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Re: Bulldozer- weak axle

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02-01-2013 01:59:56

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Bulldozer said: (quoted from post at 01:53:21 02/01/13) Yes, the unpainted plate, welded to the replacement king pin seems to be the design for the Dearborn N series front end loaders.

Have found Dearborn parts manuals where this replacement king pin/plate weldment was bolted to the loader frame.

Have seen this same plate/king pin in operating manuals with 9N riveted center support and the 8N welment center support.

Have studied many archives where a guy bought a Dearborn loader and could not figure out to attach it to the front. Nothing fit. Believe they finally realized the original king pin would have to removed.

If you look at the design of the NH 1500 utility tractor, JD utility series 1000,2000,3000 all have fixed front axles to the frame.

From the JD 3000 sales brochure:


Center Pivot Front Axle

Spur Gear Final Drives

I know nothing about this JD 3005 tractor other than what was in that brochure and what I can see in this picture. But I'm going to go out on what I think is a pretty solid limb and bet the differential housing on that front axle is mounted to a pivot pin in the center of that box frame just like the front drive axle on my remarkably similar looking Kubota 4WD. If you look closely you can see the pivot pin at the top of the differential housing and the travel limiting stops on the top of the axle housing and underside of the frame. I suspect you will find the other models you mentioned all use a very similar if not identical setup.


PS> Just to make it a little clearer I added this parts diagram showing the pivot pin receiver which appears to be an integral part of the front axle/differential casting.

This post was edited by TheOldHokie at 04:37:13 02/01/13 6 times.

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02-02-2013 07:14:52

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 Re: Bulldozer- weak axle in reply to TheOldHokie, 02-01-2013 01:59:56  
Ok, you win, the front axle is not fixed to the frame, but has a center pivot on JD & NH utility tractors

Stand corrected!

Looked up the exploded parts view of the JD 3005
compact utility tractor on the JD website.
This tractor is about as close to the N series as anything on the market, accept for maybe the NH 1500 compact tractor.

The 4WD model has the center pivot housing integal with the differential housing. Appears to be a very heavy duty casting.

The 2WD model has a front axle with a center pivot with a configuration of very similar geometry to the N series, except it is a weldment rather than a casting.

Also looked up the exploded parts view of the NH 1500 compact tractor

The 2WD & 4WD models both have a front axle center support. The 4WD model pivot has zero offset to the front axle. Again the 2WD model front axle geometry is similar to the N series
It is a weldment rather than a casting.

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02-02-2013 07:35:26

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 Re: Bulldozer- weak axle in reply to Bulldozer, 02-02-2013 07:14:52  
Tip: next time dozer, you won't need to cave or apologize, if you stick to speaking to only subjects that you know something about & have real hands on experience with, rather than speculation, hearsay, what saw on Internet, etc. HTH

P.S. this applies to other topics that I have seen you "blow hard" on, as well.

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