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John Deere Tractors Discussion Forum
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MODEL 50 CLUTCH HELP

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Johnny(TN)

05-26-2006 08:42:34




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I have a 1953 model 50 tractor and it sheared off most of the teeth on the fixed clutch drive disc where the sliding disc fits over it. The sliding disc was not hurt. Can anyone tell me what might have caused this? I plan on replacing the bearing and bushing inside the pulley. Is there anything else I should look and and see about replacing while I'm into this. The disc drive was not cheap and I don't want to do this again. Thanks, Johnny

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buckeye al

05-26-2006 14:44:30




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 Re: MODEL 50 CLUTCH HELP in reply to Johnny(TN), 05-26-2006 08:42:34  
Most usually wear here is caused by lots of idling with the clutch DISengaged. It's a condition most prevalent in the diesels. Have heard of some refer to the floating plates as rattle plates in the diesels. If you idle the diesels down and leave the clutch disengaged they can really make a racket! Always best to shift to neutral & engage the clutch so the pulley is rolling.

As for what else to do there.... Not much other than to -grease the heads of the toggles and the sockets they go into. I've had good luck with a good brand of full synthetic wheel bearing grease.

-check for extensive wear on the fork end of the clutch dogs caused by the adjuster bolts. If not severe, wear here can be ground out. It's not really necessary but it can make clutch adjustment a little easier.

-At least compare your clutch springs (the three that disengage the pack) to new ones. If significantly rusted, new ones will make the clutch disengage nicely.

-Check for extensive wear on the bronze clutch fork. They can be worn a LOT and still function safely. Wear here can just make them sloppy in operation. Pretty much depends on how "nice n tight" you want it to be when finished and how much you like pictures of our past presidents to stay in your pocket. Easily replaced later without removing the driver from the crank.

-Make sure the driver is in time with and tightly installed on the crank. I always check the torque after a few hours of operation. For the sake of a loose bolt, you sure don't want to have to put in another new driver or a different crank or both!

Later.

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