Need the 3PT relief valve location on a B2710: Kubota Review  -- Kubota Tractors Discussion Forum and Review Need the 3PT relief valve location on a B2710: Kubota Review -- Kubota Tractors Discussion Forum

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 10-29-2000, 12:51 Post: 20995
KlayW in MI



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 Need the 3PT relief valve location on a B2710

The 3pt suddenly quit lifting after roto-tilling. I suspect the spring in thepressure relief valve or valve itself for the 3pt but it's not pointed out in the owners manual. Is this something I can fix or is it better left up to the dealer to warranty repair? Any help would be appreciated, thanks.






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 10-29-2000, 13:45 Post: 20999
Bird Senter

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 Need the 3PT relief valve location on a B2710

Klay, can you give us a little more information? I'm a long ways from being a tractor mechanic, but I'm inclined to doubt that the relief valve is the problem. However, if you want to know where it is, it's top right of the housing about the next thing in front of the hydraulic oil fill plug. I'm guessing that you have not tightened the 3-point hitch lowering speed knob all the way down, which could cause a problem. But do you have a front end loader? Sometimes the joystick is not exactly centered, i.e., a valve is just open a tiny bit and you don't notice it, but the 3-point will not raise. So the first thing I'd try is just wiggling the joystick a bit (if you have a front end loader), then try the 3-point again.






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 10-29-2000, 17:42 Post: 21006
Elkoboy



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 Need the 3PT relief valve location on a B2710

I had a B2910 under warranty that had a sticking valve in the 3 point unit that caused it to be inoperative and was replaced by my dealer. My dealer told me that after numerous inquiries to Kubota he finally found someone who admitted that they had a manufacturing defect with a valve in the 3 point unit and had made a lot of replacements.

Not sure of the exact valve they're talking of, and if it's the same unit as in the B2710, but since mine has been replaced I have had no problems. You might want to talk to your dealer if you're still under warranty and see what he says.






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 10-30-2000, 08:40 Post: 21026
TomG

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 Need the 3PT relief valve location on a B2710

I can't say about your tractor, but my Ford 1710 has a relief valve in the 3ph in addition to the main relief valve on the side of the engine. I'd check Bird's suggestions, because he hit every reason why I thought my 3ph didn't work when it actually did. So, if Bird's suggestions all check out, and the loader works but the 3ph doesn't, then the problem may well be a relief valve in the hitch.






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 10-30-2000, 09:29 Post: 21028
Murf

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 Need the 3PT relief valve location on a B2710

There is an easy (and surprisingly inexpensive) way to determine/diagnose the cause of the problem. A hydraulic pressure guage (about $20 at any supply house, and probably a big auto parts house) with a capacity to read to at LEAST 3000psi (preferably 5000psi) screwed into a fitting in place of a hose that should be pressurised will tell you a lot, like if you have pressure or not and how much. A lot of 'old-timers' will tell you to just back off a line like you would to bleed the fuel injectors, but, DO NOT DO THIS!!!!!! The fluid may be hot, and if there is pressure in that line or suddenly let into that line the results could be FATAL, certainly unpleasant. Normally pressure-relief valves do not 'fail' they merely get stuck open by some debris that has by-passed the filter. Try changing the filter and back-flushing the system before you try anything else. Best of luck.






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Discussion Boards > Active Subjects > Messages as Posted > Kubota Review Forum

Thread 20995 Filter by Poster:
Bird Senter 1 | Elkoboy 1 | KlayW in MI 1 | Murf 1 | TomG 1 |




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