How to Manually Release Locked Up Disc Brakes

Published 08/23/2019

Question:

How do you manually release disc brakes? The disc brakes on my rear dual axle trailer are frozen in place. I cant get the boat and trailer 2A repair shop if I cant release the brakes. Please help.

asked by: Paul M

Expert Reply:

Your best bet is to start by opening up the line connection to release some fluid pressure. If one of your lines collapsed it potentially caused it to hold pressure to that axle alone. It's not too likely but worth ruling out. If that's the case, just opening up the bleeders at the caliper will let it retract.

If your calipers are actually frozen (rusted or corroded) with the pistons in place the next best solution is to take the disc brake assembly apart. I have included a disc brake installation video to help you understand the removal process. With extremely corroded calipers it's likely the job will require a large hammer to get them off.

Otherwise, the only other solution is to load it up onto a lowboy/flatbed to be taken to repair shop.

expert reply by: Carla M