Farm Equipment - 850 Versatile

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850 Versatile

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=149462
Printed Date: 18 May 2025 at 3:39pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: 850 Versatile

Posted By: Jwmac7060
Subject: 850 Versatile
Date Posted: 14 Apr 2018 at 11:46am

Son was running our 850 on finisher yesterday and steering went nuts. Turn the wheel all the way around and it suddenly turns real hurky jerky same other way have to turn the wheel all the way around both ways for it to respond..is this the orbit motor..all other hydraulics are fine

Replies:

Posted By: Amos
Date Posted: 14 Apr 2018 at 4:22pm

Likely piston in steering cylinder broke or something similar or a first guess...

Posted By: Jwmac7060
Date Posted: 14 Apr 2018 at 4:41pm

It has two cylinders on it.so are you saying because it will turn just not responsive on first motion of steering wheel that it's the cylinders not the motor

Posted By: DrAllis
Date Posted: 14 Apr 2018 at 8:27pm

As a general rule of thumb, orbitrols (steering motors) for open center hydraulic systems never go bad. They leak once in a while and that's about it.

Posted By: Jwmac7060
Date Posted: 14 Apr 2018 at 10:38pm

So you are leaning towards the steering cylinders then Dr. The steering wheel turns easily just no response till you've made about 4 revolutions of the wheel

Posted By: DrAllis
Date Posted: 14 Apr 2018 at 10:56pm

Disconnect and plug the lines or hoses at ONE steering cylinder and test it. Then, reconnect it and do the other cylinder. Yes, this means having caps or plugs for testing.