tmcassett:
If a job requires you to do other stuff besides drive and they state that such as this job in the OP, where’s the issue? It isn’t your divine right as an HGV licence holder that you solely sit behind the wheel for 9-10 hours a day and do nothing else.
The most fondly remembered time of my working career will always be doing roadshow work, when I would typically drive one day a week and spend the rest of the time maintaining the generator, cleaning the trailer including mopping the floors, handing out leaflets and freebies, serving drinks to clients and a million-and-one other things which didn’t involve driving a truck.