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Allis Chalmers Discussion Forum

WD45 - PTO

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Author  [Modern View]

06-30-2008 14:59:57

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Need help. I have a 1953 Allis. While Bush hogging I hit a rock in the field and my PTO quit. I tried to engage it again to no prevail. The only thing Ive done so far is check the out likage. Any ideas?


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Tim In NY

07-02-2008 14:20:08

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 Re: WD45 - PTO in reply to KEITH SCHRAMM, 06-30-2008 14:59:57  
IF the shear bolt on the pto shaft isn"t sheared, then take the pto gearbox off and inspect the gears. Also check the pto intermediate gear which is inside the tractors torque tube. If that gear has been damaged, then check the pto drive gear by pulling the hand clutch cover (under battery box).I have the gears if you need them.

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Keith Schramm

07-12-2008 12:20:58

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 Re: WD45 - PTO in reply to Tim In NY, 07-02-2008 14:20:08  
Just my luck. I pulled the PTO housing and thats all fine. I pulled the inspection cover under the battery box and see that the PTO drive gear on the Torque Tube has all the teeth missing. What kind of job am I looking at. spliting the housing apart or can I fix this from the inspection cover were the torque tube and transmision cluch are. Thanks

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07-02-2008 06:24:44

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 Re: WD45 - PTO in reply to KEITH SCHRAMM, 06-30-2008 14:59:57  
When you get the unit repaired, I recommend using a grade 2 bolt for the PTO shaft shear pin. It will sometimes be an aggravation because of nuisance shears, but in the long run it will most likely preserve your PTO unit. A half dozen bolts can be purchased at your local farm store for a few dollars. A few years ago I ran across a roll of old fence wire while bush hogging. The cutter has a slip clutch but it did not slip.......stripped the gears off the PTO unit.....luckily it was the external unit........good luck..........RP

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07-01-2008 13:57:22

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 Re: WD45 - PTO in reply to KEITH SCHRAMM, 06-30-2008 14:59:57  
First of all, thanks for the help. So from what you all are saying, I need to remove the PTO unit and any damage would be in the PTO unit itself, not up inside the tractor.

Thanks again

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Brad W Wi

07-01-2008 04:17:07

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 Re: WD45 - PTO in reply to KEITH SCHRAMM, 06-30-2008 14:59:57  
Been there, done that. In my case it wasn't the shear bolt.It stripped the gears in the pto. Had to replace all the gears. not a huge job, just a pain in th a$$.

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06-30-2008 16:41:02

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 Re: WD45 - PTO in reply to KEITH SCHRAMM, 06-30-2008 14:59:57  
You hope you broke the shear bolt. More than likely it is an internal injury, but usually oil & shapnel would come out.

Very loose slipper clutches are the only way to B.H. with a wc-wd-wd45.

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06-30-2008 15:22:02

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 Re: WD45 - PTO in reply to KEITH SCHRAMM, 06-30-2008 14:59:57  
You probably broke the shear bolt. The WD PTOs have a shear bolt in the PTO drive to sort of save parts

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