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HD11 AC 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=57522
Printed Date: 27 Jun 2025 at 8:17am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: HD11 AC DOZER

Posted By: RL@TLF
Subject: HD11 AC DOZER
Date Posted: 27 Sep 2012 at 2:01pm

I have an HD11 dozer, SN 5601E - I recently had the front cylinders
rebuilt and they work fine. However, I get unequal lift on the blade
and it makes it difficult to get an even cut. Is there any adjustment
on the hydraulic valves or pump controlling the cylinders to equalize
the lift? Thanks for any input.

Replies:

Posted By: Coke-in-MN
Date Posted: 27 Sep 2012 at 2:08pm

Sounds like you have binding somewhere in the system of the blade itself , the cylinders should lift the same unless one has leakage , hyd pressure should equalize and if surface area is the same in both cylinders it should lift the same.

Check your hoses or lines for restrictions both on the pressure side of lift and the release side or return line. Make sure the hoses or lines are not restriction flow in or out.

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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: RL@TLF
Date Posted: 28 Sep 2012 at 1:59pm

Thanks Coke-in-MN, I'll take a look at all the lines.
I don't think I have any binding in the blade itself.

Posted By: ac_sd
Date Posted: 29 Sep 2012 at 9:27pm

Try adjusting the support brace/arms to the dozer blade, that will cause what you are describing.