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JD 620 Broken Clutch...UPDATE

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LittleD

01-27-2008 17:35:15




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While working on my JD 620 clutch I found one of the clutch dog pivots broken off and the parts were missing. I started looking for a used pulley but there are few out there and priced around $600. Seems that the JD 620~630 tractors have the problem of breaking the pivots.
So I decided to repair my pulley instead. I started by making a blank pivot from steel and then machined the broken pivot off flush with the base of the pulley. I then made a jig that matched the good pivot on the pulley to position the new pivot correctly during welding. A welding shop welded the pivot on for $40. After the welding was done I balanced the pulley by drilling material from the pulley just as mother Deere did when the pulley was first made.
Put everything together and adjusted and tested today…..works great with a nice snap !
Once I got going on this clutch project it wasn’t too bad and I encourage anyone with a broken pulley to repair their own…relatively cheap if you can do some of the work yourself.

Thanks for everyones help and ideas, Rich

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Mike M

01-27-2008 17:41:53




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 Re: JD 620 Broken Clutch...UPDATE in reply to LittleD, 01-27-2008 17:35:15  
How did you do the balancing ? Looks like you had to remove alot ?



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