I dont't think there is any potentiometer on the wheel, but there is electronic plate, under radio, whitch has three potentiometers on it. Also I am not sure about three buttons (red and green ) beside radio. Your machine is yunger, i gues it is much more simple.
Hello, I see interesting topic about PB 170 manual.
I have PB 170 D from 1986, but manual book from PB200. They are very similar but some things are different. Can anyone help with this?
In this moment I am having a trouble with third "working " hidraulic pump, how to reduce rpm of attached machine.
Hello, solved your valve problem?I can maybe explain the 3 potentiometers on the chip under radio. The biggest one is for steering, you will calibrate so the groomer goes straight ahead. The other two is, one for the maximum rpm for engine and the other one for wich rpm the hydraulic should goes on. If you have the other one on lets say 1400rpm, even with the forward gear in, the hydraulic dosent do anything before you rise the rpm to over 1400rpm. So you should can stand still with engine even if gear forward or backward is on so long the rpm on engine is lower then you have put the potentiometer on. I had big problem with the moogvalve on the hydraulic pump, one of the electric spools in the burned up so I got an specialist to make a new one.