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JD 50 CLUTCH OVERHAUL

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mgb

09-12-2000 16:31:22




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I've got the clutch pulley off the tractor. The bearing and retainer out. The dogs out. The dog toggles out. The clutch operating bolts out. Now the manual says 'using an appropriate pulley puller remove the drive gear and clutch operating sleeve.' So what's appropriate. My pulley puller has nothing to brace against to put the gear in a bind as the crankshaft hole passes thru the entire assembly. I tried driving it out with a rod but soon found that I was scaring the inside of the gear and bushing. Some of you "real" mechanics will be able to explain this procedure I'm sure.
Thanks

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Gman

09-13-2000 01:41:31




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 Re: JD 50 CLUTCH OVERHAUL in reply to mgb, 09-12-2000 16:31:22  
Mgb--unless you have another extra gear and operating sleeve in hand,I wouldn't pull it of unless I had some serious problems that it just had to come off.I had to pull one off on a seventy,I removed the cotter key on the operating bolts and the bolt slipped back and the dogs fell out of pocket and you can't get your hand between the pulley and dust sheild. I took it to a machine shop they put it in an big upright press,they put a big puller behind gear and suspended pulley in press and pushed the pulleyand operating sleeve off the gear it maxed out a sixty ton press brother when it came looseit sounded like a stick of dynamite going off,if this is the case you'll have to pull it.otherwise leave it alone.Gman

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clooney

09-12-2000 17:44:43




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 Re: JD 50 CLUTCH OVERHAUL in reply to mgb, 09-12-2000 16:31:22  
Mgb, do you really have to remove the drive gear? Those buggers can really be tight & you take a great chance of messing the gear up. If you just must get that gear off you can make a pilot to sit on the pulley casting that the gear presses over so your gear puller has something to press against then you will still probably have to heat the gear to allow it to come off. Even if you take it to a John Deere dealer or machine shop there is a chance the gear will be damaged. I will caution you to work on the floor or very close to it as those pulleys have a habit of falling off the bench if they arn't sitting flat when the gear comes loose.

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mgb

09-12-2000 18:15:55




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 Re: Re: JD 50 CLUTCH OVERHAUL in reply to clooney, 09-12-2000 17:44:43  
The reason for dismantling this thing is that the single pin that keeps the clutch operating sleeve from spinning is worn very bad as is the hole it passes into on the sleeve. This excessive wear causes the clutch assembly to rattle like a rock in a tin can when you disengage the clutch. The sleeve is rocking back and forth while spinning inside the clutch assembly. This noise is uncomfortably loud as well as embarassing, as even a kid knows "something ain't right". Thanks Clooney for answering my post.

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Fudd

09-12-2000 19:15:34




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 Re: Re: Re: JD 50 CLUTCH OVERHAUL in reply to mgb, 09-12-2000 18:15:55  
I have a question. I adjusted the clutch on my 50 today and noticed the clutch assembly would move up and down in the pulley. Looking at the pulley, the clutch assembly sags so it is closer to the pulley on the bottom than the top. Is it much work to take it all apart like you have done? I think this might be a winter project for me. Thanks.



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mgb

09-13-2000 19:04:12




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 Re: Re: Re: Re: JD 50 CLUTCH OVERHAUL in reply to Fudd, 09-12-2000 19:15:34  
Not to much trouble. Take the guts out of the clutch. Unpin the clutch operating rod. Unbolt the pulley brake and remove the clutch fork housing. It slides right out the front. Then the pulley assembly will slide off of the crankshaft.



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Fudd

09-13-2000 20:41:18




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 Re: Re: Re: Re: Re: JD 50 CLUTCH OVERHAUL in reply to mgb, 09-13-2000 19:04:12  
Thanks, I will give it a try.



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