Reply
 
Thread Tools Search this Thread Display Modes
 
Old 06-05-2005, 11:16 AM   #1
New Member
 
Kstar's Avatar
 
Join Date: Apr 2004
Posts: 4
Brake Drum Replacement

Two years ago I spent a lot of money having my brake drums and faces turned. I replace the magnets on all four brake assemblies. The brake pads I had replaced the year before. After spending all this money my brakes don't function much different. One or more tires will lock up when coming to a stop, ect... Also, they don't seem to work as well as I would think they should. If I completely slam on my brakes with the controller maxed out the tires won't even lock up. I was wondering after all the money I spent on repairs wouldn't a person have been money ahead just replacing the whole brake drum? The drum assembly comes with a brand new brake assembly including magnets, brake pads, springs, ect...
__________________

__________________
Kstar is offline   Reply With Quote
Old 06-05-2005, 11:58 AM   #2
Rivet Master
 
Janets Husband's Avatar
 
1977 Argosy Minuet 6.0 Metre
1964 26' Overlander
1977 25' Tradewind
Eastern , Washington
Join Date: Jan 2004
Posts: 865
Images: 6
Quote:
Originally Posted by Kstar
Two years ago I spent a lot of money having my brake drums and faces turned. I replace the magnets on all four brake assemblies. The brake pads I had replaced the year before. After spending all this money my brakes don't function much different. One or more tires will lock up when coming to a stop, ect... Also, they don't seem to work as well as I would think they should. If I completely slam on my brakes with the controller maxed out the tires won't even lock up. I was wondering after all the money I spent on repairs wouldn't a person have been money ahead just replacing the whole brake drum? The drum assembly comes with a brand new brake assembly including magnets, brake pads, springs, ect...

If everything was done properly, and all parts are still in good condition you probably only need to manually adjust the brakes. It is really tough to get all wheels set at the same shoe clearances. With this done all brakes will work.
Lock up the tires is probably due to adjustment.
As for replaceing the drums and backing plates, I feel you are always money ahead by doing a whole sale replacement if you are working with a trailer that is 20 years old or more. That is just my personal opinion, of course you want to weigh condition against age. I have seen it where the sum of the piece parts were more than buying the whole assembly.
__________________

__________________
Peace
Gary
Janets Husband is offline   Reply With Quote
Old 06-05-2005, 03:45 PM   #3
Rivet Master
 
1994 30' Excella
Mississauga , Ontario
Join Date: Jun 2004
Posts: 939
Kstar,
I am going through the same thought process. Same as Tarheel,
Mine is a '94 that I bought last spring. Assumed that everything was ok, since the previous owner only had it one year and bought it from a reputable AS dealer. When I took the wheels off to repack bearings and adjust brakes I also found one wheel with the brake adjuster broken and it had been rolling around in the drum.
Therefore that brake hadn't been doing any good.
Brake shoes still have some life in them but it is obvious that the brakes are original so next time around I am buying new brake assemblies(complete) and new hub\brake drums.
Much cheaper than individual parts and then I will be sure of what I have under the trailer.
check out low cost trailer supplies on line.
they have competitive prices.
Al
__________________
BigAl is offline   Reply With Quote
Old 06-05-2005, 03:51 PM   #4
Rivet Master
Airstream Dealer
 
Inland RV Center, In's Avatar
 
Corona , California
Join Date: Feb 2002
Posts: 16,499
Images: 1
Kstar.

Old brake controllers somtimes no longer apply maximum voltage to the electric brakes.

12 volt electric brakes are designed to "lock up" if they are perfectly adjusted, at 8 volts on the magnets.

Adjusting electric brakes is rather simple, but most of the time, owners don't do it.

The adjuster should be tightened until you cannot pull the tire through with two fingers, not all five fingers. Then you back off the adjustment 3 to 4 notches. That adjustment procedure works very well, unless, there is another problem.

You can also measure the voltage at each brake magnet, by having someone hold the controller at maximum.

CAUTION] DO NOT MAKE THIS TEST BY PULLING THE BREAKAWAY SWITCH.

If the drum surface is true, then an old drum should work as well as a new one.

Most often, we find a problem with the controller, the connectors or the wiring, both within the tow vehicle as well as the trailer. Each electrical connection should be confirm, not assumed.

Andy
__________________
Inland RV Center, In is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



Virginia Campgrounds

Reviews provided by




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 07:13 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.

Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.