Farm Equipment - Hitch Descent Rate Valve

Print Page | Close Window

Hitch Descent Rate Valve

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=209585
Printed Date: 06 Jan 2026 at 10:08pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: Hitch Descent Rate Valve

Posted By: Clayfoot
Subject: Hitch Descent Rate Valve
Date Posted: 03 Jan 2026 at 5:30pm

My early D14 lacks the valve that adjusts the hitch descent speed, and since the wife will be driving it for the first time this spring with a mechanical transplanter and me in the back, I'd like to plumb something in the hydraulic line that accomplishes the same result and prevents the wife from dropping me and the transplanter hard. Are these just needle valves/flow control valves? Would it really matter where I'm the line I plumb it in (in thinking at the rest end instead of under the gas tank)? Anyone have a good picture of a factory valve? Thanks in advance!

Replies:

Posted By: WF owner
Date Posted: 03 Jan 2026 at 6:14pm

Why couldn't you put a regular 1/4 turn valve in the line and adjust it to a setting where the hydraulics work at the speed you want?

Posted By: DrAllis
Date Posted: 03 Jan 2026 at 6:35pm

There is not a "rate-of-drop" valve for a D-14 tractor from Allis-Chalmers. There is such a thing as a "one-way hydraulic flow control valve" that has a speed/flow control knob on it for less than $30 bucks. Use Google to find one. Place it at the rear to the left of the seat between the steel tube elbow and remote coupler manifold. One way it restricts flow and the other way is free flow.

Posted By: Clayfoot
Date Posted: 04 Jan 2026 at 10:48am

That's exactly what I was hoping to hear. I'll be adding that in sooner rather than later and doing my hydraulic build in to of that. Thank you gents!