Construction and other equipment - HD4 hydraulic specs

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HD4 hydraulic specs

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=138781
Printed Date: 02 Aug 2025 at 11:08pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: HD4 hydraulic specs

Posted By: Buck1278
Subject: HD4 hydraulic specs
Date Posted: 25 May 2017 at 8:57pm

I was wondering if anyone can help me with the hydraulic gpm specs on an HD4. I sold the machine last year along with the manuals, but I'm selling the backhoe that was on it and can't remember what the specs are off of the top of my head. Any help would be greatly appreciated!!
Thanks

Replies:

Posted By: Buck1278
Date Posted: 01 Jun 2017 at 10:18pm

Anyone??

Posted By: John(IN)
Date Posted: 02 Jun 2017 at 3:59pm

My operator manual says 24 GPM

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Learn something every day!

Posted By: Coke-in-MN
Date Posted: 03 Jun 2017 at 8:37am

Thought it was around that number 24 GPM and think about 2200 PSI - the dozer I believe was 18 GPM

Unsure of what the 615 hoe uses - mine had a diverter valve mounted by rt side of seat that shut off the valve body for loader when the hoe was used - sending all oil to hoe valve body and returning it to tank

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