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John Deere Tractors Discussion Forum
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Looking for used or new parts and clutch HELP!!

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Alex-41JDb

01-31-2007 09:49:58




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Rebuilt the cluch on my 41 B (New clutch drive, rebuilt crank, and new facings also rebuilt all linkages adn bushed linkage shafts) but didnt mess with the dogs, toggles and bolts. It will now engage which it didnt but will slip out unless you put your foot on it. So i think the wear in the Dogs and toggles is letting it slip out. I priced these parts at like 400 through mother deere. Are there any cheaper parts or does someone have good used. Also i would be open to buying a good used pulley with good guts. Lastly I was told that the pin in the pulley needs to be free of play so My dad welded it in place...good this be part of the problem?

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MyrlfromPA

02-01-2007 05:20:09




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 Re: Looking for used or new parts and clutch HELP! in reply to Alex-41JDb, 01-31-2007 09:49:58  
One other thing to look at is your endplay in your crankshaft. To much endplay will kick the clutch out.Snap clutch in and pull l;ightly on handle to feel endplay. One other thing I found on one of mine was the back floating disk was to thin (new one was no thicker than worn one) and i had a terrible time trying to adjust clutch. Finally glued to used ones together and that fixed that one. Good luck and keep us posted to what you find.

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DRL

01-31-2007 19:17:21




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 Re: Looking for used or new parts and clutch HELP! in reply to Alex-41JDb, 01-31-2007 09:49:58  
I went through a similar situation with my '44 B a while back. I went through EVERYTHING. Replaced/repaired all that was needed done and could not get a satisfactory adjustment. Would either snap in so hard that you like to never get it dis-engagaed, one castellation looser, and it would pop out. I belted the tractor up to a stationary baler for our show and ran the baler for the whole show. After that, the clutch was really loose and would not stay engaged. When I adjusted it this time it worked like a charm. I wonder if possibly the drive/crank splines were worn just enough to allow the drive disc to go further down the crank, or the fiber discs were a bit too thick to allow the clutch to adjust properly. After the discs wore down some (had to ease/slip the clutch until the baler gained momentum) there was enough clearance to allow for the proper adjustment. Just my observation, your mileage may vary.

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Alex-41JDb

01-31-2007 13:41:30




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 Re: Looking for used or new parts and clutch HELP! in reply to Alex-41JDb, 01-31-2007 09:49:58  
Thanks for the responses so far. It does snap in and engage. I played with backing the nuts tighter and looser but was never satisfied with it. I got them tight enough but then it wouldnt engage or snap, it would just push but no snap. Then I backed them off and it will snap but not very hard and will slip off. I would like to put new dogs doggles and i will look at the pin. So please help with more reasonable part prices. What are you referring to as the operating sleeve? Is that the section before the oil slinger?? Havent looked at it since i had it apart last and my parts book has grown legs and walked away. Thanks for the help Al

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Mike M

01-31-2007 16:42:14




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 Re: Looking for used or new parts and clutch HELP! in reply to Alex-41JDb, 01-31-2007 13:41:30  
The operating sleeve is the part that has a groove cut in it like threads to sling the oil back in. It also is what the toggles go into. There was some past posts about facing some off of the backside of that operating sleeve to help compensate for wear. I don't know how much to take off ? I have never done this so I don't know how it works out.



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P Browning

01-31-2007 12:44:23




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 Re: Looking for used or new parts and clutch HELP! in reply to Alex-41JDb, 01-31-2007 09:49:58  
Alex -- Read between the lines of Mike's response here! There may be a difference between the clutch engaging and the clutch snapping into position! If you do not sense a full snap -- and as you know, the snap is going over dead center for the dog bones and clutch dogs -- you may have the operating bolts too tight! And if this IS SO -- back them off a half turn each and try it again. Once you achieve a snap-in, even if weak, you will then know to tighten the operating bolts -- one castellation at a time, until you have snap-in by applying the 60-80 pounds prssure at the end of the clutch lever. (PatB)

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Mike M

01-31-2007 10:51:17




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 Re: Looking for used or new parts and clutch HELP! in reply to Alex-41JDb, 01-31-2007 09:49:58  
Does it engage with a good SNAP ! the books says somewhere around 70-80 lbs pull on the handle. I don't take mine up that tight though just a good hard snap.If not tighten it up somemore. I use a beam type torque wrench on each of the 3 nuts as to get them as even as possible. With clutch snapped in I think I go to around 10-15 ft. lbs.

Make sure that operating sleeve doesn't rotate on that pin and I like to take apart all those dogs and toggles and clean them and inspect for cracks and then repack them with grease.

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Duane Larson

01-31-2007 09:57:22




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 Re: Looking for used or new parts and clutch HELP! in reply to Alex-41JDb, 01-31-2007 09:49:58  
Alex,
The pin needs to be stationary, which it sounds like you have - I assume it was welded on the back side. The pin fits up in a hole in the operating sleeve, and that needs to be a good fit so you can't rotate the operating sleeve relative to the pulley. If the hole in the sleeve is worn it can rotate enough such that the dogs don't stand straight up when the unit goes over center with the result that the clutch won't stay engaged. Or you could have worn parts as you noted. But I would check for loose motion in the operating sleeve first. There are 3 bosses on the operating sleeve, one of which has the hole. A new hole could be drilled in one of the other two bosses - I'm assuming it won't affect the balance of the unit.

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