Hello, Trying to figure out if my tandem back pump is bad or what might be the problem. I can pull on servo valve with my hand while motor is running and make arm from pump pull forward and nothing happens not even a sound comes from it, no whining or nothing.
Pump drive coupler between pumps and engine has failed more than likely. I bet you have no lift, tilt, or drive.
I have everything except for right wheels driving. Sorry I was wrong I have hydraulic assist on my machine and not servos. I think maybe arm coming off of rod on side back pump might have striped or something in hydraulic assist went wrong.