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

Attention Forum Users: On the 28th of December 2023 at 9:00am Central Time, we will be taking the forums down for maintenance while we prepare the new forums for your use. Please click here for more information.

Discussion Forum
:

JD 3020 PTO Doesn't Disengage Properly

Welcome Guest, Log in or Register
Author 
rdw5466

05-01-2002 08:10:22




Report to Moderator

I purchased a 1964 JD 3020 gas powershift with 5400 hrs., dual hydraulics 11/2000, knowing that the PTO "sometimes doesn't disengage". The PTO lever is on the right side of the steering wheel. When the tractor is started the PTO shaft is sometimes stopped but usually runs. I have tried adjusting the linkage to no avail. I have heard everthing from a simple adjustment, a main clutch problem, a fluid leak or a PTO clutch replacement which might lead to splitting the tractor. Suggestions from experienced folks would be much appreciated.

[Log in to Reply]   [No Email]
WTW

05-01-2002 10:28:04




Report to Moderator
 Re: JD 3020 PTO Doesn't Disengage Properly in reply to rdw5466, 05-01-2002 08:10:22  
Remove the light switch panel ahead of your toes and locate the PTO lever control rod coming down from the PTO lever control shaft and follow it down to the top of the clutch housing where it is connected to a short control arm. Good chance you will find allot of dirt built up on top of the clutch housing that could be limiting the control arm from traveling clear down. Dirt can get packed in this area and will need to be scratched loose and removed. After getting this area cleaned up check the control arm for being tight on the valve control shaft. This arm has two flats that key it to the control shaft with mating flats. The arm is prone to work loose on the control shaft wearing the arm and sometimes even the shaft. The arm is held on the control shaft by 1/4" nut and flat washer. This nut will work loose and cause the arm to become loose on the shaft and wear out the flats on either one or both. The wear and lost motion results in partial engagement and disengagement of the PTO clutch and brake. This is the first thing to check if you have not already done so. Look at it close while moving the PTO lever as the arm will move full travel but the shaft is not within it. If this area is OK the next thing to check would be the engagement pressure to the PTO clutch and the brake pressure to the PTO brake. When one is ON the other is OFF and visa versa. If pressure is lower on one over the other it is a sign of an oil leak at the circuit with the lower pressure. If the PTO brake and clutch have the same pressure at the right times (one ON other OFF) but the PTO continues to run the PTO brake has failed, could be due to the PTO clutch burned up and dragging causing the brake to fail or brake is just worn out. To service the PTO brake the tractor has to be split (twice) once between the engine and clutch housing to remove the clutch pack to gain access to the hidden (2) bolts to allow the second split between the clutch housing and transmission where the PTO brake is located. The PTO clutch is serviced during the first split. See what you learn and let us know what you find. Good Luck Dave W.

[Log in to Reply]  [No Email]
rdw5466

10-30-2002 07:32:27




Report to Moderator
 Re: Re: JD 3020 PTO Doesn't Disengage Properly in reply to WTW, 05-01-2002 10:28:04  
I finally got a chance to do a few quick checks on the system. All the linkages are free and have been lubed. The trans clutch has about 130psi when engaged and 0psi when off. The PTO clutch has about 120psi when engaged and 0psi when off.
Based on these initial finding I fear the worst.



[Log in to Reply]  [No Email]
rdw5466

05-02-2002 08:19:07




Report to Moderator
 Re: Re: JD 3020 PTO Doesn't Disengage Properly in reply to WTW, 05-01-2002 10:28:04  
Thanks for the reply. When I check the PTO pressures, am I looking for a particular range or pressure in general?



[Log in to Reply]  [No Email]
[Options]  [Printer Friendly]  [Posting Help]  [Return to Forum]   [Log in to Reply]

Hop to:


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


Copyright © 1997-2023 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