|
| |
TM 5-4210-233-14&P-1
4-2. Unit Troubleshooting-Continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
ELECTRICAL SYSTEM - APU AND 11O-VOLT CIRCUITS - Continued
7
NO POWER AT LADDER TIP OUTLET
(Refer to Electrical Wiring Diagrams, Appendix H, Sheet 15 of 16.)
Step 1. Check aerial control panel switch for proper operation.
Replace switch (see para 4-179).
Step 2. Check turntable slip rings for continuity.
Replace swivel unit. Notify Direct Support.
Step 3. Refer to 1 OV outlet troubleshooting procedure.
8
11OV PORTABLE WORK LIGHT DOES NOT ILLUMINATE WITH CAB SWITCH
(Refer to Electrical Wiring Diagrams, Appendix H, Sheet 15 of 16.)
Step 1. Check floodlight bulb.
Replace bulb (see para 4-124).
Step 2. Check relay for proper operation.
Replace relay (see para 4-9.4)
Step 3. Check circuit breaker.
Reset/replace breaker (see para 4-119).
Step 4. Check dash panel switch for proper operation.
Replace switch (see para 4-94).
Step 5. Check breaker #14 on battery accessory buss for +12V.
Replace breaker (see para 4-99).
4-145
|
