1/20/2014 6:01 AM
If it's not the tires, jack up the unit and check all 3 wheel motors for play. If you find any movement at all you will want to replace that wheel motor, or you can try to have it rebuilt. Depending on the hours, replacement will be your best bet. If the motor comes apart all that debris will go through your hydraulic system and your done at that point. Just the way those units were designed. For best maintenance practices, get yourself a high pressure hydraulic filter and housing, set up with lines and hook to the rear wheel motor for service only. With the machine jacked up stroke the pedal in reverse at 1/4 to 1/2 throttle and let cycle for 15 to 20 minutes. This will filter out any debris in your system. about once every 200 to 300 hours is good. Checking wheel motors during every service is a good habit to be in on these machines. The reason I mention the wheel motors is if one has too much blow-by/wear, your hydraulics will go to the point of least resistance, and could cause your rear wheel to drag if the problem exist in the front motor/motors. Worth checking.