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
:

How does the seals on the pto shaft keep power trol from getting into the gearbox

Welcome Guest, Log in or Register
Author 
charlie

11-11-2002 15:59:11




Report to Moderator

I took the PTO oil pump apart because I want to replace the oil seals so that I do not leak power trol oil into my gearbox. My question is how does the oil seals actually work to seal this oil?

The reason I ask this is because I took all the seals off the PTO shaft and there seems to be one bearing at the very back of the housing and it seems that it is pressed into the back of the housing where the pto shaft goes through this bearing into the gearbox. The pto shaft fits very loosely and I can't see how it will stop oil from flowing into the grearbox or from the gearbox into the cavity behind the pump assembly.

When I put on the new seals there is a spring that presses these seals into a cup, and then presses this whole group against the bearing in the back of the cavity behind the pump. My question is , does the spring cause pressure against the seal so that oil will not flow? Is it correct that gear oil fill the cavity behind the pump and the seals only keep oil from leaking out of the pump into ythis cavity?

[Log in to Reply]   [No Email]
Clooney

11-11-2002 16:43:50




Report to Moderator
 Re: How does the seals on the pto shaft keep power trol from getting into the gearbox in reply to charlie, 11-11-2002 15:59:11  
Charlie, the seal on the PTO pump works like a water pump seal or old style Delco A/C compressor seal. The spring pushes a packing type material into the space between the shaft & cup & the cup seals on a bearing type cone that rides on the housing. The higher the pump pressure the better it seals. There is gear oil on the front side of the rear housing & the pump [power-trol oil] is on the back with the seal between them.

[Log in to Reply]  [No Email]
ron in MN

11-11-2002 19:03:18




Report to Moderator
 Re: Re: How does the seals on the pto shaft keep power trol from getting into the gearbox in reply to Clooney, 11-11-2002 16:43:50  
Which tractors are you guys talking about? I wasn't aware that PTO shaft seals have anything to do with Powr-trol oil. On my 50 the two never meet.



[Log in to Reply]  [No Email]
G-MAN

11-12-2002 10:20:38




Report to Moderator
 Re: Re: Re: How does the seals on the pto shaft keep power trol from getting into the gearbox in reply to ron in MN, 11-11-2002 19:03:18  
Ron, on the older power-trol and power-lift systems, the pump is driven by the PTO shaft, and the gears are located in a housing directly in front of where the PTO shaft comes out of the housing. The PTO shaft actually runs through the drive gear, and there is another gear of equal size that makes up the rest of the gear pump. There is power-trol oil in the gear housing and gear lube in the rear end, so if the seal leaks, you can transfer power-trol oil into the rear end. The power-trol pump on your "50" is driven off the end of the engine governor, so this situation isn't going to apply to your tractor.

[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