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Major problem with 318

4975 Views 21 Replies 10 Participants Last post by  900thun
Well I want to say this is my first post on any tractor forum. I bought my tractor with 600 hours from a coworker. The only thing wrong with it was the paint was starting to chip since it was left outside in the cold Maine winters. I have done a dramatic restoration, paint job,degreased frame, new tires, controls, etc.

Right now I'm having a hard time trying to diagnose what the problem is now. This winter I was very low on hydro fluid, I read somewhere that I could add trans fluid dexron 3 to he hydro fluid. I added it and it seemed to be fine and then I noticed the reverse speed was slower. Not sure if this was related to he difference in fluid.

Second issue is that when I move the throttle forward or reverse there is a jerking motion that is quite severe. I checked the linkage and I didn't seem to notice anything out of the norm. But I'm not quite sure what to look at.

Third issue is that when the tractor is off I can just roll it around. Is this a normal thing. for some reason I thought it should not move at all. What could cause this to happen.

Thank you for all the help. I'm trying to keep this tractor in tip top shape
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Welcome to the WFM forums and to owning a classic Deere tractor.

Even if you don't or can't upgrade to the REV4 linkage, doing the maintenance to ensure all the wear is removed from your linkage and renewing even the stock dampener will vastly improve your jerkiness issues, as RLC mentions above.

Because wear in the hydro linkages can also cause variation in ground speed with grade (slowing going uphill...etc.) you should ensure all wear is addressed with new or repaired parts. There are many good threads in the archives on addressing linkage wear and replacing the dampener to address this jerky behavior. Here are a few examples -- some have links to other threads in them:

...that last one has some good photos of typical linkage wear points.

I will email you some other info as well...

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