bush hog 2346QT loader problem

[joco]

loader suddenly became sluggish and rear 3 pt lift stopped working. when loader is un hooked and lines on tractor connected to complete circuit rear lift works good. hook loader back up and it barely works and rear lift doesnt work at all.
loader is on a JD 2010 tractor. any ideas?

 

[J_J]

Check the QD 's for proper operation.

Check fluid levels.

However, with all valves in neutral, and connected correctly, the 3pt should work correctly.

If the 3pt does not work after connecting the loader, then you have some hoses crossed, or not using the correct ports.

 

[joco]

loader has been on tractor for two years with no problem. loader stopped working suddenly. had line made to make circuit when loader is unhooked and 3pt works when it is installed. hook up loader and it trys to work and 3pt wont work at all. havent changed any connections. marked all hoses befor unhooked

 

[J_J]

If your hyd system is an open center hyd system, and all valves are connected in series correctly, then with all valves in neutral, the pump is just pumping fluid through all valves and to tank.

Typically the hyd fluid would flow from the pump to the FEL valve and then to 3pt and then to tank.

Install a hyd pressure gage at the IN port of the FEL valve and take some readings.

A flow and pressure test would be good.

So if fluid is flowing through the FEL valve, and out the PB port, then the 3pt should work, and you can verify if pressure is being developed. The OUT port should go to tank/return hose.

It sounds like the FEL OUT port and the PB port is not connected correctly.

Can you show some pictures of the PB side of the valve and where the hoses go to?

 

[joco]

yes, will try to send pics tomorrow