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Allis Chalmers HD4

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=189141
Printed Date: 29 Apr 2024 at 12:44am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: Allis Chalmers HD4

Posted By: madtrapper
Subject: Allis Chalmers HD4
Date Posted: 27 Jun 2022 at 9:09am

Dozer works fine when cold but when it warms up, gets hot, it looses power.

I let it cool down and it will move again.

Any help please.

Replies:

Posted By: Coke-in-MN
Date Posted: 05 Jul 2022 at 12:38pm

Is that in both directions ? Sounds like clutch pack problems of slipping - internal leakage or worn clutch pack with low hyd pressure .

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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: madtrapper
Date Posted: 05 Jul 2022 at 12:58pm

Total lack of power. Dozer doesn't have enough power to turn the tracks but if you leave it sit for a while and cool down it works again.

Posted By: Coke-in-MN
Date Posted: 23 Jul 2022 at 10:36am

Is that in all 3 gears ? Seen one where they were running in 3rd and complained no power after a bit - overheating from slipping .

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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: madtrapper
Date Posted: 24 Jul 2022 at 12:51pm

It does it in all gears. Works perfect until it warms up and then looses all power

Posted By: Coke-in-MN
Date Posted: 25 Jul 2022 at 3:31pm

Need to check pressure and for leakage , from front pump , torque converter and leaking or worn clutch pack - low hyd pressure to clutches

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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."