Woods Backhoe BH80X lost swing

[kleduc1]

I have a '12 Kubota L3240 with a Woods BH80X backhoe that lost its swing to the left while very light stumping. Seemed bound up and hydraulics struggled with that function only (all other levers/pistons continue to work properly). I removed the piston pins to the BH and boom moves freely. It is a double piston push/pull setup. The right (looking down from the seat) piston does not extend under hydro pressure, but I can push it back in by hand with engine off and pushing the control stick. Wondering if the internal piston seals have failed, or something in the valve control body (like debris or seals).

Thanks for the help!

 

[TheOldHokie]

I have a '12 Kubota L3240 with a Woods BH80X backhoe that lost its swing to the left while very light stumping. Seemed bound up and hydraulics struggled with that function only (all other levers/pistons continue to work properly). I removed the piston pins to the BH and boom moves freely. It is a double piston push/pull setup. The right (looking down from the seat) piston does not extend under hydro pressure, but I can push it back in by hand with engine off and pushing the control stick. Wondering if the internal piston seals have failed, or something in the valve control body (like debris or seals).

Thanks for the help!

Like anything else test the hydraulic work circuit for that function. Measure hydraulic pressure on both hoses. That will tell a big part of the story

If you had a Kubota hoe it would have port reliefs on those hoses and they are a common point of failure. I would think Woods uses port reliefs as well but that is pure speculation.

Dan