Safety Regulations For Working On Roll Bar

The roll bar (1) is extended by a tensioner spring (5) by a control module, which actuates a triggering solenoid (Y57/1), see Fig 1 , which opens a lock according to the following criteria:

1. • Vehicle inclination more than 22 degrees and at least one rear axle switch open (rear suspension completely extended).
   • Recognition of acceleration greater than 0.4 g ¹ ).

Fig 1: Identifying Action Of Roll Bar During Deployment

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.