CK20S no power steering, loader or backhoe but moves

[Greg9504]

Hi,
Neighbours CK20S is having hydraulic issues. All at once the loader, backhoe and power steering stopped working. It is an HST transmission and it can move forward and reverse. Any ideas where to look?

At the time he was pulling up t posts with the loader, so it was probably under a good load.

Thanks
Greg.

 

[J_J]

Use a 3000 psi hyd gage and check the relief pressure.

Check all the filters.

Check fluid level.

Check for pump flow.

 

[Greg9504]

FWIW there is no relief bypass noise when any of the valves are moved, fluid level shows full. Haven't checked pressure. Is there a test port ? What type of threads do the hydraulics use?

I assume the pump on the right side of the engine is the one that drives all the hydraulics?

Thanks.
Greg.

 

[J_J]

You can install a 3000 psi gage in a tee at the IN port of the loader valve and read the pressure for any attachment operation.

 

[Leroy Brown]

I just had similar issues with my CK 20. It turned out to be the HYD pump. It's in the shop now. Pump is around $500. With labor and I'm having liquid added to rear tires. The bill is expected to be $1200.