Brake release

Truck tractor:

To release blocked brakes on Volvo FH, unscrew hexagon-head bolts on the front and rear axles.

MB Actros: to release brakes, unscrew hexagon-head bolts on rear wheels only.

Semii-trailers:

SCHMITZ, KOGEL

Brakes are only blocked on the second and third axles as viewed in the direction of travel.

There are two ways to forcedly disable brakes on one of the axles.

First way: fully remove the spring brake cylinder and leave it hanging together with tubes by tying it to the frame; unscrew 2 M24 bolts.

Second way: screw out the service bolt located on the spring brake cylinder’s body, take out the rubber plug and insert the bolt in its place, rotate it until fixed and then rotate the lock nut itself, so that the bolt gradually releases the spring in the spring brake cylinder.