(800) 853-2651
SHOP NOW

8N Brake issue

B

Brian Jasper co. Ia

Well-known Member
I have a 52 8N that the left brake will come on by itself and drag. The shoes are new, axle seals are new, the axle bearings have the correct preload. The drums were resurfaced and I added a pedal return spring. I've set them tight and loose but the left side will still come on by itself driving forward. The only thing that helped a little bit is the added return spring to the pedal. At this point the only thing I can come up with is maybe the brake material's coefficient of friction isn't quite right for this application. What am I missing here?
 
Brian,Are the brake shafts loose and turn free through the bushings and oiled up good where they go through and in to?Are the stronger springs on the left side?Are the springs new?
 
(quoted from post at 20:42:06 10/06/15) I have a 52 8N that the left brake will come on by itself and drag. The shoes are new, axle seals are new, the axle bearings have the correct preload. The drums were resurfaced and I added a pedal return spring. I've set them tight and loose but the left side will still come on by itself driving forward. The only thing that helped a little bit is the added return spring to the pedal. At this point the only thing I can come up with is maybe the brake material's coefficient of friction isn't quite right for this application. What am I missing here?
Click to expand...

Its a mechanical set up if a shoe is dragging in either up are down pedal position the brakes will apply...

In other words the shoes could care less in the direction they are applied... I doubt its the lining material I would wager the actuator is not centering back to the neutral position are something about the shoe is hanging on the actuator...

BTW I use the extra spring on both sides and always use new hardware... You can touch the drum up on a lath but don't go for the kill trying to make them perfect...
 
Any chance someone could post a pic of the correct springs installed? I installed all new springs when the new shoes went in. Without pulling the drum back off, I remember there being a spring holding the shoes together around the adjuster, another holding them together at the cam end and one large spring from the upper shoe to the cam support. I didn't have any left over new springs, but I guess that doesn't mean the kit was missing one. The shafts turn freely.
 
(quoted from post at 11:27:52 10/07/15) Any chance someone could post a pic of the correct springs installed? I installed all new springs when the new shoes went in. Without pulling the drum back off, I remember there being a spring holding the shoes together around the adjuster, another holding them together at the cam end and one large spring from the upper shoe to the cam support. I didn't have any left over new springs, but I guess that doesn't mean the kit was missing one. The shafts turn freely.
Click to expand...

I don't mean to kick a guy when he's down but taking a picture of the whole thing before disassembling can be a big help no matter what you're working on. I hope you get it figured out.
 
(quoted from post at 00:27:52 10/08/15) Any chance someone could post a pic of the correct springs installed? I installed all new springs when the new shoes went in. Without pulling the drum back off, I remember there being a spring holding the shoes together around the adjuster, another holding them together at the cam end and one large spring from the upper shoe to the cam support. I didn't have any left over new springs, but I guess that doesn't mean the kit was missing one. The shafts turn freely.
Click to expand...

https://photos.yesterdaystractors.c...arameter=hobo,nc&w=pieces&cc=0&s=

http://forums.yesterdaystractors.com/viewtopic.php?t=1242872&highlight=brake
 
You must log in or register to reply here.

Similar threads

M
8n Brakes
Replies
8
Views
493
Hobo,NC
Hobo,NC
That_guy
Need help with 8N Brake pedal alignment
Replies
2
Views
259
That_guy
That_guy
C
MF202 brake problem
Replies
11
Views
432
Caryc
C
R
Removing rusted-on brake drums -- ideas?
Replies
19
Views
1K
rossow (mn)
R
M
8N Left Brake Self Engaging (May have found problem)
Replies
5
Views
808
Midwayman
M
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.

Copyright © 1997-2024 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

Back
Top