Welcome! Please use the navigational links to explore our website.
PartsASAP LogoCompany Logo (800) 853-2651

Shop Now

   Allis Chalmers Case Farmall IH Ford 8N,9N,2N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver
 
Marketplace
Classified Ads
Photo Ads
Tractor Parts
Salvage

Community
Discussion Forums
Project Journals
Your Stories
Events Calendar
Hauling Schedule

Galleries
Tractor Photos
Implement Photos
Vintage Photos
Help Identify
Parts & Pieces
Stuck & Troubled
Vintage Ads
Community Album
Photo Ad Archives

Research & Info
Articles
Tractor Registry
Tip of the Day
Safety Cartoons
Tractor Values
Serial Numbers
Tune-Up Guide
Paint Codes
List Prices
Production Nbrs
Tune-Up Specs
Torque Values
3-Point Specs
Glossary

Miscellaneous
Tractor Games
Just For Kids
Virtual Show
Museum Guide
Memorial Page
Feedback Form

Yesterday's Tractors Facebook Page

  
John Deere Tractors Discussion Board

Re: 70 power steering trouble


[ Expand ] [ View Replies ] [ Add a Reply ] [ Return to Forum ]

Posted by Bobl1958 on September 25, 2012 at 11:28:09 from (68.98.205.31):

In Reply to: 70 power steering trouble posted by 55deere70 on September 24, 2012 at 17:48:16:

Here is what Frank told me to do and it worked:

Nope. Stop right now and I can save you some work. I will lay odds that it is a step in the face of the cam on the end of the actuator sleeve. Look back in the archives for some of my previous repsonses on that, and you'll likely find some of the illustrations I ginned up in MS Paint.
If you remove the actuator sleeve, you'll find two short, 1/4" dowel pins. They ride on a form cam face and on a parallel form on the end of the actuator sleeve. When you turn the wheel and meet a resistance, the spring loaded pins ride up, or down depending on a LH or RH turn, and displace the actuator sleeve in a fore or aft direction. When this movement takes place, the lever hooked to the actuator sleeve pushes or pulls a spool valve which directs fluid to one side or the other of the rotary cylinder of the lower pedestal, and this assists your turn. Now over time, the pins get worn with flats, the cam faces get worn with flats right in the center of travel (straight ahead), so in combination, when you go to turn, the pins will not easily slide up the cam face, instead hanging up on the step until you give it a harder nudge, then it jumps right now, you get instant assist, but you feel it in the wheel as a "crunch" or jerk. Stoning the cam faces back to smooth and parallel and replacing the pins generally cures everything, provided you don't have any other leaking going on. Let me know when you mean to go through it. Be happy to tag along via e-mail.


Replies:




Add a Reply

:
:
:

:

:

:

:

:

:

Advanced Posting Options

: If you check this box, email will be sent to you whenever someone replies to this message. Your email address must be entered above to receive notification. This notification will be cancelled automatically after 2 weeks.



 
Advanced Posting Tools
  Upload Photo  Select Gallery Photo  Attach Serial # List 
Return to Post 

TRACTOR PARTS TRACTOR MANUALS
We sell tractor parts!  We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]

Home  |  Forums


Today's Featured Article - Madison's County - by Anthony West. Philip Madison has been a good friend of mine for quite some time. He has patiently suffered my incessant chit chat on the subject of tractors for longer than I care to remember, and on many occasions he has put himself out, dropped what ever it was he was doing, to come and lend a hand cranking handles, or loading a find onto a trailer. Although he himself has never actually owned or restored a tractor, he was always enthusiastic and always around helping with other peoples projects. ... [Read Article]

Latest Ad: Super WD9. [More Ads]

Copyright © 1997-2024 Yesterday's Tractor Co.

All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy

TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.

Yesterday's Tractors - Antique Tractor Headquarters

Website Accessibility Policy