Farm Equipment - 3pt position control doesn't work....

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3pt position control doesn't work....

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=47420
Printed Date: 29 Aug 2025 at 10:26am
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Topic: 3pt position control doesn't work....

Posted By: Eldon (WA)
Subject: 3pt position control doesn't work....
Date Posted: 16 Mar 2012 at 9:35pm

I have a 175 and a 190 that the position contol (height/depth) lever doesn't do anything. Is this a linkage problem or a valve problem? Is the traction booster and position control handled by that same valve?

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Replies:

Posted By: MACK
Date Posted: 16 Mar 2012 at 10:02pm

If the linkage is all there they need abjusted.

Yes they operate the same valve. MACK

Posted By: Eldon (WA)
Date Posted: 16 Mar 2012 at 10:12pm

So if the tb valve is free and working it will be in the linkage? Kinda hard to see how things work under there, but at least I have a couple of tractors that work right...guess I will park them together and start studying.....the 175 I swapped out the L shaped mounting plate because it was rusted in half...maybe the linkage got repositioned wrong when I bolted everything back together. The guy that designed that mess must have been on drugs LOL!

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Posted By: Allen Dilg
Date Posted: 16 Mar 2012 at 11:02pm

Hello Eldon On my son's 175 we have had a problem similuar. From what I remember see what section in the valve body has the traction segement and remove the cap on the rear of valve, gently push- pull the spool, it needs to move. Hope this helps

Posted By: skipwelte
Date Posted: 16 Mar 2012 at 11:31pm

Youve got something out of adjustment or just plain stuck. On a 190 there is a linkage on the right side that piviots on a boss on the front of the rear axle housing. That link can be turned upside down during a rear end split. Check it on a couple of your 190s!! Good luck!!

Posted By: DSeries4
Date Posted: 16 Mar 2012 at 11:40pm

The position control is not in the valve body. Check the linkage - there is a piece of the position control that comes off the right side draft link. I've seen several that are broken (including mine), that would explain why it does not work.

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