I have a 2008 Exmark Lazer Z. The left wheel will not move under a load, it moves fine when off the ground. Have changes oil and filter. Thought at first it was the pump but later found out that the wheel motor had a broken drive link. Fixed the motor and now this. Any tips will be greatly appreciated. Also when under a load there is a winding noise coming from the pump when in forward but not reverse or when lifter off the ground.
