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Case Tractors Discussion Forum
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Case 310 clutch

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Bruce Brurud

09-02-2003 12:33:18




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I've got a Case with a clutch problem that I had given up on, now that I've found you guys, maybe I can try fixing it again! As far as I can tell, it's a 310B with the Case-O-Matic tranny. Several years ago, I had to replace the hydralic pump in the transmission. After replacing it, the clutch had turned into one that is either engaged or dis-engaged. No in between, no slipping the clutch, etc. I pulled the pump several times, checked and cleaned all the hydraulic passages, checked the pressures (they were OK), and asked every tractor guy I met but never did find out what the problem might be. Hooking up to implements without a clutch is a real pain and I'd really like to fix it. Anybody out there have any ideas? Thanks!

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george md

09-02-2003 19:23:55




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 Re: Case 310 clutch in reply to Bruce Brurud, 09-02-2003 12:33:18  
Bruce, There will be no free pedal or resistance in the normal way that you feel a clutch. When you push the pedal ,all you are doing is moving a spool in the control valve. It seems that the main clutch never releases completely , the oil film in between the discs
make it drag.

george



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Bruce

09-03-2003 07:49:27




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 Re: Re: Case 310 clutch in reply to george md, 09-02-2003 19:23:55  
George,

I played with the tractor some last night and it acts just like you're describing. The only thing is that I can't stop it in 1st or reverse. Maybe it's time to reline the brakes and quit worrying about the clutch. Now that I think about it, slowing down the idle might help too. Thanks again!

Bruce



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Bruce Brurud

09-02-2003 17:39:35




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 Re: Case 310 clutch in reply to Bruce Brurud, 09-02-2003 12:33:18  
George, Thanks for the fast reply. Now it sounds like maybe I've got a different problem than I thought. I expect that the lever on the dash is what is supposed to unlock the C-O-M, and it does seem to work aproximately like you described. However, it doesn't really completly unlock. I always get a lurch forward when I let out the clutch, even when I'm standing on the brakes for all I'm worth. Maybe if I start out in 3rd gear, it will work as described, I'll try it tonight when I get home. Also, I forgot to mention that there is almost no "pedal feel" on the clutch. There isn't any resistance when I push the clutch in, it just "goes to the floor" Thanks again for the help!

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george md

09-02-2003 12:56:38




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 Re: Case 310 clutch in reply to Bruce Brurud, 09-02-2003 12:33:18  
Bruce, Sounds like the clutch is working properly now , it should never slip . Unlock the case o matic , let the clutch up , back up to an implement slowly by holding the brakes basically
like you would a car or pick up with automatic transmission. After you are in motion then lock
up the c-o-m for direct drive , the second clutch locks the converter so that it cannot function
as a torque-converter .The clutch that is controlled by the clutch pedal is a multiple disc
metal clutch that should not be slipped. The one
controlled by the c-o-m lever is a single disc in
the front of the converter that locks the two parts together for direct drive. george

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