Construction and other equipment - bimetallic clutches

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bimetallic clutches

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=126120
Printed Date: 28 Jul 2025 at 6:45pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: bimetallic clutches

Posted By: Randaleky
Subject: bimetallic clutches
Date Posted: 19 Jul 2016 at 6:59pm

Need some info on use of the bi-metallic clutches on the hd4 model Allis dozer. I installed the bi-metallic clutches in the drive instead of the fiber old style. I had a bearing go down on the drive pinion and pulled everything out. long story short, I pulled the clutches apart to replace the spring face plate and found the steel plates scratched bad as well as the bi-metallic clutches. the clutches were still working great when I pulled them apart, but I am considering going back to the original type fiber ones. any thoughts and experiences on this would help me make the best decision. thanks Randal

Replies:

Posted By: Tracy Martin TN
Date Posted: 19 Jul 2016 at 7:17pm

Randal, can you post pics of plates and disc? I would like to see them. Tracy

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No greater gift than healthy grandkids!

Posted By: Randaleky
Date Posted: 19 Jul 2016 at 9:00pm

I have never been able to figure out how to do that. I will try to send them to your e-mail acct tom.

Posted By: Coke-in-MN
Date Posted: 19 Jul 2016 at 11:38pm

I have the metallic in my HD5 and no problems at all - thing is they do not seems to hold moisture or rust onto metal discs so work great . the master clutch in the 5 is also metalic

Now in dump trucks i changed over to metallic there also as did my IH 460 utility tractor .

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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."

Posted By: Randaleky
Date Posted: 20 Jul 2016 at 6:49am

thanks coke. I know that with metal on metal there is going to be rough surfaces on the faces of the steel plates and the clutches. I also know that the fiber do not hold up that well. I also work my dozer pretty hard in rocky areas which puts a lot of stress on the clutches. they never did slip and I guess that is what is supposed to happen with the metallis ones. thanks

Posted By: DMiller
Date Posted: 20 Jul 2016 at 6:33pm

Trucking industry originally called them button clutches. Were horrible in the first versions until we were finally schooled on them. When installing the heavy truck clutches align the multiple discs button to button, if get staggered as many would just place them they would chatter like hell when engaging. Would slip until severe loads unless buttons were aligned plate to plate.