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John Deere Tractors Discussion Forum
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JD D Clutch Pulley Dust Shield

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B Duncan

08-18-2005 17:44:25




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Hi All,
Today We started to install a rebuilt clutch pulley assembly onto a 39 D. When the pulley was removed we noticed that the dust shield was missing. I rounded one up and got it ready to go on. The problem comes into play when we go to slide the pulley into the shield. The pulley drags on the shield and we cant slide it far enough to even get the clutch yoke to slide in. Once we had everything back off the tractor the dust shield will drop right in place and has a little bit of free play. What could cause this binding to occur? My dad seems to think that the bearing in the pulley is worn or maybe the crank end play is out of spec. We have not had this tractor running but tried to start it by pulling it, the engine seems to have good compression and it had good oil pressure and did not make any knocking sounds. Any advice or help would be greatly appreciated. There is a show labor day weekend and I am trying to get the tractor together for its first show. If it helps the serial# is 143818. Thanks in advance again

Brad D

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Glen in TX

08-18-2005 22:01:37




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 Re: JD D Clutch Pulley Dust Shield in reply to B Duncan, 08-18-2005 17:44:25  
Brad, You probably just didn't get the dust shield centered. The holes in it are larger and suppose to use some AD1770R lead washers under bolts with drilled heads for safety wire there. Have the bolts on shield just tight enough to hold it and then tap it to center it from crank or while pulley is back on. Then after its centered take pulley back off and tighten bolts and run a line of wire thru them. A gasket goes under that shield too.

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B Duncan

08-19-2005 07:14:23




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 Re: JD D Clutch Pulley Dust Shield in reply to Glen in TX, 08-18-2005 22:01:37  
Thanks for the quick advice. My shop book does not go into detail about the lead washers and the bolts with the tie wire. i just used some regular grade 5 bolts and some black silicone for a seal. Thanks again

Brad



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Glen in TX

08-19-2005 08:55:34




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 Re: JD D Clutch Pulley Dust Shield in reply to B Duncan, 08-19-2005 07:14:23  
It's best to drill some bolts for safety wire there. If it comes loose it will be rubbing again. I suppose bolts with lock washers would work but if they come loose you will be pulling the pulley back off to tighten again. Make sense? The lead washers give it cushion for adjustment and then help hold it tight after tightened and wired. The flat side of shield goes to front for pulley brake clearance. Good luck.

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