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2630 Hydraulic Gremlins

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Rob Maloney

Member
Finally, finally, after months of head scratching and cussing I think my 2630 hydraulic problems are over (for now). Wife's step-dad and I pulled the rockshaft and put in new seals (it had a small chipped cavity inside the cylinder that he repaired with JB Weld). How this happened is beyond me. This stopped the misting under the fill cap. Secondly, he pulled the steering valve and rebuilt. Said it was a real pain in the buttocks. Had to "blindly" put in new shims that were busted as none of the manuals give instruction...even had a JD manual from a dealership. Why do these shims break? Can I count on this happening again in the near future? There was also a broken piston ring in the steering valve. Any comments or advice on these 2630 steering valves would be appreciated greatly. Should I think about trading this 2630 with loader while everything is working, or should I have a good tractor for years to come? This appears to be the downfall in an otherwise pretty solid tractor. Thanks.
 

I'd guess now that the internal leaks are repaired your good to go for a while.

Basically the steering valve was pretty much the same on all Dubuque/Mannheim utility tractors until the 50/55 series except for the open-center hyd models.
 
Jim is right about the "for now" part.. Now move it to a different zip code and get a 5 or 6000 series and get away from that Dubugue night mare system, your life will be better.
 

Tim
I'm different from you as I'd take my chances with a 2630 over a JD 5000 series. My neighbor has a 5603 that I would have if it was FREE. I had another neighbor with a 5200 that one needed to resemble the Incredible Hulk to depress the clutch pedal.
 
The only thing that I have had to do on them around here is replacing the clutch,,the only thing that I "don't" have to do on older Dubuque tractors is change the steering wheel...
 
That's what I'm think'in,,,But no matter "who" owns them we still gotta work on them, and like Jim said it keeps my bills paid....
 
dumb operators and old tractors keep me off the street 3 in the shop bale out side need a roller put back in and a irrigation pump that need rebuilt before it get dry around here plus a combine or two in the field wating for dry weather
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a tb100 blown engine 656 ta leak and 986 bad engine
 
Jim,
So should I expect more hydraulic trouble within the next 500 hours? I'm not a mechanic, but my wife's stepdad is by trade (red, not green). Most of the "green" shops just shrugged their shoulders and went on. I guess I don't understand why Deere used shims in these valves instead of designing them within tolerance to begin with. He explained to me that when one of the shims broke, it cracked one of the o-rings, and that's where internal leak came from. Still don't know how/why the piston ring in the steering valve broke. Any comments/suggestions are greatly appreciated. I have a mint tied up in this 2630 and would like to keep it, but not if it's gonna just be a continual pain in the a--. Thanks.
 

Rob
Any new or used tractor is subject to break because it has moving parts. It's hard over the internet to ascertain condition of your 2630 but over all 2630's weren't bad tractors. The shims in the steering valve set the 2 valve bodies in the correct places to direct the oil for a right or left turn. I for one think JD engineers made some of JD's steering/scv valves overly complicated but far from impossible to repair. If you like the tractor and the steering valve was repaired correctly then if I were you I'd use the tractor.
 
Jim,
Thanks for your reply. I think there have been lots of rinky-dink mechanics that have fumbled around in this thing before I bought it. My main concern is, now that these things are fixed, that it won't continue to be a nagging nuisance every time I turn around. This tractor basically has two rolls in life: it loads dirt and it saves my back by loading and unloading heavy stuff I don't want to lift myself. It doesn't do any cutting, plowing or any other hard-duty work--it lives a charmed life. Secondly, any idea what a nice 2630 with 145 loader is worth for insurance purposes? Thanks.
 

As far as value location comes into the picture. Down here in Texas a nice clean 2630/145 loader will bring between 9K-12K. You could check Machinefinder.com,Tractor house.com or Fastline.com.
 
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