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HD6 noise

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=39901
Printed Date: 21 Jun 2024 at 3:36pm
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Topic: HD6 noise

Posted By: MACK
Subject: HD6 noise
Date Posted: 01 Nov 2011 at 9:17pm

I have a HD6E that has a loud pop in final drive or track when it is on a hard push. Sprockets and rails are all good. Sounds like external not internal but could be wrong. Any one have idea of what is wrong. MACK

Replies:

Posted By: Mactractor
Date Posted: 02 Nov 2011 at 2:48am

Does the recoil system in both track frames seem to be keeping tension on the tracks according to your adjustment at all times? A sticky piston or broken spring can cause the track to buckle under the sprocket when reversing the tractor, or suddenly the piston will reposition in the bore with the tractor goin forward under load. An adjuster screw jumping threads under load when threads are shot is common. Any of these things cause impacting and noise as you described

Posted By: doctorcorey
Date Posted: 02 Nov 2011 at 9:40am

I had that problem on my 7G. Very loud popping and sounded like a broken gear or something. Turns out the tracks were too tight. I have the hydraulic adjuster type.

Posted By: dadsdozerhd5b
Date Posted: 02 Nov 2011 at 6:59pm

could also be a bearing going bad inthe idler. put the blade downa d take the pressure off the idler and try to move it with a diging bar and see if it has play. sometimes internal issues sound like external issues. check the final oil and drain a little out of the bottom to see if you have metal or pieces. good luck.

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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: MACK
Date Posted: 02 Nov 2011 at 9:50pm

Right side got worse so broke the track and jacked it up. I did not luck out. Sounds like teeth missing on top shaft in final drive. Guess I will have to go deeper tomorrow.

Thanks to all you guys who tride to help. Sounds like I will be looking for some parts later. MACK

Posted By: peter hobbit
Date Posted: 03 Nov 2011 at 2:49am

Hi Mack i was going to ask you the same question as macktractor ,I had a simalar thing

happen to me . On the side this is happening to how well dose it steer . On Our machine The hydraulic pump for the steering was week on one side when you tried to turn sometimes it would make a noise . You could try swapping the hoses on the pump to

isolate a problem with the pump.if it changes it could be the pump or the valve,Personally i think because its Hydraulic you loose the feel of the machine

eg . on a manual machine you know how much preasure your are on the steering

system .on a hydraulic steered machine you dont have that so you can do damage

with out knowing it . There are a few other thing to consider .I would check oil preasure

.you could have a blocked pick up in the trans or the steering filter causing low oil preasure .

cheer pete

Posted By: dadsdozerhd5b
Date Posted: 03 Nov 2011 at 4:44pm

that is a common problem if they are run low on oil. the older hd6 was the same rear end as the hd5. not sure about the hd6e model but i have several sets of final drives for the hd5 if they will fit. i am in lansdale pa, not sure where you are if shipping is feasable. let me know if i can help with parts. good luck.

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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.