Odd tractor rear drive system
Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=36750
Printed Date: 12 Aug 2025 at 5:23pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: Odd tractor rear drive system
Posted By: Coke-in-MN
Subject: Odd tractor rear drive system
Date Posted: 05 Sep 2011 at 1:22pm
 OK what is it ? says English Ford Major gas engine and year of 1953 and test but nothing on the rear drive just gives front tire and   ------------- Life lesson: If you’re being chased by a lion, you’re on a horse, to the left of you is a giraffe and on the right is a unicorn, what do you do? You stop drinking and get off the carousel. |
Replies:
Posted By: R.W
Date Posted: 05 Sep 2011 at 1:24pm
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Looks like it might be a ruff ride! ------------- In Search Of: 1958 Allis Chalmers D17 Diesel serial #9643D |
Posted By: Coke-in-MN
Date Posted: 05 Sep 2011 at 1:31pm
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Found the picture of it and some other pictures of tractors on this link on facebook .
https://www.facebook.com/media/albums/?id=1791706011#!/photo.php?fbid=1779704944161&set=a.1779454577902.2094807.1585547233&type=1&theater - https://www.facebook.com/media/albums/?id=1791706011#!/photo.php?fbid=1779704944161&set=a.1779454577902.2094807.1585547233&type=1&theater ------------- Life lesson: If you’re being chased by a lion, you’re on a horse, to the left of you is a giraffe and on the right is a unicorn, what do you do? You stop drinking and get off the carousel. |
Posted By: everett048
Date Posted: 05 Sep 2011 at 1:44pm
| Howard rotoped drive system.Useing chains to pick up pads. |
Posted By: CTuckerNWIL
Date Posted: 05 Sep 2011 at 1:48pm
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Looks like a walking design. May not be as rough a ride as it looks.
------------- http://www.ae-ta.com" rel="nofollow - http://www.ae-ta.com Lena 1935 WC12xxx, Willie 1951 CA6xx Dad bought new, 1954WD45 PS, 1960 D17 NF |
Posted By: DaveKamp
Date Posted: 05 Sep 2011 at 4:57pm
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Not rough-riding, it's just a variation on the tracklaying concept, just uses longer 'shoes' than what you'd expect on a track-type. The US-standard 'method' is to have several bogey wheels and short-plate 'tracks'... doing a track conversion with short tracks involved adding at least ONE additional wheel up front, and a series of wheels to distribute weight across the tracks. This configuration didn't require all that- it basically just bolted on in place of the stock wheel. If you look closely, you'll see that the wheel is directly supporting the whole rearend weight of the tractor, and instead of having a 'tyre', it has cog-teeth that roll along the track plates. If you're working soft surfaces, you get the added surface-contact/lower surface pressure advantage, but I kinda doubt this conversion would've been 'happy' maneuvering around tight quarters, especially after the pins got worn. |
Posted By: Orange Blood
Date Posted: 05 Sep 2011 at 7:56pm
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I would think that the smaller roller chain would be prone to breaking and coming off ALL the time, since it runs in the mudd and rock??? ------------- Still in use: HD7 WC C CA WD 2-WD45 WD45LP WD45D D14 3-D17 D17LP 2-D19D D19LP 190XTD 190XTLP 720 D21 220 7020 7030 7040 7045 3-7060 Projects: 3-U UC 2-G 2-B 2-C CA 7-WC RC WDLP WF D14 D21 210 7045 N7 |
Posted By: jnicol6600
Date Posted: 05 Sep 2011 at 8:17pm
| I've seen them on youtube pulling trenchers very slowly |
Posted By: CTuckerNWIL
Date Posted: 05 Sep 2011 at 8:22pm
I don't think the roller chain is supposed to be in the mud. The shoes are on the ground, that chain shouldn't touch the ground unless you bury the tractor in the mud and you would be in too deep to keep going. ------------- http://www.ae-ta.com" rel="nofollow - http://www.ae-ta.com Lena 1935 WC12xxx, Willie 1951 CA6xx Dad bought new, 1954WD45 PS, 1960 D17 NF |
Orange Blood wrote:Posted By: beeman
Date Posted: 05 Sep 2011 at 8:26pm
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I owned a Super Major back in the day and it was a diesel. Started alttle hard,but pulled good. Needed power steering ,unless you had something heavy on the 3pt. Always been somebody tryng to perfect the "half track" system for wheel tractors. ------------- 1949 B 3930 Ford- Have owned other Orange ,green,red,yellow,dark green tractors and equipment. |
Posted By: JoeM(GA)
Date Posted: 05 Sep 2011 at 8:40pm
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not too bad really, here's one going along http://www.youtube.com/watch?v=f6RtTo3aNr8 - http://www.youtube.com/watch?v=f6RtTo3aNr8 ------------- Allis Express North Georgia 41 WC,48 UC Cane,7-G's, Ford 345C TLB |
Posted By: Orange Blood
Date Posted: 05 Sep 2011 at 9:47pm
A very good point, but if you look carefully in the first picture, the sprocket is exposed through the knuckle or joint of the track, and that may expose it to debris. Even the one on the floor still shows the chain through the joint. I don't know for sure, just a thought ------------- Still in use: HD7 WC C CA WD 2-WD45 WD45LP WD45D D14 3-D17 D17LP 2-D19D D19LP 190XTD 190XTLP 720 D21 220 7020 7030 7040 7045 3-7060 Projects: 3-U UC 2-G 2-B 2-C CA 7-WC RC WDLP WF D14 D21 210 7045 N7 |
Posted By: JohnCO
Date Posted: 05 Sep 2011 at 9:51pm
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Yes, watching the video, it does ride quite smoothly, wouldn't want to go too fast though!
------------- "If at first you don't succeed, get a bigger hammer" Allis Express participant |
Posted By: DaveKamp
Date Posted: 06 Sep 2011 at 5:12am
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Hee hee... the small chain isn't really SUPPOSED to be in the mud, but regardless, it's gonna get dusty and dirty... the dusty-dirty 'level' for any tractor, is about three feet above the operator's head. The front edge 'rollers' and pins on those plates definately take a beating from dust and grit- no escaping that fact. But the little chain doesn't 'drive' anything... the driving is done by the big cog teeth on the replacement 'wheel'. The little chain's job is to make the track segments pick up, and 'lay out' in a smooth fashion, so it's really not under a load. The big wheel rolls across the plate segments, they're picked up by the opposite plate, and pushed forward by the 'top' side of the big cog wheel, then laid down, and driven over again. My gut feeling here is that, even if that small chain was broken, it would still drive, but the plates would probably bang around pretty good... mebbie get bound up every so often, but not much more. It's a clever design, but there's probably a reason why it didn't take the world over and replace tires or short-plate crawler tracks. |
Posted By: SteveC(NS)
Date Posted: 07 Sep 2011 at 8:44am
| Fantastic! thanks coke for both the op AND the u-tube link! |