Farm Equipment - D14 Lift arm problem

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D14 Lift arm problem

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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=8025
Printed Date: 01 Feb 2025 at 5:04pm
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Topic: D14 Lift arm problem

Posted By: acw592
Subject: D14 Lift arm problem
Date Posted: 12 Feb 2010 at 11:55pm

I have a D14 we just bought that I have been working on and the lift arms will not go down. I just changed the hose inside that goes from the ram cylinder to the transport valve. The cylinder and arms moves freely when I had the transport valve off and when it was apart. It has new fluid in it and they will raise but will not lower. I tried putting my brothers and my weight on it which is over 400 pounds. still wouldnt lower. One guy I spoke with said it was probably the hold valve sticking. I looked in the manual and see what he is talking about. I was trying to read about removing the pump assembly. I was wondering if that sounded like it was the likely problem to you guys and how tough of a job it was. Also, I did try to adjust the traction control to see if that was engaged and not allowing the arms to lower. I went both ways at the adjusting block . no change.

Replies:

Posted By: jaybmiller
Date Posted: 13 Feb 2010 at 7:09am

The 'hold position valve' is probably stuck or the linkage to it is not adjusted right. According to the I&T AC-201 book,page 73, Fig 146, it's item #20.the control rod is up and left of it.Good news is that's outside work ! Fig #150, #23 is the housing,has hose to ram,hose to TB gage,rod to lift/lower.#17 is the plug that holds the spring and ball inside.Carefully unscrew as there is oil in there,spring and ball may come out so have good lighting and CLEAN rags underneath.

Maybe some 'crud' in there or rust(?) from sitting around with water in oil ?

Hopefully, some of what I wrote makes sense..Others have had their's apart,my D-14s are still virgins!

Good luck, let us know when you're up and running and what cures it!!

Jay

Posted By: DrAllis
Date Posted: 13 Feb 2010 at 8:00am

Make absolutely sure your Traction Booster (short lever) is all the way down(horizontal) and the Lift-Lower lever is all the way down as well (as far as it will pull down even lower than horizontal). The adjustment rod under the tractors belly needs to be made longer to reduce the Traction Boosters affect (if it has anything to do with what's going wrong). Hold valve is inside the tractors belly, not outside.

Posted By: acw592
Date Posted: 13 Feb 2010 at 10:11am

I did check the linkage and on the lift/lower lever, I removed the linkage rod to make sure it was going all the way to the "lower" position. I also made sure the traction boost lever was all the way down. When you mentioned making the adjustment rod longer on the traction boost,do you mean loosening the jam nuts so the rod goes forward, towards the front of the tractor? Looks like my next step is to remove the hydraulic pump and look at the hold valve. I'm going to do it anyway, but how bad of a job is it to remove the pump? From what I can tell reading the I&T it doesnt look too bad.

Posted By: newbewd45
Date Posted: 08 Jun 2010 at 7:01am

Which manual is the best for understanding how to adjust this. Also is this the same for method for the wd45?

Posted By: michaelwis
Date Posted: 08 Jun 2010 at 7:14am

very interested in what you find out .. same problem with my d-15 series 2.except i cant get the lift arms to go up or down

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WD WD45 DIESEL D 14 D-15 SERIES 2 190XT TERRA TIGER ac allcrop 60 GLEANER F 6060 7040.and attachments for all Proud to be an active farmer