John Deere Model 70 Skid Steer Hydraulic Problem

[igolf2]

Recently bought an old JD Skid Steer - it worked until I followed the manual instructions and replaced the 2 hydraulic filters - now I have no hydraulics, if I press the foot pedals in the back position (lift and bucket tilt) I can move forward/reverse and turn but boom/bucket doesn't work at all but when I release the foot pedals no movement forward.reverse etc. Added fluid so dipstick shows full. Any suggestions/help would be appreciated. Thanks!!! Gary

 

[walio123]

Do you remove hoses when changing filters? Is it possible to exchange some? If you are not, maybe you did not put the correct filters. In some of the filters there are one way valves, this can also be a reason. If you keep old filters, try with them, if the machine goes, then the filters are not correctly selected.

 

[Tazza]

Do you remove hoses when changing filters? Is it possible to exchange some? If you are not, maybe you did not put the correct filters. In some of the filters there are one way valves, this can also be a reason. If you keep old filters, try with them, if the machine goes, then the filters are not correctly selected.

That's an odd one, changing a filter will bring some air into the system, but the pumps will still have oil in them to start pumping and clear the air over time.