iFahrer - Führerschein Vorbereitung APP
Interactive preparation for the driving license test
Technical aspects / 2.7.07-305
What must you do before detaching a semitrailer?
Lock the wheels of the semitrailer and extend the supporting legs
Disconnect all hose and cable connectors between the truck tractor and semitrailer
Release the coupling lock and open the hitching device of the fifth wheel
Lock the wheels of the semitrailer and extend the supporting legs
Disconnect all hose and cable connectors between the truck tractor and semitrailer
Release the coupling lock and open the hitching device of the fifth wheel
Learn more by downloading app
