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HD6 info

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orangeman View Drop Down
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Joined: 12 Sep 2009
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Post Options Post Options   Thanks (0) Thanks(0)   Quote orangeman Quote  Post ReplyReply Direct Link To This Post Posted: 29 Oct 2011 at 2:16am
Hey Coke and Merv:  Very nice detailed info on the great 6.  Wondering if any of the components of the HD6 lived on into the FA line after the 270 Fat Allis badged machines? 

Wish AC was still alive and building the Crawler/Loader lines!  

Merv and Coke where did you get your source of info.  I would like to include it in my AC library.  Thanks much - Orangeman
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HD6 Merv View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote HD6 Merv Quote  Post ReplyReply Direct Link To This Post Posted: 28 Oct 2011 at 11:22pm
Abit more Coke.
It was actually made until 1974. with 25271 units being made.
Initially it consisted of the A model 44 inch gauge. B with 60 inch gauge both with 4 roller track frames, later the E came with 60 inch gauge and 5 rollers and the G model the tracked loader version.
The AC badged Buda engine powered all crawlers until 1960 when AC newly developed direct injection 6000 series engines took over at  s/n 13322.
The next major change happened at s/n 14474 in 1961 when the 6E became a more deluxe model with oil master clutch standard and oil immersed steering clutchs and brakes; both being hyhraulically power controlled.
A powershift model the EP was also added at this time.
About this time the A was dropped so the 4 main models were E EP G and B.
The B was also available with 5 roller frame and oil master clutch and  both E and B models had the option of a 4F 2R speed gearbox, this was the standard G box.
The EP had 2F 2R.
All models continued until 1974 with various minor improvements. With approximatly the last 270 models wearing the Fiat Allis badge after there takover of AC on 1 1 1974
Merv
tits tyres and tracks

they all cost you money
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Coke-in-MN Quote  Post ReplyReply Direct Link To This Post Posted: 28 Oct 2011 at 7:04pm
  • Allis Chalmers manufactured the HD6 tractor for light and industrial farm use between 1955 and 1965 in their Springfield, Illinois, factory. This diesel-powered farm tractor featured several specifications that made it a valuable tool for any farm, and a durable tool that is still in use by some owners today.

Engine

  • The engine of a tractor determines to a large extent how quickly it works as well as what kind of ground it can pull through. The HD6 was equipped with an Allis Chalmers vertical I-head engine with 4 cylinders and a displacement of 344 ci or 5.6 liters. This engine required 15 quarts of coolant, ran on diesel fuel, had a 37-gallon fuel tank capacity and needed a 24-volt starter powered by two 24-V batteries. The compression ratio on the regular engine was 15.0:1, but the turbocharged version had a compression ratio of 16.25:1. Both engines were rated at 1,800 rpm, and had a bore and stroke of 4.4375 and 5.5626 inches respectively.

Dimensions

  • The Allis Chalmers tractor was built for heavy-duty work on larger farms, and has a height of 66 inches and a length of 127 inches. This tractor weighs approximately 13,400 pounds.

  • Serial Number Location
  • As with many other tractors, the serial number of the HD6 tractor is located first on the housing or instrument panel, and then repeated on the steering clutch in case the housing panel number is rubbed off or scratched.

Power

  • The HD6 claims to support draw-bar power of up to 39 horsepower and belt power of up to 54 horsepower. The power of this tractor may be even greater. When TractorData.com tested the tractor, they found the draw bar to display up to 50 horsepower and the belt up to 60.5 horsepower.

Transmission

  • Because the HD6 requires a high degree of maneuverability and may require quick changes based on the terrain, it is equipped with a manual transmission. This transmission has 5 forward speeds and 1 reverse. The HD6 uses a crawler chassis.



Read more: Allis Chalmers HD6 Specifications | eHow.com http://www.ehow.com/list_7468395_allis-chalmers-hd6-specifications.html#ixzz1c7m3snVI
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