Construction and other equipment - HD5 axle failure cause

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HD5 axle failure cause

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=72380
Printed Date: 28 Jun 2025 at 2:52am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: HD5 axle failure cause

Posted By: Bergie
Subject: HD5 axle failure cause
Date Posted: 24 Jun 2013 at 10:59pm

After removing the axle that brokein front of the nut, I'm wondering why this happens. I did notice that the support arm pin/bushing had about .040 of wear. Would this cause the rail to wonder back and forth enough to cause a problem?

Replies:

Posted By: Coke-in-MN
Date Posted: 25 Jun 2013 at 8:39am

Movement of the track frame would be like a lever in putting pressure onto the bearing area of axle . As the truck frame is supported in two places both on rear housing and by the link-belt double roller bearing, a heavy side load might cause problem .

I do have a axle if you need one .

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Posted By: Bergie
Date Posted: 25 Jun 2013 at 1:08pm

I have an axle and all the parts, but I was wondering if it would be worth replacing that pin/bushing. Do you have one of them to sell? Otherwise I could make one I guess.

Posted By: Coke-in-MN
Date Posted: 25 Jun 2013 at 1:35pm

Sold that along with the truck frame I had extra, don't think I have another one around. Might try shimming the end .

On the HD5B I had the casting where the inside mount was located broke on the previous owner . He ran the machine until he broke the axle also . Left track would walk out about 3" or more on front .