brakes are pretty easy. master cyl., lines, caliper. when you apply rod pushes in and closes and opens different ports, which applies pressure to make the caliper pistons push out and apply braking, when you release the pressure goes away and brake relax. If your brakes are not releasing in most cases it is in the calipers, If you remove you should be able to push back without to must effort. If you want to call I can give you more info. not to good of a typer. Bruce 717-382-9983 it in PA.