Yesterday's Tractor Co. We Have the Tractor Parts You Need
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
  
Restoration & Repair Tips Board

John Deere 4430 clutch problem

Author  [Modern View]
Rob Lewellen

08-08-2012 07:28:00
166.147.104.161



Report to Moderator

I have a 1975 John Deere 4430 quad range that the clutch has started slipping in all gears. System pressure measures 2250 psi. At the clutch port I only have 50 psi and oil is airated. I removed the rockshaft housing and checked the cast iron plate underneath for cracks and it was ok. Now I'm stumped. Any help greatly appreciated!!




[Reply]   [No Email]
430WLPG

08-12-2012 17:00:20
166.181.3.55



Report to Moderator
 Re: John Deere 4430 clutch problem in reply to Rob Lewellen, 08-08-2012 07:28:00  
The main clutch shares the same oil with the two speed and the pressure should be 185psi if it's been run long at 50psi they are all burnt up



[Reply]  [No Email]
JDseller

08-10-2012 20:25:50
208.126.196.144



Report to Moderator
 Re: John Deere 4430 clutch problem in reply to Rob Lewellen, 08-08-2012 07:28:00  
The problem is in the Hi-Lo clutch pack not the main clutch. The power shift Hi-Lo(1-2 or 3-4 shift) uses oil pressure to engage. 50 PSI is way low. It should be in the 135 PSI range. You need to split it and check the Hi-Lo clutch pack out. I would bet that you have blown an oring in a piston. I would rebuild it completely while I was in there.



[Reply]  [No Email]
buickanddeere

08-10-2012 04:54:25
184.151.61.32



Report to Moderator
 Re: John Deere 4430 clutch problem in reply to Rob Lewellen, 08-08-2012 07:28:00  
Given the vintage and hours. Odds are it needs the uptime trans oil pump. A clean screen and new filters. Is the pto valve moving full stroke to. 100% open?



[Reply]  [No Email]
[Options]  [Printer Friendly]  [Posting Help]  [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