JD 4600 danfoss steering valve seal replacement

wthompson · Jan 1, 2014

Anyone ever replaced the seals in these? Mines a danfoss 150L0055. It started leaking from under the steering wheel so i removed the steering wheel and boot, leaking oil from dust seal. I took it apart and there's a blue colored plastic seal with o-ring on it. JD says not serviceable:thumbdown:... Anyone have any info?
Can't see paying $750.00 for a new one. Thanks for any help.

Cocre · Jan 1, 2014

Two new "out-of-box" on eBay now for $199 each. Search Danfoss 150L0055.

wthompson · Jan 3, 2014

Did some research(google) and found the danfoss pdf parts list and diagram for these steering valves. My local hydraulic repair shop ordered it for me, cost $75.00. Danfoss part #150L4054

This is how i repaired it...
Removed steering valve and marked side with paint marker where it seperates. Use a pick and remove dust seal on steering shaft. Took a picture of where the fittings are, one is a blank, two small and two large ports. The fittings thread in and hold the two halves together. Once you get the fittings out, yu can pull the two halves apart. Keep the valve upside down, if you turn it up like it fits in the tractor it will fall apart. I used my table that has a hole it for the steering shaft to fit thru. While removing the half the fittings came out of make sure the driveshaft comes with it and do not turn it. Lay it in a safe place. Now you can push the steering shaft up and out. There is a bearing and two washers that have to come out then you can remove the blue colored seal with oring. Install the new seal ( i used my fingers to press it in) and reassemble.

Attached pdf i found and a picture of seal kit.

Hope this helps someone else.

Tx Jim · Jan 4, 2014

wthompson
If it's as easy as you describe to R&R seal it makes one wonder why tractor manufactures don't offer the seal kit in their parts dept.?? That sounds easier than resealing/adjusting the steering on a 4020.

wthompson · Jan 5, 2014

After searching i found that Massey Ferguson offers the seal kit for some of its tractors.
My dad has a JD4020, never had to reseal the steering so i can't compare. It really was not that hard at all. When climbing on the tractor do not use the steering to pull yourself up, this is what i believe caused mine to start leaking.

hills · Feb 10, 2014

We just did the same thing. My buddy put an off the shelf ring in and it doesn't leak. my problem is that i have crossed the lines and haven't figured out how to reconnect yet. Don't know the size ring tho. he mic'ed it . don't know how long t will last, my JD people quoted me $950. That sucks for a 50 cent ring. Danfoss won't sell it either. Where can I get a drawing of e hose connection from the pump to the metal lines?