Bad configuration, 6x2 doesn't work there, those trucks have to be 6x4, they should also use reducing hubs, they would avoid many problems, not to mention using trucks with 500hp or more and not trucks with less than 400hp as those engines are designed for half of weight.
Tank trailers carry more weight, but Scania P and Volvo FM are light-duty trucks. They are not suitable for such loads. Also look at the front tire width at 9:55. It is very small. Trucking companies should have a good understanding of cargo handling with suitable trucks. 🤔🤔🤔
The problem is that the trailers are too heavy compared to the performance of the trucks. Volvo FM, and Volvo FH 440 are light duty trucks. Not all trucks in this video are suitable for this weight, not just the Volvo. At least a 540HP engine is needed to load that much.
Per fare questo lavoro in salita in italia enni 60 / 70 ,si usavano solo autotreni , 4assi la motrice piu il rimorchio a 4 assi anche con soli 209 cavalli andavano su in qualsiasi salita,con un solo asse motore , no mai autoarticolato le ruote davanti per il grande peso gravante solo sulla Ralla non toccano terra galleggiano .