Bobcat four wheel steer speed problem - need help.

[tomslattery]

Hi, a friend of mine has a problem with his Bobcat. As the engine revs it changes forward speed. He took it to a repair shop and they changed the joysticks to no avail. They then changed the ECU to no avail. It has cost a fortune. My thought is that this is a problem with the hydrostatic control valve. Does anyone have experience with this type of problem? Thanks. Tom

 

[Eric]

Your question is kinda confusing. As you increase the rpms of the motor, the machine will travel faster. Do you mean that when when the engine revs up, the machine creeps forward without moving the steering levers?

 

[tomslattery]

Your question is kinda confusing. As you increase the rpms of the motor, the machine will travel faster. Do you mean that when when the engine revs up, the machine creeps forward without moving the steering levers?

Hi Eric, I mean that it changes through the hydrostatic ranges. The garage want to change the ECU again.