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Allis Chalmers Discussion Forum
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B rear drive housing question .....

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MMB

09-10-2006 07:26:21




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On an Allis Chalmers B (1946) that I just picked up, I see where on the rear drive (gear reduction) castings that the rear drawbar hooks up to the back part and is adjustable for height. Now, at the front of those same gear reduction castings is a similar setup that doesn't seem to have any function. There seems to be a splined shaft sticking out and then a steel bar that slides over it and is bolted to the housing about 5" back of the splined shaft. Can anyone tell me what those are for? Maybe some sort of implement attatchment or something?

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Tom Davison

09-12-2006 17:04:47




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 Re: B rear drive housing question ..... in reply to MMB, 09-10-2006 07:26:21  
I have a 1942 C with Wiard Plows. The plows and the tractor were purchased in 1942. The drawbar for the plows is the same as the one used for the AC Plows. In fact, the only difference between the Wiard Plow and the AC Plow is the frog, moldboard, land side, and the points. The beams and lifting mechanism are the same. Mine has the hydraulic lift.



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D13

09-11-2006 11:29:29




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 Re: B rear drive housing question ..... in reply to MMB, 09-10-2006 07:26:21  
I paid $75 each for my plows, and another $50 for the manual lift mechanism for one. The one thing I noted is that almost all the ones I see have the cross rod on the lift mechanism cut off. Many also have the down rods replaced with chains.

I guess I should keep my manual lift plow, cultivator, and sickle together with the '39 eh" Bizzarely enogh, it has electric start but no belt/PTO/hydraulics. I have picked up a belt pulley/PTO for the sickle application.

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Dick L

09-10-2006 12:42:10




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 Re: B rear drive housing question ..... in reply to MMB, 09-10-2006 07:26:21  
As for the final drive castings. There is no right or left final drive castings. A left can be bought from one tractor and installed on the right of another tractor. As for the function of the front bolt hole and locating hole, the bracket for the mounted plow drawbar mounts in that location using those holes. Newer B"s would have a drawbar mounted to those holes for the snap coupler.
On the spline part you lost me as to the location. A picture would help.

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Rod (NH)

09-10-2006 16:25:31




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 Re: B rear drive housing question ..... in reply to Dick L, 09-10-2006 12:42:10  
Dick,

There was another use for those forward holes. My WIARD B plows use the standard drawbar attached in the forward position for pulling the plows. That seems, I think, to be rather uncommon as I have not heard of others like it. It was used at least in 1942 and possibly in other years as well. The plows are manual lift and the beam of the RH one interferes with a standard hydraulic pump when the plow is raised. The LH plow requires removal of the belt pulley for clearance. The depth adjustment lever also interferes with a battery box. These plows were for Bs that had no hydraulics and were crank start only.

Rod

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Dick L

09-10-2006 18:00:58




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 Hey Rod in reply to Rod (NH), 09-10-2006 16:25:31  
I have most of one of those manual lifts you are talking about (I think). It was in a pile of B stuff that I bought. It didnt seem to go with anything I have but I knew it was a manual lift of some sort to fit a B. It is rusted bad and nothing moves but it has two springs on it that I would guess still would be good. I just moved it yesterday to get it away from space I needed. On the other hand it could be something completely different.

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Rod (NH)

09-11-2006 05:23:53




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 Re: Hey Rod in reply to Dick L, 09-10-2006 18:00:58  
Dick,

There were manual lifts for the standard AC pick-up plows also:

third party image

They are quite different from the manual lifts for the aftermarket WIARDS:

third party image

I don't think the manual lift versions of B plows are that common, even the AC ones. Anyone trying to piece together workable pick-up plows for use on a B w/o hydraulics would be interested in what you might have, I would guess. I'd try and find out exactly what you've got there. It could be worth more than you think.

I am told that there were "several" manufacturers of plows for the B, especially during the war years, but I don't know how true that is. I am only aware of the standard AC ones and the obviously different WIARD ones that I have. Luckily I remembered how to install them from years ago, otherwise I would be scratching my head. I don't know if DAD ever had a manual for them. It wasn't with the other manuals that he kept so there may not have been one. I have never seen a reference to one either.

Rod

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Dick L

09-11-2006 06:55:04




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 Whatever I Have in reply to Rod (NH), 09-11-2006 05:23:53  
I see that it is not all there. The only thing that looks like your drawing is the numper 11. The lifting lever does not have notches. I will take a picture and maybe someone can figure it out.



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Chris (OR)

09-11-2006 10:06:25




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 Re: Whatever I Have in reply to Dick L, 09-11-2006 06:55:04  
I have also been looking around for the piece to complete a manual lift plow for a b. I have the plow, disk, main beam, front u-bar (round bar that goes between the final drives, u-bar brackets and one of the control levers (the smaller one that I think set the angle). But I still need the other lever, and the lift assy....

Does anyone have an original AC one of these?



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Dick L

09-11-2006 10:16:48




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 Re: Whatever I Have in reply to Chris (OR), 09-11-2006 10:06:25  
I had three of the front drawbar lift levers. I gave the one away that was good. I just repaired one for my use and am not sure if the other one is repairable. They were all on B"s that I bought.



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