Construction and other equipment - HD4 reverse problem

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HD4 reverse problem

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=132666
Printed Date: 25 Sep 2024 at 11:23am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: HD4 reverse problem

Posted By: Derrick250r
Subject: HD4 reverse problem
Date Posted: 04 Dec 2016 at 7:32pm

Good afteroon I'm new to this forum I just bought me a 1984 hd4 dozer.Been working on it for about a month finally got it running like a dream. but after it runs for about an hour it slowly starts to lose reverse.forward works great. If its cold reverse works great only when it heats up it reverse slowly goes away. can someone please point me in the direction to start the process of limitation before I have to pull the tranny. Thank you.

Derrick.......

Replies:

Posted By: Coke-in-MN
Date Posted: 15 Dec 2016 at 2:58pm

the clutch pack may be short of oil pressure - need to check that - seems fwd is normally the side that goes bad on clutches .

As it has a torque converter and clutch pack it's all hyd .

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