Problem: 1985 Champion 720A motor grader when I turn on the isolation switch, the control/gear box lights up on the display and it won’t start.
Before I started working on it, the grader kept stalling when in operation giving me error codes 2.7 (No power to solenoid circuits) and 4.2 (Neutral restart error).
What I’ve Done:
Before I started working on it, the grader kept stalling when in operation giving me error codes 2.7 (No power to solenoid circuits) and 4.2 (Neutral restart error).
What I’ve Done:
- I have just replaced solenoids A and B, they click when I turn the key switch on.
- I tried checking the starter and solenoid assembly using the screwdriver trick and it only sparks (the solenoid doesn’t engage).
- Using a multimeter, I’ve tested the lower terminal on the starter solenoid and grounding the other test lead to the alternator with no continuity.
Champion 700 Series Electrical Schematic
Any help would be appreciated, thanks!
Any help would be appreciated, thanks!
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