then the ticket is completely pointlessNo you merely drive up to side of lorry. Engage handbrake. Lift up boom to required height. Release handbrake and drive forward 1-2 m. Then apply handbrake and then operate boom. The idea is you don’t operate the hydraulics while moving. It sort of makes sense. In reality we don’t drive like that. Similar to very few of any of us drive like we do to pass our driving test for a car everyday