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JD 720 std rear wheel question ....

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Crazy Horse

02-24-2014 16:54:07

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A friend of mine was working on a JD720 today in his shop and I was browsing the manual and a question came to mind. Why would such a large and heavy tractor have adjustable rear wheel width (by flipping the rim/hub configuration)? Would people actually use that as a row crop tractor? And would the geared spline system on the rear wheel hubs also be considered part of the width adjustment?

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coonie minnie

02-24-2014 19:37:38

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 Re: JD 720 std rear wheel question .... in reply to Crazy Horse, 02-24-2014 16:54:07  
If one wanted to center a moldboard plow behind the tractor and operate in the furrow, adjustable tread width is handy.

And being that the 720 standard shared most components, including rear axles, final drives etc with the 720 row crop, it made sense to include such features as the rack and pinion rear tread adjustment.

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Tx Jim

02-25-2014 04:29:50

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 Re: JD 720 std rear wheel question .... in reply to coonie minnie, 02-24-2014 19:37:38  
720's were used for to farm rowcrops where I live.

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Frank 41

02-24-2014 17:32:35

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 Re: JD 720 std rear wheel question .... in reply to Crazy Horse, 02-24-2014 16:54:07  
Would also depend if it had an adjustable front axle.

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Crazy Horse

02-24-2014 19:13:48

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 Re: JD 720 std rear wheel question .... in reply to Frank 41, 02-24-2014 17:32:35  
No, front axle width and wheel width is fixed, rear tires are 30" I believe, forget the width measurement of those.

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