TM 5-3895-379-23-1
0029
TROUBLESHOOTING PROCEDURE
SYMPTOM
NO POWER TO ACCESSORIES WITH THE ENGINE RUNNING
MALFUNCTION
No Power At Main Relay From Alternator Relay.
CORRECTIVE ACTION
1.
Remove nine screws and washers and remove panel from operator station.
2.
Turn battery disconnect switch to ON position (TM 5-3895-379-10).
3.
Touch positive (+) probe of multimeter to input terminal of main relay (wire 109-OR).
4.
Touch negative (-) probe of multimeter to good ground.
If 24 to 28 VDC are not measured at input terminal of main relay (wire 109-OR), repair or
replace wire 109-OR and connectors (WP 0195).
SCREW
PANEL
ASSEMBLY
WASHER
WASHER
WIRE
112-PU
WIRE
SCREW
308-YL
MAIN
WIRE
RELAY
109-OR
HARNESS MAIN RELAY
CONNECTOR
OPERATOR CONNECTOR
STATION
T0122SWR
Figure 1. Main Relay Wiring.