Hydrostatic Drive for X900 RTV

[JimE]

The machine stopped moving in either forward or reverse. Did some trouble shooting and discovered there was no charge pump pressure. Oil level was good. Relief valve was inspected and all good. Removed charge pump housing and found some scoring on the housing face and some damage to the pump’s inner and outer components. See attached pics. Bought the entire assembly and replaced. Still no pressure???? Any thoughts on what to do next would be appreciated.

 

[lugbolt]

is there a hydraulic tank under the seat? Is it full? Is the outlet flowing good? I've seen a few 1100s with the outlet hose kinked, loose, leaking air into it, etc-all will cause issues.

 

[JimE]

is there a hydraulic tank under the seat? Is it full? Is the outlet flowing good? I've seen a few 1100s with the outlet hose kinked, loose, leaking air into it, etc-all will cause issues.

The machine stopped moving in either forward or reverse. Did some trouble shooting and discovered there was no charge pump pressure. Oil level was good. Relief valve was inspected and all good. Removed charge pump housing and found some scoring on the housing face and some damage to the pump’s inner and outer components. See attached pics. Bought the entire assembly and replaced. Still no pressure???? Any thoughts on what to do next would be appreciated.

is there a hydraulic tank under the seat? Is it full? Is the outlet flowing good? I've seen a few 1100s with the outlet hose kinked, loose, leaking air into it, etc-all will cause issues.

There is a hyd oil tank under the seat, level was check and all good. I will check flow out this weekend when I get to camp. Will let you know what I find. Thx

 

[lugbolt]

also make sure you pull the screen out of the bottom of the tank and clean it.

 

[whitetiger]

Does your power steering work?