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HD 4 Dozer

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=57430
Printed Date: 25 Jun 2025 at 8:14am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: HD 4 Dozer

Posted By: Cdwest
Subject: HD 4 Dozer
Date Posted: 25 Sep 2012 at 12:28pm

Recently replaced disks for steering clutches. Moved dozer apprx 20 yards and now dozer will not move at all. Could this be related to hydraulic pump?

Replies:

Posted By: Tracy Martin TN
Date Posted: 25 Sep 2012 at 12:39pm

Could be hyd pump or torque converter. Will it raise the dozer front will blade against ground. Could be simple as your linkage on hyd valve for shuttle clutch. Need more info to diagnose problem. Tracy Martin

Posted By: Coke-in-MN
Date Posted: 25 Sep 2012 at 2:38pm

Shuttle clutch over the fact of the steering clutches , UNLESS somehow the axles slipped back into housing and are not driving the clutches.

Unusual to loose all movement in few and rev, is the ATF level in the converter full while the system is running ? check level ?

Converter and the hyd system are separate units and drive system is separate from hyd system.

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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: Cdwest
Date Posted: 27 Sep 2012 at 5:22pm

Tracy,

The blade will travel up and down. Not sure what's going on.

Chris

Posted By: Tracy Martin TN
Date Posted: 27 Sep 2012 at 7:41pm

Chris,if the blade will lift dozer, I think your shuttle clutch is not working. It is hyd actuated. Look under the shuttle lever at your left hand, the linkage may have come loose. Does your dozer have a PTO? Is it turning? Can you feel any movement or resistance when using shift lever?Need more info to trouble shoot it. Tracy Martin

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No greater gift than healthy grandkids!

Posted By: Cdwest
Date Posted: 28 Sep 2012 at 7:05am

Tracy,

Thanks for the advice. I'll try to look at this in the coming week.