Thread Tools Search this Thread Display Modes
Old 07-06-2015, 03:07 PM   #1
Join Date: Jul 2015
Posts: 1
Default Trailer with surge brakes

I have a maxum trailer that has surge brakes. Not sure if it is working right. When I am pulling the trailer (with boat on it) and I come to stop, the trailer jerks when I take off. It seems like the trailer slides forward to engage the trailer brakes, but does not go back until I take off. Is this the way the surge brakes work?

Can anyone help?

Dale-Findlay is offline   Reply With Quote
Old 07-06-2015, 04:01 PM   #2
mmwjr's Avatar
Join Date: Feb 2012
Location: Perry Hall, Maryland
Posts: 5,631

Welcome aboard.

If you are on a downward slope it will behave as you described as gravity will keep pressure on the surge master cylinder otherwise should be smooth.

First thing I would do is inspect the brakes themselves as they can get rusty and freeze. Then verify the master cylinder is releasing pressure when sitting on level ground.

FYI when backing up the brakes will lock and there should be a pin to insert on the master cylinder to lockout the brakes.

mmwjr is offline   Reply With Quote
Old 07-07-2015, 12:19 AM   #3
Kevlar7r's Avatar
Join Date: Aug 2014
Location: Jacksonville, FL
Posts: 746

Not all surge brakes have a pin or lever to lock out. Especially older ones.

There is no spring to push the master cylinder forward and release the brakes, so what you are describing sounds pretty normal, but perhaps sticky and in need of lubrication.
Kevlar7r is offline   Reply With Quote
Old 08-12-2016, 05:26 PM   #4
Join Date: Aug 2016
Posts: 4

I have surge brakes as well and no "pin". It sounds like air in the system may be an issue. Try bleeding the brakes after you check for rust and sticking.
gbalzer is offline   Reply With Quote
Old 08-12-2016, 06:32 PM   #5
Phillbo's Avatar
Join Date: Mar 2012
Location: Arizona
Posts: 885

Every surge brake trailer I have owned has done that. I just ease off the brakes and let it clunk before accelerating.
Phillbo is offline   Reply With Quote
Old 08-12-2016, 08:38 PM   #6
Casey's Avatar
Join Date: Jun 2015
Location: Las Vegas NV
Posts: 13

That is the nature of surge brakes. You can minimize the movement and cluncking by making sure all the air is bleed from the system and the brakes are adjusted correctly.

Casey is offline   Reply With Quote

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

Powered by vBadvanced CMPS v3.2.3

All times are GMT. The time now is 04:18 AM.

Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2018, vBulletin Solutions, Inc.