Decelerator or Hand Throttle (STD cab) Position potentiometer voltage is too low
High range clutch is not calibrated
Aux 3rd Lower solenoid failed open or short circuit.
Low pressure switch (-) input shorted to power
Foot Throttle Position potentiometer voltage is too low (engine controller pin B30)
High range clutch is not calibrated
Like Simpson Jumbo vehicles, A battery provides the power to the tractor's engine. once the tractor has electrical issues, you need to begin by checking out the battery. Examine the posts and cables to form sure they're free of scrap and deposits. If the battery doesn't seem to be operating properly, you'll got to decision within the consultants.