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Author
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Topic: Super Dexta clutch
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Ian Chard
True Blue Posts: 6
From: Fingal Ontario Canada
Registered: Dec 2006
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posted December 08, 2006 15:15
   
Good day from snowy Canada(4ft. yesterday!)Anyone have any experience overhauling Super Dexta live pto clutch without all the special tools ?IP: Logged |
tmac
True Blue Posts: 465
From: USA Washington state
Registered: Jul 2002
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posted December 11, 2006 18:53
Yes it can be done, I replaced the discs in my dexta a couple of years ago, when the pto clutch center broke out, using only hand tools and some quickly fabbed up tools, some C clamps and dial caliper. While it may not have been as easy as with the right tools I got it set just right and the clutch has never better. A good engine valve spring copressor would have been of a big help. I think I have some pics of the job, somewhere. Make sure you replace the spring retainers with new one though. Ajustments on the clearance screws can be a problem because the new discs can be slightky thicker than old discs were when they were new. By the way get NEW discs not REBUILT as the center splines wear and metal fatigue sets in the spring metal center drives. That is what happened to my PTO disc when the center failed rebuilts were put in when the engine was OHd by the previous owner. Ill look up where I bought mine cost about $60 each and were NEW. Will post the sellers phone here. quote:
Originally posted by Ian Chard:
Good day from snowy Canada(4ft. yesterday!)Anyone have any experience overhauling Super Dexta live pto clutch without all the special tools ?
[This message has been edited by tmac (edited December 11, 2006).] IP: Logged |
tmac
True Blue Posts: 465
From: USA Washington state
Registered: Jul 2002
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posted December 11, 2006 19:24
BUY DISCS HERE
noltens@ktis.net
Their address is: Rhine Valley Farm & Home
814 Hwy 94
Rhineland, MO 65069
noltens@ktis.net
Their number is 573-236-4511.
These people can supply clutch PARTS
You should install New spring retainers (duplex)
They have Them
John Andreotti
Director of Information
Ott's Friction Supply
Portland, OR
(503) 283-4165
andreotti@ottsfrictionsupply.com
IP: Logged |
Ian Chard
True Blue Posts: 6
From: Fingal Ontario Canada
Registered: Dec 2006
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posted December 12, 2006 15:39
Thanks for the info.I do have a good valve spring compressor.Currently have clutch sitting on my workbench.Because rear engine oil seal failed(wore out)main clutch is oil impregnated & although it was not slipping i feel i need to replace it while i have the tractor apart. Regards--IanIP: Logged |
tmac
True Blue Posts: 465
From: USA Washington state
Registered: Jul 2002
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posted December 12, 2006 18:17
Well in that case I would just replace the discs and dont touch any of the adjustments the Discs HAVE to be replaced as a pair not just one. Make sure that you dont have broken retainers and make sure they are FLAT not dished. If they are you can flatten them they seem to be soft but if you do flaten them check for any apperance of stress cracks. The hardest part will be centering the discs together I used the trans shafts to do this while still in the tractor. Check the ajustment screws for head wear, measure there height from the finger and write it down number the fingers with a marker pen use those numbers to index your measurements to the readings. Measure from the top of the heads. Here comes the bad part of not having the jig you will have to install the clutch in the tractor and test by depression before complete assembly. In testing with the clutch depressed the power shaft should be somewhat stiff to turn by hand with a a short plyer or tool handle. If it either turns to easy or not at all you will need to break the tractor again and adjust the screws. Ajust the screws sparingly like a 1/8 to 1/4 turn at a time a little makes a LOT of difference Iam trying to remember this process so bear with me. My clutches turned out so good that I havent found another that works as good.  )
quote:
Originally posted by Ian Chard:
Thanks for the info.I do have a good valve spring compressor.Currently have clutch sitting on my workbench.Because rear engine oil seal failed(wore out)main clutch is oil impregnated & although it was not slipping i feel i need to replace it while i have the tractor apart. Regards--Ian
[This message has been edited by tmac (edited December 13, 2006).] IP: Logged |
Ian Chard
True Blue Posts: 6
From: Fingal Ontario Canada
Registered: Dec 2006
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posted December 15, 2006 15:44
Again, thanks for info.I did find an article in the April 2006 issue of "Tractor" magazine which covered ways to check clutch operation during assembly of tractor. Clutch adjusting screws are somewhat worn (2 out of 3)so i will replace these. The tach. on this tractor stopped at 6900 hrs.& i have been using it to run a 6ft. bushog chopper doing rough grass cutting for property developers for the last 4 years until finally more smoke started coming out of the breather pipe than the exhaust! Hence the engine rebuild. Complements of the season--Merry Christmas to one & all--Ian.IP: Logged |
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