HD6G Weak Hydraulics
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=209715
Printed Date: 14 Jan 2026 at 9:55pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: HD6G Weak Hydraulics
Posted By: Paul-HD6G Start-up
Subject: HD6G Weak Hydraulics
Date Posted: 14 Jan 2026 at 7:12pm
I have an HD6G that I'm working harder than its had to work for the last 20 or more years clearing fence rows. We've had this machine for about the last 50 years so I do have a little history with it. The machine sat idle for about 15 years up until about 4 years ago. But I was able to get it started after new batteries and refreshing the fuel. Over the last 4 years I've used it for some small short term projects with no noticeable issues. However, I started using it to push over some trees while clearing an old fence tree line. The longer I use it the weaker the hydraulics become. Can anyone point me in the right direction? I have not been able to locate a new hydraulic filter. I don't have a book on the loader part of the machine so any information would definitely be helpful. Recommended fluid? Filter part number? Any other suggestions..... Thanks for the help
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