Yesterday's Tractor Co. Shop Now
   Allis Chalmers Case Farmall IH Ford 8N,9N,2N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver
 
Marketplace
Classified Ads
Photo Ads
Tractor Parts

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
Kountry Life
  
Farmall & IHC Tractors Discussion Forum
Show Parts for Model:

SMTA Brakes

Welcome Guest, Log in or Register
Author  [Modern View]
Ellis Kinney

10-12-2018 06:42:33




Report to Moderator

My SMTA has developed the nasty habit of locking the brakes, usually only one side when applied. Needless to say this causes a jerk to one side or the other. I would like to try to fix this. What do I look for? Ellis




[Log in to Reply]   [No Email]
Mark Robke

10-12-2018 17:07:29




Report to Moderator
 Re: SMTA Brakes in reply to Ellis Kinney, 10-12-2018 06:42:33  
Hey Ellis-my 300u did this,and when I took it apart I found the expanders were badly worn and cracked.This caused the ramp/roller balls to hang up,and under a bit more pedal pressure,suddenly the balls move too far in the ramp,and fully apply the brake to the lock up point.Good luck,Mark.



[Log in to Reply]  [No Email]
Janicholson

10-12-2018 09:24:06




Report to Moderator
 Re: SMTA Brakes in reply to Ellis Kinney, 10-12-2018 06:42:33  
An important element in the fix is stack height. Put the housing upside down on the bench using a support that lets the little cap hang free. Place the outer disk, expander (clean and with all springs in place) then the inner disk into the housing so they are nice and centered. Use a straight edge across the housing mating surface. Measure from the straight edge to the friction material of the inner disk. on and M, the maximum space should be .060" or less down to a minimum or .030". To adjust this gap to these numbers, the use of new disks, or machining the housing is needed. Roughing up the friction surfaces (metal and fiber) with 250 grit paper will let them break in when reassembled. Jim

[Log in to Reply]  [No Email]
DeltaRed

10-12-2018 08:12:11




Report to Moderator
 Re: SMTA Brakes in reply to Ellis Kinney, 10-12-2018 06:42:33  
Take them apart and clean. Take the expander apart and inspect the ramps and balls. the balls should be shiny with no pitting or flat spots. the ramps must not have any flat spots as well. Clean/polish the ramps with emery cloth to get them smooth.Dirt and flat spots is what causes them to stick. Clean out the grooves on the disks.Open the outer end of the groove to the edge of the disk.you will need a small grinder or hacksaw to do that.Replace any broken springs.

[Log in to Reply]  [No Email]
DR. EVIL

10-12-2018 10:06:46




Report to Moderator
 Re: SMTA Brakes in reply to DeltaRed, 10-12-2018 08:12:11  
The three big balls to separate the actuator disks are cheap, Buck or two each. Be sitting down when you get the price on the springs. Three per brake, six needed, all six fit in your hand with fingers closed over them, and cost you around $80 total. But they stretch.

Had a brake hanging up on my Stage 2 Super H. New disks, balls, springs, works like new.



[Log in to Reply]  [No Email]
FastFarmall

10-12-2018 06:59:01




Report to Moderator
 Re: SMTA Brakes in reply to Ellis Kinney, 10-12-2018 06:42:33  
They need to be cleaned,that expander especially put it on a wire brush,make sure those balls are round and run in the track, check and see if you need any new parts, then you need to put some graphite powder for a lubricant, it the same lubricant we use to use, for corn seed, in the old style corn planters !! Dont use oil in there!



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

Hop to:


TRACTOR PARTS TRACTOR MANUALS
Fast Shipping!  Most of our stocked parts ship within 24 hours (M-Th). 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. [ About Us ]

Home  |  Forums


Copyright © 1997-2018 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