Remove nine screws and washers and remove panel from operator station.
Touch positive (+) probe of multimeter to input terminal (wire 109-OR).
Touch negative (-) probe of multimeter to good ground.
If 24 to 28 VDC are not measured at input terminal (wire 109-OR), repair or replace
If 24 to 28 VDC are measured at input terminal (wire 109-OR), go to next malfunction.
HARNESS MAIN RELAY
Figure 6. Main Relay Wiring.