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Removing the drive gear on A belt pulley

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A puller

03-23-2003 07:29:55




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What is the best way to remove the drive gear on the inside of the clutch pulley? I have heard that this is a real bear. Some have told me that you can remove it by heating and using a chisel to drive it off. Will this work or should I use a gear puller instead. Also how hard is it going to go back on IT manual says to heat it in boiling water and press back on. Some hints would be appreciateeeed before I tackle this one. Thanks

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Clooney

03-23-2003 07:39:29




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 Re: Removing the drive gear on A belt pulley in reply to A puller, 03-23-2003 07:29:55  
A puller, you will need a big gear puller, a proper fitting center for the puller to push on & plenty of heat on the gear. On the stubborn ones you might need an arbor press.
~To reinstall the gear you will need to heat the gear [I heat them in hot oil] then use a press to press the gear on. Make sure to support the center of the pulley & not just support it by the rim or you risk pulley breakage.....

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A Puller

03-23-2003 12:49:35




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 Re: Re: Removing the drive gear on A belt pulley in reply to Clooney , 03-23-2003 07:39:29  
Tried heat how much? do you need to get the gear red hot. I didnt have it that hot. using a big gear puller ( the one deere uses to pull snap rolls on corn head)couldnt get to budge yet.



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Clooney

03-24-2003 03:37:47




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 Re: Re: Re: Removing the drive gear on A belt pulley in reply to A Puller, 03-23-2003 12:49:35  
A Puller, you want to keep it under the RED hot zone. Maybe a very dull brownish red but no more. It sounds like you don't have a big enough gear puller. If you have some good welding gloves heat that gear up good then tighten the puller about as tight as you dare then pick the pulley up & slam it down on the end of the puller, sometimes the weight of the gear in motion & the pressure of the puller will get it started. Once you get it moving it should come right off���

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Lee

03-24-2003 03:27:11




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 Re: Re: Re: Removing the drive gear on A belt pulley in reply to A Puller, 03-23-2003 12:49:35  
I wouldn't go red hot, but hot enough to smoke oil would be a good place to start. Try some wax where the gear is stuck on, heat it up, crank it up and smack the puller bolt with a good 5 lb hammer like you mean it. Re-tighten and smack again. If it still won't budge, take it to a machine shop before somebody gets hurt - you just got a mean one.



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