY TM 9-4120-380-14
AIR FORCE TO 35E9-136-21
4.34 CONTACTORS (K1-K5). This task covers inspection, testing, removal and installation.
Tool kit, service, refrigeration unit (Item 1, Appendix B)
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; and
Checks for cracks, corrosion, loose electrical connections, and loose mounting hardware. Replace contactor if damaged
(see fig 4.25).
and close by pressing on contacts Replace if defective (see fig 4-25)
Tag and disconnect leads
Remove two screws (3) and locknuts (1)
Remove contactor (2).
Place contactor (2) in mounting position and align holes.
Install two screws (3) and locknuts (1).
Reconnect leads and remove tags.