Farm Equipment - D-19 hydraulics problems

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D-19 hydraulics problems

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=203905
Printed Date: 22 Nov 2024 at 8:11am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: D-19 hydraulics problems

Posted By: braxband
Subject: D-19 hydraulics problems
Date Posted: 30 Oct 2024 at 2:57pm

Hi y'all

We recently acquired my great grandpa's D-19 through an auction and are planning on using it for moving round bales, blading the drive, and moving snow. It runs great but the hydraulics won't hold pressure so they go down with my weight, about 150lbs. I replaced the copper o ring and other o rings in the check valve under the controls it worked great and lifted our bale stabber. It held till I put it in reverse to back up to a bale then down it went. The original o rings didn't have any major damage to them so wondering if we have a bigger issue.

We have an AGCO dealer and a tractor junkyard not far from us where I can get parts if needed. I'm not familiar with hydraulics so any help is appreciated.

Thanks

Braxlee

Replies:

Posted By: DrAllis
Date Posted: 30 Oct 2024 at 6:18pm

I'm no fan of D-19 hydraulic systems, but the problem is in that valve stack. Anything related to the porting and spool to the lift arms is suspect. If it's any consolation, D-19's are some what known for the lift arms settling with a load on them.