l245dt loader valve

bky · Feb 20, 2022

I am having hydraulic isses 3point wont rase but the loader does if i rev the engine, ive cleaned and replaced the suction screen and changed the pump that's mounted on the engine, the loader valve has a sounds like the fluid is by passing, what loader valve could i get to replace the one that's on it. it has 2 levers and float.i will include picture.
thanks

Bil

oldnslo · Feb 20, 2022

Bill
I would first look at existing valve to see if it has a relief valve built in. On your picture I think it is in the far back corner but not sure. If this stuck open it would limit loader lift and 3 PH function.

second would be to check if that valve has power beyond plug with O-ring seals. These can also go bad over time and leak oil back to tank. This should not affect loader operations though.

Leejohn · Feb 21, 2022

Try this 1st, take loader all the way up and dead head it for a few sec.
That well flush the relief valve, maybe something got it stuck open.

bky · Feb 21, 2022

oldnslo said:
Bill
I would first look at existing valve to see if it has a relief valve built in. On your picture I think it is in the far back corner but not sure. If this stuck open it would limit loader lift and 3 PH function.

second would be to check if that valve has power beyond plug with O-ring seals. These can also go bad over time and leak oil back to tank. This should not affect loader operations though.

Oldnslo i stalled a pressure gauge in the inlet pot of the loader valve and pressure wouldn't get above 400 psi. i then removed the relief on the loader and found small chips of metal in the end of it, after cleaning and blowing out the valve and reinstalling it the loader preformed as it should. I then attached the box blade and it went up , the pressure rose to 400 psi with the box blade all the way up.
when testing the loader, pressure rose to 1500 psi with the tractor at 500 rpm and the loader all the way up.
Around 6 months ago i had a bearing fail in the rear end and the fragment of it must have found its way past the case screen to the relief.
it all seams well now and a big thank you for the help.
Bill