This site is not affiliated with AGCO Inc., Duluth GA., Allis-Chalmers Co., Milwaukee, WI., or any surviving or related corporate entity. All trademarks remain the property of their respective owners. All information presented herein should be considered the result of an un-moderated public forum with no responsibility for its accuracy or usability assumed by the users and sponsors of this site or any corporate entity.
The Forum Parts and Services Unofficial Allis Store Tractor Shows Serial Numbers History
Forum Home Forum Home > Allis Chalmers > Farm Equipment
  New Posts New Posts
  FAQ FAQ  Forum Search   Events   Register Register  Login Login


D19 Lift arms wont stay up
 Post Reply Post Reply
Author
Message
  Topic Search Topic Search  Topic Options Topic Options
Buddy2366 View Drop Down
Bronze Level
Bronze Level


Joined: 14 Jul 2024
Location: ECIL
Points: 46 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Buddy2366 Quote  Post ReplyReply Direct Link To This Post Topic: D19 Lift arms wont stay up
    Posted: 18 hours 51 minutes ago at 8:00am
D19 gas, serial#15090, lift arms raise plow, as soon as valve is returned to hold posttion, lift arms drop. I removed 4 bolts from top and 2 from bottom of valve stack and removed and checked ball and seat/spring. O ring around assymbly looked ok. Did not detect visually any obstruction/foreign material under ball/seat. Cleaned with carb cleaner. re-installed valve stack, same result. Where do I look from here?
Back to Top
Sponsored Links


Back to Top
DrAllis View Drop Down
Orange Level Access
Orange Level Access


Joined: 12 Sep 2009
Points: 23665 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 7 hours 49 minutes ago at 7:02pm
That check ball and spring (between the upper half and lower half of the valve) is only part of it. The poppet on the opposite side of the ball/spring has a seat made into it and it seals against the seat made into the upper casting. I don't know if you could use some lapping compound and get the two parts to like each other or not. Be sure to replace that Oring regardless. I wish Mack could answer your question. D-19's are somewhat known for this. A stiffer spring wouldn't hurt.
Back to Top
 Post Reply Post Reply
  Share Topic   

Forum Jump Forum Permissions View Drop Down

Forum Software by Web Wiz Forums® version 11.10
Copyright ©2001-2017 Web Wiz Ltd.

This page was generated in 0.087 seconds.


Help Support the
Unofficial Allis Forum