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Allis Chalmers Discussion Forum
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3 point hitch for 1941 model WC

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Chris Jensen

07-08-2007 22:06:07




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I would like to install a 3 point hitch on my 1941 Allis Chalmers model WC. Would appreciate seeing a picture of a WC with a home built 3 point on it--Any information regarding this planned project of mine would be appreciated. I was thinking about removing the belt pulley and checking to see if a hydraulic pump could be adapted to the shaft for the belt pulley




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bigr

07-10-2007 13:49:48




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 Re: 3 point hitch for 1941 model WC in reply to Chris Jensen, 07-08-2007 22:06:07  
I have a '41 WC with live hydraulics, loader and 3 point. It has a crankshaft mounted pump with a valve that switches the flow from either the loader or to the 3 point. I don't remember how to post a picture on here. If you send me you're email I'll send you pictures.



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chris jensen

07-10-2007 14:15:00




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 Re: 3 point hitch for 1941 model WC in reply to bigr, 07-10-2007 13:49:48  
Thank you for sending a response to my inquire regarding hydraulics and 3 point for a WC. Did you build your 3 point or adapt an after market three point? I would like to see pictures of your tractor



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chris jensen

07-10-2007 14:12:35




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 Re: 3 point hitch for 1941 model WC in reply to bigr, 07-10-2007 13:49:48  
I would really like to see your WC--How you attached the hydraulic pump and what you did to mount the 3 point. Thank you for writing.
chris jensen

[email protected]


I live in Seattle, Washington--



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TxAllisMan

07-09-2007 21:11:36




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 Re: 3 point hitch for 1941 model WC in reply to Chris Jensen, 07-08-2007 22:06:07  
This pic is a three point setup for a WD/WD 45 from Tony's Tractors.

You can see how the lower lift arns attach using the drawbar.

third party image



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TxAllisMan

07-09-2007 21:06:17




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 Re: 3 point hitch for 1941 model WC in reply to Chris Jensen, 07-08-2007 22:06:07  
See if I can post a pic of your WC frin your web site.

Here it goes.

third party image



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Texas Denny

07-09-2007 06:09:52




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 Re: 3 point hitch for 1941 model WC in reply to Chris Jensen, 07-08-2007 22:06:07  
Chris, I have been collecting parts to do this on my WC. I have four three point tractors so I don't need to but I thought it to be a good challenge. I've thought to do it two ways and haven't decided which one to do.

The first idea is this. I bought a lift arm setup from a WD. The pillow blocks sit rather nicely on the drawbar cover. The lower lift arms just bolt into the angle irons for the drawbar cover. I then do a connection to the upper lift arms from the mechanical lift of the tractor. May use the cultivator brackets and levers that I also have. This wouldn't give me continuous adjustment from the tractor seat. But I could build in leveling between lower and upper lift arms, And I could add height adjustment in the cultivator bracket contraption. Since these are infrequent adjustments with a shredder type mower, it would be workable and not terribly time consuming to make. AND it uses the stock mechanical lift which would retain some nostalgia.

In the second method, I purchased the cylinders from a WD. A friend gave me a self contained hydraulic pump and valves. The upper and lower lift arms are the same as in idea #1. I planned to put a gear belt pulley on the pto shaft under the tractor and run a gear belt to the hydraulic unit. This would permit the hydraulic unit to be on top of the side frames so it could be adjusted from the seat. Gear belts were selected because the belt can be looser and not put so much side load on the bearings. I rejected the belt pulley as there is no easy way to engage and dis-engage - and the worst part is the belt pulley seems to make shifting much more difficult. I could put the pump on the front of the tractor but I'd need to build adapter plates so I could separate the pump and the valves.

Anyway, those are my ideas. If you go ahead, I'd like to see your progress. I plan to do it but I have a couple of large projects ahead in the cue.

