|
| |
TM 5-4210-233-14&P-1
Table 4-2.
Unit Troubleshooting-Continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
ELECTRICAL SYSTEM-CAB CONTROLS AND INDICATORS-Continued
23
INTER-AXLE LOCKOUT INDICATOR DOES NOT ILLUMINATE WHEN AXLES ARE LOCKED
(Refer to Electrical Wiring Diagrams, Appendix H, Sheet 2 of 16.)
Step 1.
Check bulb.
Replace bulb (see para 4-95).
Step 2.
Check under dash PSI switch for proper operation.
Replace switch (see para 4-9.4).
Step 3.
Check for +12V at circuit breaker #5 on ignition buss.
Replace breaker (see para 4-99).
Step 4.
Check wiring for continuity.
Replace wire (see para 4-9.4).
24
CAB HEATER FAN DOES NOT OPERATE
(Refer to Electrical Wiring Diagrams, Appendix H, Sheet 3 of 16.)
Step 1.
Check blower motor for proper ground.
Repair ground (see para 4-9.4).
Step 2.
Check blower motor.
Replace blower motor (see para 4-9.4).
Step 3.
Check switch.
Replace switch (see para 4-102).
Step 4.
Check for +12V at circuit breaker #3 on ignition accessory buss.
Replace breaker (see para 4-99).
Step 5.
Check wiring for continuity.
Replace wire (see para 4-9.4).
4-89
|
