Reply
 
Thread Tools Search this Thread Display Modes
 
Old 09-13-2002, 02:40 PM   #1
4 Rivet Member
 
Join Date: Jun 2002
Posts: 304
Images: 7
Brakes working correctly?

Just installed a brake box on the truck and am checking the brakes on our 1971 Safari. When I activate the the brake manual control, the two rear brakes on the trailer seem to be the only ones to engage. When I use the brake pedal on the truck, the truck and trailer stops like it should. Is the correct? Also, how do I determine if all the brakes on the trailer are engaging?
Dan
__________________

__________________
Dbraw is offline   Reply With Quote
Old 10-30-2006, 10:29 AM   #2
2 Rivet Member
 
kaffe_1477's Avatar
 
1963 16' Bambi
Metairie , Louisiana
Join Date: Jun 2006
Posts: 52
Images: 1
Jack it up

Jack up the triler...so that all of the wheels are off the ground. have someone mash the break peddle then try to turn the wheels by hand. You should not be able to.
__________________

__________________
kaffe_1477 is offline   Reply With Quote
Old 10-30-2006, 12:14 PM   #3
Well Preserved

 
1993 21' Sovereign
Colfax , North Carolina
Join Date: Jun 2003
Posts: 20,191
Uhh, not quite...

Quote:
Originally Posted by kaffe_1477
Jack up the triler...so that all of the wheels are off the ground. have someone mash the break peddle then try to turn the wheels by hand. You should not be able to.
The brakes on the trailer should be electric drum, and any brake pedal application of the truck's brakes while at rest will have no effect.. You can check operation of the brakes by jacking up the trailer, one side at a time, and apply the trailer brake controller, and see if you can spin both tires. If both can't be moved, the brakes are working, if one doesn't work, you probably have a bda magnet or a bad wire or connector going to the magnet. You can check magnets without jacking, by applying the trailer brakes, and holding a cheap compass near the wheels. If the compass points at the wheel, the magnet is good.
__________________
Meddle not in the affairs of dragons, for you are crunchy, and taste good with ketchup.
Terry
overlander63 is offline   Reply With Quote
Old 10-30-2006, 01:38 PM   #4
Rivet Master
 
Excella CM's Avatar
 
1978 31' Excella 500
Venice , California
Join Date: May 2006
Posts: 1,061
Yes, that is correct. The controller manual brake lever supplies power to the trailer brakes via an electrical signal. The truck brakes are not activated by the controller. If only one brake is working on the trailer, it will cause the truck to veer in the opposite direction when the hand lever is applied. The trailer brakes need to be in proper adjustment to stop evenly as well. From your description it sounds as if the brakes are OK.
__________________
"Not all who are laundering are washed" say Bill & Heidi

'78 Excella 500,"The Silver Pullit". vacuum over hydraulic disc brakes, center bath, rear twin. '67 Travelall 1200 B 4X4 WBCCI 3737
Excella CM is offline   Reply With Quote
Old 11-08-2006, 02:47 PM   #5
2 Rivet Member
 
kaffe_1477's Avatar
 
1963 16' Bambi
Metairie , Louisiana
Join Date: Jun 2006
Posts: 52
Images: 1
Quote:
Originally Posted by overlander63
The brakes on the trailer should be electric drum, and any brake pedal application of the truck's brakes while at rest will have no effect.. You can check operation of the brakes by jacking up the trailer, one side at a time, and apply the trailer brake controller, and see if you can spin both tires. If both can't be moved, the brakes are working, if one doesn't work, you probably have a bda magnet or a bad wire or connector going to the magnet. You can check magnets without jacking, by applying the trailer brakes, and holding a cheap compass near the wheels. If the compass points at the wheel, the magnet is good.
Sorry about that...I guess I am a little confused about how it all works. Doesn't the brake controller send the voltage to the drums when the break peddle is pressed and depending on the preset level you can adjust the amount of voltage that regulates the braking force of the trailer?
__________________
kaffe_1477 is offline   Reply With Quote
Old 11-08-2006, 08:59 PM   #6
Rivet Master
 
1960 24' Tradewind
santa barbara , California
Join Date: Apr 2006
Posts: 1,352
Yes it does do just that . you apply your brakes and the controller sends the voltage signal to the trailers brakes ,as does the manual lever as well .the manual lever at full movement applies full voltage to the trailer brakes.If I
step on the brakes in my TV at the stop light ,the trailer brakes do indeed have voltage applied to them ,as you can read on the prodigy display .If im pulling into a gas station at almost creep speed ,the trailer brakes drag on the Tv and the prodigy shows voltage is applied also ,it is a low voltage .
when I tested my brake magnets for the hum ,I just applied the travelalls
brake pedal ,Ive never used the manual lever .not once so far ,haven't needed to .so I don't no if the controllers you all are using are working right
or what ,im not sure .

Scott
__________________
scottanlily is offline   Reply With Quote
Old 11-08-2006, 09:03 PM   #7
INSANITY CENTRAL
 
doorgunner's Avatar
 
1986 32' Excella
2014 Interstate Ext. Coach
Citrus Heights , California
Join Date: Aug 2006
Posts: 2,105
Images: 35
Hi Scott Still dealin on the duramax wreck!
__________________


www.popasmoke.com




Proud Appellation American





Vine View Heights is now closed.

YETI ( 65 Quart )

IGLOO (Ice Cube, 50 Quart )
doorgunner is offline   Reply With Quote
Old 11-08-2006, 09:09 PM   #8
Rivet Master
 
1960 24' Tradewind
santa barbara , California
Join Date: Apr 2006
Posts: 1,352
hello Tim ,how are you doing ? Well did you get the wreck or what ? I like the sound of the project so far ,I think itll turn the Sub into a torque monster.
A customer of mine has a 96 with the 6.5 turbo in it factory with 4 wheel drive and he just loves it .Its a rare one as most Suburbans came with the
big block or the 5.7 .

Scott
__________________
scottanlily is offline   Reply With Quote
Old 02-27-2007, 08:16 AM   #9
1 Rivet Member
 
Join Date: Dec 2004
Posts: 16
Another method of testing if brakes are actuating is to get a cheap compass. Have someone engage the brakes and hold the compass near the drum. If it is getting power, the drum magnet will make the compass needle swing toward it. That's a quick way to check without getting out the ampmeter or jacking it up.....Try this first and then go to other methods if needed.
Ken... 76 sovereign. Alabaster, Alabama. krwrite@yahoo.com
__________________

__________________
krwrite 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


Similar Threads
Thread Thread Starter Forum Replies Last Post
What is your Brake Controller of Choice? overlander64 Brakes & Brake Controllers 71 11-29-2008 09:40 AM
Some towing Q & A for newbies femuse Towing, Tow Vehicles & Hitches 3 08-24-2004 09:05 AM
Intermittant Brakes dinoburb Brakes & Brake Controllers 4 11-12-2003 09:00 AM
Trailer brakes won't lock-up? John Brakes & Brake Controllers 24 02-06-2003 01:22 PM
problem with Brakes jazzbone Brakes & Brake Controllers 33 08-23-2002 08:05 AM


Virginia Campgrounds

Reviews provided by




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 07:08 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.