Farm Equipment - AC 200 hydraulic leak

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AC 200 hydraulic leak

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=187879
Printed Date: 07 May 2024 at 7:02pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: AC 200 hydraulic leak

Posted By: Duckman
Subject: AC 200 hydraulic leak
Date Posted: 25 Apr 2022 at 8:45pm

My 200 has a hydraulic fluid leak below the steering wheel behind the control panel counsel. The fluid runs out onto the floor of the tractor. Would anyone have a thought as to what may be leaking? The leak just started while mowing this past weekend. I haven't had a chance to work on it yet and thought maybe I could get some good advice on here. I've never done any tractor mechanics but I am mechanically inclined and have the shop manual for the AC 200 so I have just enough to be dangerous! Lol. Any help would be appreciated.

Replies:

Posted By: Albert
Date Posted: 25 Apr 2022 at 9:28pm

sounds like a hose on the steering hand valve or the hand valve its self needing a seal kit.

could be just a loose hose.

Posted By: DSeries4
Date Posted: 26 Apr 2022 at 4:20pm

Seals on the steering motor need to be replaced. Could also be a line. Take the hood off and you will have a better idea.

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Posted By: DanWi
Date Posted: 26 Apr 2022 at 6:12pm

Don't try and take the steering column apart to get to the valve you just unbolt the valve from off the bottom of the column. Search other posts about this.

Posted By: Duckman
Date Posted: 17 May 2022 at 11:57pm

Thank you all for your help. I took the hood off and then could see the steering valve and the four lines attached to it. The line that returns to the sump had about six little pin holes in it. I replaced the line and was leak free for a few hours but the leak returned. It was a much slower leak the second time around. I would guess the seals in the valve are bad and I'll be doing a rebuild on it soon. I'm going to replace all the lines also as two of them look to be original lines and the third is like the one I replaced, probably 30 years old anyway. I'll be back when I get that done to find out how to get the system bled. Thanks again for the help. I learned from your input and I appreciate you for that!

Posted By: MACK
Date Posted: 18 May 2022 at 8:45pm

Air is not much of a problem. Turn right to left and back a few times and you are free of air. MACK