We have a problem with one of our dump trucks. The interlock would not engage yesterday, changed the
air switch up on the dash and it sounded like it started work again. We could hear the interlock engage and
disengaged when the switch was flipped. Figured it was good to go, but come to find out the truck will not
move now when the switch is in the disengaged (unlocked) position. The drive shaft is spinning but the front
rear end has no power. Truck will not move.