D15 hitch control 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=153370
Printed Date: 26 Apr 2025 at 2:20pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: D15 hitch control valve
Posted By: powertech84
Subject: D15 hitch control valve
Date Posted: 26 Aug 2018 at 7:44am
I bought a cheap loader for my d15, and got it put on, but what i found is that i can't lower the loader without first lowering the rear blade. I thought that the knob on the outlet on the rear of the tractor was supposed to hold the rear hitch up. It doesn't do anything, threaded in or out. Was i wrong, or do i have something not working right inside that valve? I was planning on selling it this fall as a complete setup for someone to clear snow, but as it sits, its kind of a useless setup. 
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Replies:
Posted By: copyrite1972
Date Posted: 26 Aug 2018 at 11:10pm
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You need a valve that "Switches" between the front and rear hydraulics. On my 15II, I can only use the loader, or the rear lift, switching between the two as needed. Seems like the hydraulics are a bit limited on these tractors, unless you go all out like Dr.Allis did on his! ------------- D15 Series II |
Posted By: DiyDave
Date Posted: 27 Aug 2018 at 4:48am
The loader can be disabled, by installing a simple gate valve, in the single line, that goes to the 2 loader cylinders. Tractor hydraulics are just doing what they were designed to do. that means lift arms lift first, then the remote cyl lifts. On the drop, the remote drops first, then the lift arms drop. System was designed for plows or discs, loader, not so much...
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