Farm Equipment - D19 Power Steering Control Valve

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D19 Power Steering 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=181369
Printed Date: 25 Sep 2025 at 5:34pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: D19 Power Steering Control Valve

Posted By: KenBWisc
Subject: D19 Power Steering Control Valve
Date Posted: 23 Jun 2021 at 3:13pm

After cleaning and replacing O rings in my Control Valve my power steering wants to motor to the extreme right. I pulled the assemble apart again expecting I had installed the spool backwards. Not the case. I see in the Shop Manual diagram an inactive plunger which I don’t seem to have. Did I loose it or did some not have it?
What are your ideas as to what causes the motoring?

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'34 WC #629, '49 G, '49 B, '49 WD, '62 D-19, '38 All Crop 60 and still hunting!

Replies:

Posted By: MACK
Date Posted: 23 Jun 2021 at 9:23pm

May have lost a spring or plunger from control valve or misadjusted nut on control spool. MACK