Yesterday's Tractor Co. Parts for Farm Tractors - Compare our Prices!
Click Here or call 800-853-2651 
   Allis Chalmers Case Farmall IH Ford 9N,2N,8N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver
 FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   Traditional YT Forum ViewClassic View   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

970 Case Hydraulic Help


 
Post new topic    
View previous topic :: View next topic  
Author Message
tammarine
New User


Joined: 04 Feb 2013
Posts: 2
Location: California

Report to Moderator

PostPosted: Mon Feb 04, 2013 1:35 pm    Post subject: 970 Case Hydraulic Help Reply to specific post Reply with quote

Need some help resolving hydraulic issues with a 970 Case 8 spd Manual Shift. Zero to very little hydraulic pressure to remotes, steering, and three point even when engine is at full throttle. However, PTO seems to work just fine even on a maximum work load so not sure that it is the pump. After trying to generate pressure on the remotes at full throttle, there appears to be a lot of air foaminess in the oil when viewing the glass indicator bubbles on the side of the transmission housing. If the pump is sucking air at the intake, then why does the PTO perform ok? Have seen similar threads at this site previous, and wondering if someone here might give me some clues before I tear this thing down and go after it.
 
Back to top
View user's profile
John Saeli
Tractor Expert


Joined: 19 Dec 2009
Posts: 2208


Report to Moderator

PostPosted: Mon Feb 04, 2013 2:31 pm    Post subject: Re: 970 Case Hydraulic Help Reply to specific post Reply with quote

I had a similar problem with an 1175. Turned out to be the rubber sealing ring between the pump & inlet port. Simply pull the pump & inspect or replace. The PTO only requires about 200+ pounds of captured oil press. to work.
 
Back to top
View user's profile
1370rod
Tractor Expert


Joined: 07 Mar 2012
Posts: 2695


Report to Moderator

PostPosted: Mon Feb 04, 2013 4:19 pm    Post subject: Re: 970 Case Hydraulic Help Reply to specific post Reply with quote

As John S has mentioned a air leak could be causing the problem. A simple flow test of the hyd pump would tell you what to service, pump or hyd valve. We can suggest items to look for but they would be just that, guesses. The flow test is the proper start to this repair, but if there is no way to have one done you can start by removing the pump and inpecting the seal. I just hate to see you spend time and money just guessing, Rod.
 
Back to top
View user's profile
tammarine
New User


Joined: 04 Feb 2013
Posts: 2
Location: California

Report to Moderator

PostPosted: Tue Feb 05, 2013 9:49 am    Post subject: Re: 970 Case Hydraulic Help Reply to specific post Reply with quote

Thanks for the quick feedback. It will probably be next month before I can get to this project. Sound running tractor that is still around for mostly just sentimental reasons. No urgent need for it at the moment, but would like to keep it going as long as possible; especially if it's only simple/inexpensive fixes. I will check back in later to post what the result was.
 
Back to top
View user's profile
Display posts from previous:   
Post new topic    Yesterday's Tractors Forum Index -> Case and David Brown All times are GMT - 8 Hours
Page 1 of 1

 
Jump to:  
TRACTOR   PARTS TRACTOR   MANUALS
Same-Day Shipping! Most of our stocked parts ship the same day you order (M-F).  Expedited shipping available, just call!  Most prices for parts and manuals are below our competitors.  Compare our super low shipping rates!  We have the parts you need to repair your tractor.  We are a Company you can trust and have generous return policies!   Shop Online Today or call our friendly sales staff toll free (800) 853-2651.

YT Home  |  Forums Home

Copyright © 1997-2014 Yesterday's Tractor Co.

Powered by phpBB © 2001, 2005 phpBB Group

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