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Hupp Dual-Drive


 
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modyinnh
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Joined: 23 Jun 2012
Posts: 26


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PostPosted: Wed Oct 17, 2012 8:35 am    Post subject: Hupp Dual-Drive Reply to specific post Reply with quote

Hi all, I've got a '48 8N (front mount)with a Hupp Dual-Drive aux. trans as identified from John Smith's page. I can go plenty fast without the use of the Hupp. My question is: under what circumstances (other than tractor drag racing) would someone use the Hupp?

paul
 
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TheOldHokie
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Joined: 08 Apr 2005
Posts: 7007
Location: Myersville, MD

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PostPosted: Wed Oct 17, 2012 8:45 am    Post subject: Re: Hupp Dual-Drive Reply to specific post Reply with quote

modyinnh wrote:
(quoted from post at 12:35:16 10/17/12) Hi all, I've got a '48 8N (front mount)with a Hupp Dual-Drive aux. trans as identified from John Smith's page. I can go plenty fast without the use of the Hupp. My question is: under what circumstances (other than tractor drag racing) would someone use the Hupp?

paul


One use was to increase PTO speed for flat belt use. Check out the the Sherman Step-Up brochure on John's page for a typical sales pitch

TOH
 
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Dell (WA)
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Joined: 21 Sep 1998
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PostPosted: Wed Oct 17, 2012 8:48 am    Post subject: Re: Hupp Dual-Drive Reply to specific post Reply with quote

Paul........most auxiliary trannys like the Hupp, were OVERDRIVE. Handy to drive on the road between fields. Overdrive top speeds were in the 25mph range but boy do those water fill ag-bar tires hop. And front tires wobble and wander all over the place. Slowing down is one of the reasons of the popularity of the 3-speed Sherman. ........Dell
 
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John Smith8N
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Joined: 15 Aug 2007
Posts: 867
Location: Edwards, Illinois

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PostPosted: Wed Oct 17, 2012 10:35 am    Post subject: Re: Hupp Dual-Drive Reply to specific post Reply with quote


Most people find the Hupp Dual Drive handier in the low range, to slow the tractor down.
 
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Ultradog MN
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Joined: 22 Apr 2001
Posts: 15665
Location: Twin Cities

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PostPosted: Thu Oct 18, 2012 2:34 am    Post subject: Re: Hupp Dual-Drive Reply to specific post Reply with quote

When you are very hungry and thirsty and on your way down to the American Legion for all you can eat tacos and cheap tap beers the over drive really comes in handy.
Beyond that, I think Hokie pegged it.
When I had the Dearborn buzz saw on the back I could get 540 PTO speed at a much lower engine rpm.
Saved fuel and less wear and tear on the engine.
 
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modyinnh
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PostPosted: Fri Oct 19, 2012 9:13 am    Post subject: Re: Hupp Dual-Drive Reply to specific post Reply with quote

Well thanks for all the replies. Now all I need to do is fix the clutch!
 
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