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Restoration & Repair Tips Board

Re: JD 4020 Part identification help

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mstas

08-29-2012 18:14:12
66.52.227.83



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sounds like your talking about the hydraulic pump drive. It runs off the crankshaft pulley




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Randy Kuhn

08-30-2012 06:27:05
74.212.58.131



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 Re: JD 4020 Part identification help in reply to mstas, 08-29-2012 18:14:12  
Thanks mstas,

I kinda figure that's what it was powering, but wasn't 100%. How much of a pain in the butt is that to change?



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JMS/.MN

08-31-2012 15:51:05
209.237.125.241



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 Re: JD 4020 Part identification help in reply to Randy Kuhn, 08-30-2012 06:27:05  
Like rrlund says, but........check if there is a locking nut on the backside of each bolt. The bolts thread into the aluminum half, and some people, like me, put a nut on the back side for extra security from coming loose. Bushings are usually squished, new ones are round. Put new ones in.



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rrlund

08-30-2012 16:00:57
207.241.137.116



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 Re: JD 4020 Part identification help in reply to Randy Kuhn, 08-30-2012 06:27:05  
Not TOO bad in relative terms. Take out two bolts and take the two halves off to get to the shafts with the rubber gromets. Then if memory serves me right,loosen a bolt that clamps one of those shafts to the pump shaft and it should slide off. I THINK the other rubber gromets just bolt to the front pulley.



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