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Allis G Belt pulley-hyd pump

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David R Inman

Joined: 01 Aug 2012
Posts: 498

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PostPosted: Mon Dec 29, 2014 9:59 am    Post subject: Allis G Belt pulley-hyd pump Reply to specific post Reply with quote

I am looking for some schooling on the Allis G belt pulley -hyd pump.

I see in the dealers manual there is an old and new style belt pulley, and the hyd pump. Was the new style pulley added to accommodate the hyd pump, which wasn't offered at first?

I'm guessing there is no way to use, at once the AC hyd pump and the old style pulley?

Thanks, and an early happy new year.

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Tractor Expert

Joined: 31 Aug 2007
Posts: 2018

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PostPosted: Mon Dec 29, 2014 2:01 pm    Post subject: Re: Allis G Belt pulley-hyd pump Reply to specific post Reply with quote

David, the big difference as you can tell in your picture is that the new style gearbox had half as much going on than the old one. One shaft and bearing pair vs two of it all. Made for a much cheaper and easier to set up assembly. As for using with the hydraulic pump installed, neither of these was used. There was a third gearbox, several inches shorter that the other two that was built that took the size of the pump into account to keep the pulley in the same location for the powered implements. You can see in the below picture how much shorter it really is.

 photo P1010001_zpsf0bafde8.jpg
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