Trailer Surge Coupler Can be Pushed in By Hand and Brakes are Weak

Updated 09/10/2015 | Published 09/09/2015

Question:

I have a 2006 Boatmate Trailer with surge brakes. Recently changes were made on the trailer to convert the trailer from a single axle to tandem axle. Only 1 axle has brakes on it so nothing changed from that stand point. The brakes were bleed after the change. It does not feel that the brakes are working properly still when I am towing the trailer. In the instructions that I found on the site it mentioned using the safety chains and a 2x4 to push the coupler in for bleeding the brakes. I can push the coupler in by hand. Also, when I push the coupler in by hand it does not push back out. So basically I have to push it in and then pull it out. Shouldnt the coupler push back out automatically? Im trying to find out if something else is bad.

asked by: Brandon

Expert Reply:

The coupler should be very difficult to push in by hand but it doesn't return on its own. There is likely a problem inside your coupler that will need to be addressed to get it working properly again. It is most likely the shock that is inside. There are replacement shocks but I would need to know the manufacturer and model of the coupler you have.

I have included a link to the shocks we carry. If you can't find a part number or manufacturer on the coupler then you may be able to find a replacement based on appearance and measurements from the shock models we carry.

expert reply by: Michael H