Model 90 Skid Steer Issue

fixer2u · Jun 16, 2017

Hey all, I have a model 90 skid steer that has an odd issue... One half will sometimes get stuck in one direction of the other. There is no binding of the linkage, it seems like there is a valve or something that gets stuck and it will want to drive in a circle until you disengage the drive belt and slam it back in.. It will work just fine for a moment or 2 and then the same thing again. Sometimes it gets stuck in forward and sometimes in reverse. It seems like it happens more on the left side than the right.

Does anyone have experience working on one of these?

fixer2u · Jun 17, 2017

Anyone have any ideas?

coonie minnie · Jun 18, 2017

Sorry we are not much help. Those loaders were made by Owatanna (sp??). We had a 60 back in the day. On a good day, it was faster than a pitchfork. There were quite a few days that weren't "good" however.

It's been a LONG time since I had to deal with that thing. I'm thinking there is something wrong with the valves that control the motion. Are parts still available???

fixer2u · Jun 19, 2017

Looks like quite a few parts are available. I am finding this little guy pretty useful actually... When it works right.

I am just looking for a starting point, I agree it does seem like a valve issue, I just do not know where to look. There are parts diagrams on JD Parts, but I am failing to see any check valves in the hydrostatic system....

Brian Ski · Jun 15, 2019

I have a JD90 also, Mine works but the valve body leaks. I am guessing yours may be a bad valve body. Did you ever fix the problem? I see the post is about 2 years old.

BTW you mentioned parts available. Do you know anyone that would have a valve body??

Model 90 Skid Steer Issue

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coonie minnie

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