TEST OR INSPECTION
Remove rings, wristwatches, neck chains, and any other jewelry before working
around vehicle. Jewelry can catch on equipment and cause serious injury. Jewelry
and tools may short across electrical circuits and cause damage to equipment, or
severe burns or electrical shock to personnel.
Crew cab air conditioner control contactor operation can be checked, by observing the
movement of the contactor when circuit breakers 12 and 14 are put to ON position.
Stop crew cab air conditioner (WP 0008). Shut vehicle engine off (TM 9-2320-347-10).
Turn battery disconnect switch to OFF position (WP 0007). Remove crew cab air
conditioner/heater control box cover (WP 0201). Start crew cab air conditioner
(WP 0008). While an assistant puts circuit breakers 12 and 14 to ON and OFF
positions (WP 0008), check if crew cab air conditioner control contactor operates.
If crew cab air conditioner control contactor operates, go to Step 26.