Welcome! Please use the navigational links to explore our website.
PartsASAP LogoCompany Logo Auction Link (800) 853-2651

Shop Now

   Allis Chalmers Case Farmall IH Ford 8N,9N,2N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver

Crawlers, Dozers, Loaders & Backhoes Discussion Forum

450C steering clutch

Welcome Guest, Log in or Register
Author 
drk

12-14-2005 16:39:04




Report to Moderator

Still have the problem with shifting from neutral to forward or reverse to fast, but I also have another problem. I had a local mechanic put in new steering clutches also had to replace the clutch housing and piston.The fitting that connects the steering clutch pressure oil line to the clutch pressure ring has sheared off twice. Any ideas as to why the fitting would shear off. It has only happened or the right side.

[Log in to Reply]   [No Email]
Jonathan in MA

12-14-2005 17:42:20




Report to Moderator
 Re: 450C steering clutch in reply to drk, 12-14-2005 16:39:04  
there should be a bolt protruding from the steering clutch manifold (that part that the fitting elbow screws into) it keeps the clutch assembly from travelling inward toward the center of the machine and wearing thru that hose. It may also have a bolt screwed in diagonally and viewable thru that 1 inch pipe plug located just above the sprocket recessed diagonally in the side of the steering clutch housing. This bolt engages a slot cut into the splines on the shaft that goes thru the steering clutch assembly. Without a parts diagram in front of me . I forget if a 450C has one or both of these items installed. Without them , the steering clutch assembly can wander side to side on the shaft and damage the hose that feeds it. As far as the shifting issue... did this occur suddenly or is this machine new to you and has been like that right along ??

[Log in to Reply]  [No Email]
drk

12-15-2005 10:01:50




Report to Moderator
 Re: 450C steering clutch in reply to Jonathan in MA, 12-14-2005 17:42:20  
It started slowly and has gotten bad.The steering clutch pistons were leaking bad and was having trouble getting enough pressure to lock the clutches. Had new clutches and new clutch pistons and clutch piston housings installed. Have removed and cleaned the accumulator and screen. Put it all back together adjusted it according to the book.It still shifted to fast. The only thing I found that would not adjust like the book said was the pressure was supposed to rise about 5 psi when the clutch was depressed one half inch.The pressure on mine went down.

[Log in to Reply]  [No Email]
drk

12-16-2005 15:56:20




Report to Moderator
 Re: 450C steering clutch in reply to drk, 12-15-2005 10:01:50  
The steering clutch problem was the tapered bolt that you access through the 1 inch plug that is above the sprocket. The speed of shift is still a problem. I adjust every thing according to the technical manual. I get the pressure up to 165 psi until it just starts to drop off. At this time if you push in the clutch one half inch the pressure is supposed to increase 5 psi. The pressure drops. Also if I adjust the needle valve that is supposed to change the shift time it does nothing. Even if I screw it all the way in.I have removed the accumulator replaced the screen checked the orfice. If anyone knows what else it could be please let me know. Thanks

[Log in to Reply]  [No Email]
Roy Suomi

12-16-2005 21:43:57




Report to Moderator
 Re: 450C steering clutch in reply to drk, 12-16-2005 15:56:20  
I wonder if the sealing rings are leaking across each other causing this problem you have with the speed of shift. These rings are on the main shaft on the rear side that seal the shaft to the manifold. One thing it might do to tell you there is a problem is; When you shift the HLR transmission [ with the 4 speed in neutral between 3rd and 4th gear]. Does the engine pull down in one range more than any other. This would indicate leakage causing 2 clutches applying at the same time. Reverse will pull down at first then come back to normal speed. Watch the tachometer for a difference in rpm.All ranges should be equal rpm. I can't think of anything else that would cause the problem you have...

[Log in to Reply]  [No Email]
drk

12-17-2005 16:14:59




Report to Moderator
 Re: 450C steering clutch in reply to Roy Suomi, 12-16-2005 21:43:57  
The rpm drops the same amount when you shift to reverse or to high. The shift is very fast. I was wondering if the check valve or some orfice in the clutch oil manifold could be plugged. It does not have the one and one half second slow surge then the full pressure that it is supposed to have. It seems to be getting the full pressure as soon as you go to foward or reverse.Screwing in the needle valve has no effect on the speed of shift. The farther you screw in the valve the more sluggesh it is supposed to get, but this does not happen.

[Log in to Reply]  [No Email]
Roy Suomi

12-17-2005 19:20:27




Report to Moderator
 Re: 450C steering clutch in reply to drk, 12-17-2005 16:14:59  
I've done a lot of HLR transmissions, but never seen one doing what yours is doing . Everyone I've done you could slow down the shift with the side adjustment. I'm afraid I would do a tear down just to see whats going on inside there.Sorry , I'm out of ideas... R.S.



[Log in to Reply]  [No Email]
drk

12-18-2005 16:12:16




Report to Moderator
 Re: 450C steering clutch in reply to Roy Suomi, 12-17-2005 19:20:27  
I took the top off the transmission for the 3rd. time. Removed the accumulator again and am going to remove the shift valve ,the check valve ,clutch control valve ,gasket and passages as much as I can.It has to be something that is blocked that is causing the rapid shift.It is not getting the initial low pressure before the high pressure. Thanks for your help. When and if I figure it all out I'll let you know what it was.

[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