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Allis Chalmers Discussion Forum

Broken Gears on PTO

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Author  [Modern View]

06-29-2020 06:51:06

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I was recently given an Allis Chalmers WD from my father in law. I noticed some oil dripping out from the PTO seal when I first got it, and then after running the belly mower it really leaks. Upon dropping the PTO housing, I noticed some broken teeth on the main gear in the housing. I'm guessing this came from someone trying to engage the PTO before everything had stopped spinning. I'm wondering if this is going to be detrimental and need to be replaced, or if I can file down the sharp edges on the gear, replace seals, and reassemble.


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06-30-2020 05:29:54

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 Re: Broken Gears on PTO in reply to COOZ65, 06-29-2020 06:51:06  
I agree with "run it". But check the mating gear too. And now you know why not to grind the gear when engaging them. Not saying you did.

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Tramway Guy

06-29-2020 18:28:46

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 Re: Broken Gears on PTO in reply to COOZ65, 06-29-2020 06:51:06  
Might want to check those roller bearings that the gear runs on...

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06-29-2020 07:46:33

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 Re: Broken Gears on PTO in reply to COOZ65, 06-29-2020 06:51:06  
After finding an exploded view. it is the Idler Gear that is in question.

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wore out

06-29-2020 08:04:15

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 Re: Broken Gears on PTO in reply to cooz65, 06-29-2020 07:46:33  
Chipped gear teeth are never a good thing, but looking at the tooth wear pattern there's significant contact area left on the chipped teeth.

A belly mower shouldn't be the hardest thing in the world to run, and simple spur gears are not "high tech", in all probability that gear will work for many years with the intended use.

Really no need to even file on 'em, IMHO.

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