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HD5 article

Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Construction and other equipment
Forum Description: everything else with orange (or yellow) paint
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=47489
Printed Date: 23 Jun 2025 at 2:19pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com


Topic: HD5 article
Posted By: Coke-in-MN
Subject: HD5 article
Date Posted: 18 Mar 2012 at 9:21am
 The Allis-Chalmers HD-5 crawler tractor, better known as a bulldozer, was produced by the Allis-Chalmers Company in West Allis, Wisconsin, from 1946 to 1955. It was a small bulldozer with a wide range of options for farmers, loggers, building contractors and the military. Annual production averaged around 3,000 units. HD-5 production peaked in 1953 when 4,278 units were produced. Allis-Chalmers built 29,255 HD-5 crawler tractors over its 10-year production run

Engine & Transmission

  • The Allis-Chalmers HD-5 was powered by a 2-cylinder General Motors Detroit Diesel engine. It produced 38.24 drawbar horsepower or 47.85 power takeoff (PTO) shaft horsepower at 1,800 rpm. The engine had a 4.25-inch bore and a 5.0-inch stroke. An ether injection system aided cold-weather starting. The engine drove rear track sprockets through a five-speed manual transmission offering four speeds forward and a reverse. The HD-5's forward speeds were between 1.46 and 5.47 mph; reverse speed was 1.99 mph.

Track and Suspension

  • The standard HD-5 rode on a pair of 33-link steel tracks spaced 44 inches apar, with a front track support mounted on a steel leaf spring. Optional track arrangements included 33-link tracks spaced 60 inches apart. There also was an optional 37-link track on 60-inch spacing with choice of sprung or rigid front support. Tracks were 13 inches wide with four lower support rollers per side for the 33-link track and five rollers per side for the 37-inch track.


  • General Dimensions

  • The HD-5 was 125 inches long, 70 inches wide (standard) or 86 inches wide in a wide-track version. It stood 60.4 inches tall and weighed 5.9 tons without optional equipment. It had a 37-gallon fuel tank and a  http://www.ehow.com/info_8194794_specs-allischalmers-hd5.html#" rel="nofollow - Options

    • Extra-cost optional equipment for the HD-5 included an eight-foot bulldozer blade and a front loader with choice of buckets from 0.75 yards to 1.5 yards. Allis-Chalmers also offered a canopy, fully-enclosed cab, track guards, radiator and engine guards, a seat-back guard and tow  http://www.ehow.com/info_8194794_specs-allischalmers-hd5.html#" rel="nofollow -

      Read more:  http://www.ehow.com/info_8194794_specs-allischalmers-hd5.html#ixzz1pTiDUP9O" rel="nofollow - Specs for an Allis-Chalmers HD-5 | eHow.com   http://www.ehow.com/info_8194794_specs-allischalmers-hd5.html#ixzz1pTiDUP9O" rel="nofollow - http://www.ehow.com/info_8194794_specs-allischalmers-hd5.html#ixzz1pTiDUP9O        




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      Faith isn't a jump in the dark. It is a walk in the light. Faith is not guessing; it is knowing something.
      "Challenges are what make life interesting; overcoming them is what makes life meaningful."


Replies:
Posted By: dadsdozerhd5b
Date Posted: 18 Mar 2012 at 9:45am
thanks coke. i always love reading about my machines. hard to beleive they are still running after 56 years.Smile

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HD5B, HD5G, (2) FARMALL A's, CUB. DO IT RIGHT THE FIRST TIME, IGNORE THE LAUGHTER. FLANNEL IS ALWAYS IN STYLE.

Posted By: wayneIA
Date Posted: 25 Mar 2012 at 9:31am
The transmission, had 5 forward and one reverse gears. The loader transmission had 4th forward gear turned into a reverse, so you had 4 forward and 2 reverse gears (mine is a loader though with 5 forward and 1 reverse, I don't know why though).  This is according to my book that I have for my crawler, don't know how correct the loader 2 speed reverse is since mine doesn't agree with what the book claims, but one guy I know had one too, and he said it had the 2 reverse gears, and another transmission I've seen out of loader also had 2 reverses. 

Posted By: Coke-in-MN
Date Posted: 25 Mar 2012 at 9:46am
the original configuration was with the single speed reverse , later updates went to the 2 speed. It may have been updated later , the 48 HD5B I had someone had changed the transmission to 2 speed reverse.  All the later HD5 machines I had used 2 speed except for one 5G I bought for parts , early Srl# and trany was single speed reverse. 
 Unsure at that point if someone had swappd these with later or rebuilt with the extra gear . Case is the same for both .  


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Faith isn't a jump in the dark. It is a walk in the light. Faith is not guessing; it is knowing something.
"Challenges are what make life interesting; overcoming them is what makes life meaningful."


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