Yesterday's Tractor Co. Fast, Friendly Parts Service
Click Here or call 800-853-2651 
   Allis Chalmers Case Farmall IH Ford 8N,9N,2N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver
 
Marketplace
Tractor Manuals
Tractor Parts
Classified Ads
Photo Ads

Community
Discussion Forums
Project Journals
Tractor Town
Your Stories
Show & Pull Guide
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

Related Sites
Tractor Shed
TractorLinks.com
Ford 8N/9N Club
Today's Tractors
Garden Tractors
Classic Trucks
Kountry Life
Enter your email address to receive our newsletter!

subscribe
unsubscribe
  
John Deere Tractors Discussion Forum
Show Parts for Model:

4020 hydraulic fluid overflow leak

Author  [Modern View]
jberg6

01-20-2013 07:46:16
67.142.175.24



Report to Moderator

My 66 4020 pwr shift diesel has a line under the power steering pump in the dash that leaks. I believe its an overflow line that is only supposed to have around 15 psi pressure at the most, but when I start it, it will blow the rubber line, which is cappable of 150 psi. The old line was metal, but deere sells a rebuild kit with two metal fittings and a rubber line.please help




[Reply]   [No Email]
Bob

01-20-2013 19:26:58
64.255.159.192



Report to Moderator
 Re: 4020 hydraulic fluid overflow leak in reply to jberg6, 01-20-2013 07:46:16  
Something is probably plugged or a line is squashed between there and where that circuit dumps into the RH side of the transmission housing.



[Reply]  [No Email]
tomstractorsandtoys1

01-20-2013 18:08:38
64.136.27.161



Report to Moderator
 Re: 4020 hydraulic fluid overflow leak in reply to jberg6, 01-20-2013 07:46:16  
Are you using the Deere hose? It is special with a higher psi rating than fuel line hose.I tried fuel line hose and it lasted about five months, the special Deere hose has been on over a year now.



[Reply]  [No Email]
donmyeil

01-20-2013 08:29:56
74.32.241.119



Report to Moderator
 Re: 4020 hydraulic fluid overflow leak in reply to jberg6, 01-20-2013 07:46:16  
I replace them with a brake line that I bend and double flair useing the original ends. Is this line on top of the steering valve or running down the front to the side. Down the side would be a break line not the leak off.



[Reply]  [No Email]
jberg6

01-21-2013 18:02:08
67.142.175.27



Report to Moderator
 Re: 4020 hydraulic fluid overflow leak in reply to donmyeil, 01-20-2013 08:29:56  
Yes its a hose from deere. I believe the line does go to the brakes...why would it have that much pressure



[Reply]  [No Email]
Tim S

01-21-2013 18:57:47
75.49.13.105



Report to Moderator
 Re: 4020 hydraulic fluid overflow leak in reply to jberg6, 01-21-2013 18:02:08  
The plastic line on the back side of the steer valve comes from the pressure control valve, it acts as a dump so that the control valve can move, with out it it creates a hydraulic lock, it dumps into the steer valve housing and then on through the return fitting at the lower left of the base. you could cap it at the steer valve and run it down and tee it into the seal drain return line at the top right of the transmission, or go with a steel line..I only mentioned the "re-route" because there is not much room behind the steer valve..

[Reply]  [No Email]
[Options]  [Printer Friendly]  [Return to Forum]   [Add a Reply]

Hop 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. [ More Info ]

Home  |  Forums


Copyright © 1997-2014 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