nwterex
Bronze Member
Sounds to me like the resolver Block in the JoyStick. You may be able to get a used one from your dealer. It also could be a drive motor. If your dealer can't help you call Me I'll tell you how to check the drive motors.
wdchyd
Elite Member
Sounds to me like you need someone to troubleshoot/diagnose the hydrostat transmission
You'll need the manuals to do the proper pressure testing procedures and an experienced technician ........
You'll need the manuals to do the proper pressure testing procedures and an experienced technician ........
nwterex
Bronze Member
Of the 100 or So RC/PT 100 we've sold I don't think we ever had a Drive Pump failure. I've seen a couple of charge pumps and a couple of couplers fail if it was a coupler you'd have no hydraulics at all. Your dealer can easily check the pressures for you but my best guess is still a drive motor, Check the case drain flow on the drive motors 1st. If the steering is erratic it may also be the Resolver Block in the Joy Stick.