Farm Equipment - WD Hold position

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WD Hold position

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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=8029
Printed Date: 18 Jan 2025 at 1:35pm
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Topic: WD Hold position

Posted By: Bill in Md
Subject: WD Hold position
Date Posted: 13 Feb 2010 at 7:25am

I am having trouble with the hold postion on my WD. Everything is set correctly acording to the book but the back blade will drift up or down slowly after it is set. i am thinking it is a weak spring or dirty seat for the ball in the valve. Has anyone else experienced this?

Replies:

Posted By: Don(MO)
Date Posted: 13 Feb 2010 at 7:42am

Bill, It sounds like it's set to DrawBar control or some call it weight transfer. Have you tried setting it to the hold position? In Drawbar control it will come up just like you are saying. If it's set in Hold position then rest the "A" screw up about 1/4" on the housing and see if that helps.

Don

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3 WD45's with power steering,G,D15 fork lift,D19, W-Speed Patrol, "A" Gleaner with a 330 corn head,"66" combine,roto-baler, and lots of Snap Coupler implements to make them work for their keep.

Posted By: Bill in Md
Date Posted: 13 Feb 2010 at 7:45am

it is set to hold position acording to the book. i will try adjusting the A screw. thanks Don.

Posted By: Don(MO)
Date Posted: 13 Feb 2010 at 7:56am

Bill, There is a little dimple in the side of case the "A: screw seats into, If you need to move it up to make her work then readjust the linkage a little.

Posted By: jjwo
Date Posted: 13 Feb 2010 at 9:09am

We have had to replace a couple of the hold controls. On top of the pump, not the whole pump.

Posted By: Bill in Md
Date Posted: 13 Feb 2010 at 9:50am

what goes bad on the hold valves? there's not much inside; spring, ball and seat, cam. can they be rebuilt?

Posted By: Alberta Phil
Date Posted: 13 Feb 2010 at 10:09am

I've been having the same problem with my WD. It uses to be fine, but last spring I used the Snap coupler plow and reset for draft control. After plowing and re installing drawbar, and setting all controls back to where they were, I can't seem to find a hold position that holds without floating up or down.

Posted By: Bill Long
Date Posted: 13 Feb 2010 at 10:35am

Guess we have to remember that the WD is anywhere from 57 - 63 years old. Things are basically build well but over that period of time they wear.

Yes, it is just a spring and a ball but I'm sure that can wear too. When we rebuilt them we always tapped the ball using a flat punch to seat it. I think it was just superstision but that may be the thing to do now.

Let us know how it works.

Good Luck!

Bill Long

Posted By: Bill Long
Date Posted: 13 Feb 2010 at 10:37am

Hey Bill in MD tell me where you are in Maryland. I may have asked before but forgot.

Good Luck!

Bill Long

Posted By: Bill in Md
Date Posted: 13 Feb 2010 at 11:23am

Bill - Im over on the eastern shore outside of Ridgly. Im not complaining about the old girl. She has dug me out of over 50 inches of snow and pulled a bob cat out twice in the past week. i was thinking of getting a set of the cylinder stops to control the depth of the back blade that tractor supply sells.