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D10 hydraulic control value ?

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=150892
Printed Date: 21 Sep 2025 at 10:20pm
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Topic: D10 hydraulic control value ?
Posted By: Garrett2006
Subject: D10 hydraulic control value ?
Date Posted: 31 May 2018 at 10:50am
My d10 has the hydraulic control value with 2 levers right side of seat. The pump is above PTO. It has a spot where I think a 3rd lever could be but blocked off. Problem is it’s squirting fluid out the back of one of the caps directly behind the control value. Does anyone know exactly what size orings and springs I would need to go in and replace to fix this or is there a kit. If not I would settle for an aftermarket control value if anyone knows of one that would work. Thanks



Replies:
Posted By: Charlie175
Date Posted: 31 May 2018 at 1:07pm
Ah yes, very familiar...

You have to replace the O ring in the valve slide. I found an after market variety pack and it had one that fit. Be careful if you take that back cover off as it has to BB's for detent control that has a spring. They will fly out!


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Charlie

'48 B, '51 CA, '56 WD45 '61 D17, '63 D12, '65 D10 , '68 One-Ninety XTD


Posted By: DiyDave
Date Posted: 31 May 2018 at 6:03pm
Ah yes, as Charlie said, be careful or you'll lose yer balls...Cry

I think, IIRR, a 170 valve is the match for the D-10/12 valves.  I did add a 3rd lever, about 10 years ago, to my D-10(III), and I found another valve, in a junkyard, to rob a section offa!Wink


Posted By: Garrett2006
Date Posted: 31 May 2018 at 7:32pm
IIRR?


Posted By: Tracy Martin TN
Date Posted: 31 May 2018 at 7:33pm
If I remember right. HTH

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No greater gift than healthy grandkids!


Posted By: jaybmiller
Date Posted: 31 May 2018 at 8:09pm
HTH...Hope This Helps.


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3 D-14s,A-C forklift, B-112
Kubota BX23S lil' TOOT( The Other Orange Tractor)

Never burn your bridges, unless you can walk on water


Posted By: Ranse
Date Posted: 31 May 2018 at 8:52pm
If it's just worn out O-rings it will be a fairly simple fix. If it still squirts after you replace them, then the inside of your caps are probably rusted and pitted and the O-rings can't seal. I had a machine make new ones for me because you can't buy them. I probably wasted my money because the valve still doesn't hold well. There is no kit that I know of. You can buy a few pieces from Agco, but not much. I've considered an aftermarket valve myself. Using one would probably mean sacrificing the traction booster.


Posted By: TeamAllis
Date Posted: 01 Jun 2018 at 3:19am
It sounds like the O-rings, pull the valve out. When doing this put a Wall-Mart bag around it to stop the 2 balls from flying out into you shop area. Been there and done that, it works.



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