Construction and other equipment - 653 Dozer reverse issue

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653 Dozer reverse issue

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=58600
Printed Date: 09 Jun 2024 at 11:04pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: 653 Dozer reverse issue

Posted By: floorman
Subject: 653 Dozer reverse issue
Date Posted: 20 Oct 2012 at 1:22am

I have a 653 Dozer from the mid 70's that will not reverse. Previously it would not reverse if it was nose down, but if I would lift the body level with the blade it would reverse. Now it will not. I cannot find anyone local to work on this issue, or provide any suggestion for repair. The engine has been rebuilt recently. I have manuals, but they skim over the transmission.

Any clues?

Replies:

Posted By: orangeman
Date Posted: 20 Oct 2012 at 4:44am

Check to make sure your fluid levels are full in the transmission and torque converter.

Posted By: Coke-in-MN
Date Posted: 21 Oct 2012 at 10:26am

Hyd Clutch pack . check fluid levels is first idea.

My HD4 lost reverse while running it and found it had broken spring in the shuttle valve where the control would not slide into position to allow oil to reverse side of clutch pack. new spring and it worked again. I had fwd and neutral but rev just quit while backing out of excavation. .

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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: floorman
Date Posted: 23 Oct 2012 at 10:43pm

Thanks. Fluids are good and been changed. Will check spring.

Posted By: Coke-in-MN
Date Posted: 23 Oct 2012 at 11:53pm

In the manual there should be some thing s on hyd pressure and which lines feed what , I also believe there is a listing of where pressure reading can be taken . These are in the shop service manuals.

Should be a filter in that system also - believe it is mounted in front of engine area small can shaped fixture as it is high pressure filter .