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JMS/MN

07-09-2007 08:32:04




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 Re: 3 point hitch for 1941 model WC in reply to Texas Denny, 07-09-2007 06:09:52  
TD- some thoughts regarding your mounting for the lift arms: all the stress would be on the tractor platform, and the four bolts that hold it to the tractor. I'd consider some additional support by making a mounting bracket that uses the platform as well as the cultivator bracket mounting lugs on each end of the rear axle, both upper and lower. Might also be able to mount the WD lift cylinders in the typical manner as well, or by dropping the forward bracket a bit to gain clearance under the axle. I agree that using the belt pulley drive is not desirable- would not give live or independent hydraulics. Regarding the slow shifting with the pulley running, that is due to the inertia of the pulley, which would be less if driving a hydraulic pump, but there are simply better options to mounting a pump. Works fine to mount one on the front crankshaft pulley. Double sheave pulley for AC power steering is available for the WD45, D17, matches the WC crank so you can hang a pump underneath.

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JMS/MN

07-09-2007 13:48:33




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 Re: 3 point hitch for 1941 model WC in reply to JMS/MN, 07-09-2007 08:32:04  
Did some measuring since the first post- WC pumpkin sticks to the rear about an inch more than a WD- but WD cylinders would mount fine on the C-channel without longer brackets. No problem with width for WD lift arms, or clearance under the axle. I'd run a half by four flat bar vertically behind the pumpkin, on top of the platform, reinforce with half by two to make an 'L' or 'C', run it out to the axle ends and mount to the cultivator bracket lugs. Easy to drop some plate down alongside the 'C' channels to mount a Snap-Coupler unit as well- then you could use SC equipment or generic 3ph adapter. And mount the top link to the lift arm shaft or the half inch plate.

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chrisjensen

07-09-2007 06:44:18




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 Re: 3 point hitch for 1941 model WC in reply to Texas Denny, 07-09-2007 06:09:52  
Thank you for sending information regarding putting a 3 point hitch assembly on a WC. I too have several other tractors with 3 point hitches on them. Just wanted a project to bring the WC more into line with more modern tractors. Have sent our website which shows the other tractors my Wife and I have obtained from junk yards and farmers garages and back fields--They have all been restored to good working condition: The WC was in terrible shape when we got it: cracked block, gas tank rusted off--Had to get a core block and rebuilt it totally--found a good used gas tank at a tractor junk yard that specializes in Allis Chalmers tractors:

http://www.rockisland.com/~ejensen/

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Texas Denny

07-09-2007 18:37:54




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 Re: 3 point hitch for 1941 model WC in reply to chrisjensen, 07-09-2007 06:44:18  
Wow! You're really into dozers! I've been dreaming about buying one for years. Renting, when I need one, has been too cheap - can't justify the expense. It looks like you are having fun!



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TxAllisMan

07-09-2007 03:45:07




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 Re: 3 point hitch for 1941 model WC in reply to Chris Jensen, 07-08-2007 22:06:07  
Hope this picture works to help explain what i was talking about using the factory drawbar as a mounting place for the lower lift arns.

Link



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sid

07-09-2007 06:50:29




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 Re: 3 point hitch for 1941 model WC in reply to TxAllisMan, 07-09-2007 03:45:07  
That is interesting. I did not know you could put a snap coupler on a WC. I would be interested in seeing more pictures showing details on how it is done.



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TxAllisMan

07-09-2007 03:38:35




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 Re: 3 point hitch for 1941 model WC in reply to Chris Jensen, 07-08-2007 22:06:07  
I read in the sometime back about addind a hydraulic pump to the WC's belt pully here in this forum and I was under the impression that it would be better to run the pump off the crankshaft as then the hydraulics would be live.

What are you going to use an upper rockshaft?

I know that I seen in the past that alot of people use the rock shaft to mount the center arm for the three point link.

I am almost sure you could use the factory drawbar as the adapting point for the lower lift arms.

Hope someone else has more info than myself.

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Chris Jensen

07-09-2007 06:38:14




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 Re: 3 point hitch for 1941 model WC in reply to TxAllisMan, 07-09-2007 03:38:35  
Thank you for sending the picture and your thoughts about the hydraulic pump . Where and how to mount a rockshaft is still a problem for me. Have sent out website which shows the tractors my Wife and I have obtained from junk yards and farmers back fields and barns. We have restored them to working condition. The WC was in extremely bad condition when we got it: block cracked, gas tank rusted off, and radiator in bad shape. Had to use a core block and rebuilt it totally
http://www.rockisland.com/~ejensen/

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