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John Deere clutch operating question.

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John Hicks

03-26-2002 19:56:05




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I am about ready to put the clutch back together on my 60 after replacing the operating bolts and was checking things over to make sure everything else was OK. The question I have is how does the clutch when engaged put pressur on the inner most clutch facing since the drive disc is firmly attatched to the crank. The only way I can see it operating is that when you engage the clutch, the pulley moves out slightly at the same time as the operating bolts pull the outer facings and sliding drive disc in tight against the drive disc. Thanks for the info on this.

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Gary

03-27-2002 21:34:37




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 Re: John Deere clutch operating question. in reply to John Hicks, 03-26-2002 19:56:05  
thanks clooney your the greatest.now I have to contind with timiming my cast clutch drive disk! as on later posting! did not mean to interrupt this issue fellas!



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Clooney

03-27-2002 03:35:07




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 Re: John Deere clutch operating question. in reply to John Hicks, 03-26-2002 19:56:05  
John,yes the pulley has to move out slightly to clamp the inner plate between the pulley & driver disk.
~When you engage the clutch, the fork moves the operating sleeve in the outboard direction, at that time as the resistance builds due to the toggles trying to go over center, the operating sleeve pushes the pulley outward so the inner clutch disk is starting to drive the pulley due to the fact it is being sandwiched between the pulley inner machined face & the inboard side of the driver & the outer disks are starting to drive due to the dogs pulling on the adjusting bolts. That is what gives you the smooth rollout as you engage the clutch. ~As you keep putting more pressure on the operating sleeve while engaging the clutch the toggles finally go over center & clamp all the plates together so the clutch has all the plates clamped to the driver, pulley & floating disk (if used) & remain clamped until the toggles go back over center in the released direction.

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John Hicks

03-27-2002 10:07:15




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 Re: Re: John Deere clutch operating question. in reply to Clooney, 03-27-2002 03:35:07  
Thanks alot for the confirmation on clutch operation. It's nice to know exactly how things work.



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Gary

03-27-2002 15:25:10




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 Re: Re: Re: John Deere clutch operating question. in reply to John Hicks, 03-27-2002 10:07:15  
very well put thanks for all that info!by the way what if the fork where the linkage goes. does extra play from wear on the shafts come into effect of the operation? the ones I have seen or most old farmers did not seem to pay mind to re-bush any of the action!!!!! and still worked rather well.



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Clooney

03-27-2002 15:49:09




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 Re: Re: Re: Re: John Deere clutch operating question. in reply to Gary, 03-27-2002 15:25:10  
Gary, the extra play doesn't really effect the clutch operation as long as there is enough travel at the fork to move the sleeve to the fully engage position. ~The extra play does make the lever movement longer, the clutch harder to precision control & brake operation more difficult though. ~I dislike slop in the clutch linkage of my personal tractors & build up the shafts, make bushings, weld up the pin holes, machine new pins & do whatever it takes to take all the slop out.....

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