Farm Equipment - d 19 hydrilics

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d 19 hydrilics

Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=7720
Printed Date: 03 Nov 2025 at 9:35pm
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Topic: d 19 hydrilics

Posted By: c linn
Subject: d 19 hydrilics
Date Posted: 06 Feb 2010 at 8:20pm

My d19 will lift the lift arms raise but will not hold them up. We have cleaned the main valve and found the check ball under the valve body with the spring stuck. This is a late model d19 and the service manual is very limited. The book says there is a poppet valve also but did not see it. Traction booster is moving the hose but will not raise the rams. Any help or pictures would be appreciated.

Replies:

Posted By: MACK
Date Posted: 06 Feb 2010 at 10:56pm

Pull the top half of valve assy. off. There is a checkvalve in the top half that sets down in the bottom half. Unscrew both pieces of checkvalve you will find a copper washer(or maby pieces of copper washers), replace the copper washer and orings. When you replace the copper washer, tighten it down then hit ball with a soft punch and hammer, tighten and hit it again until it won't anymore and you will be back in business.

MACK