JD 850 hydraulic diverter valve - where to find replacement

[kawillco]

I have an 850 with a loader and the loader stopped working suddenly, not enough pressure to lift arms. I couldn't figure it out so it's at the dealer. They said the diverter valve is bad and not sending enough pressure. They said it's a replace only part (can't rebuild) and they can't find one. The part number is AR93303. Anyone know where I can get one, new or used?

 

[Zebrafive]

JD dealer can check other JD dealers inventory for NLA parts. Did your dealer do this?
Next option is tractor salvage yard.

 

[CADplans]

That guy that only wants to sell says "replace only!"

Well, take the part to a hydraulics shop,, those guys fix most anything hydraulic,,,
it don't cost anything to try,,,

 

[kawillco]

He said he s been looking for a month and has calls into afew salvage yards. I'll go by there and get the part and see if I can find someone to rebuild it.

 

[wsguerin]

Kawillco: I also have an 850 and after changing sludgy oil out, the bucket and 3-point lift stopped working. Did you find a replacement diverter valve? I had good luck with Worthington Tractor Parts. A nationwide chain with good computerized inventory.

LMK

 

[wsguerin]

Follow on to my Diverter valve question: How do I know it's not the hydraulic fluid pump versus the valve? TX in advance for advice

 

[kawillco]

I got my tractor back from the JD dealer and I took the divertor valve off and apart hoping to find some piece of gunk or other obvious problems. I don't find anything other than water contaminated hydraulic fluid. I found this post on this forum that I thought would be my answer but the pictures are no longer hosted and I can't find a part number for an o ring kit. Tractorbynet.com/forums/hydraulics/141543-jd-950-power-steering-hydaulics.htm

The dealer said they pressure tested everything and tracked the problem back to the diverter valve, its like the valve is just dumping pressure back to the reservoir rather than the power steering or the attachments.

 

[wsguerin]

Man do I know from water contaminated fluid. My screen gets so clogged with gunk nothing works but yeah, this seems to be this valve, pic attached

 

[kawillco]

Yep that's the one, same part number. My 3 point still works, the power steering only works to the right and the bucket will dump and curl slowly but the loader won't lift. I pulled that whole valve apart and can't figure out how it's suposed to work or what is stuck or not working right.