Can the pump truck be erected on the backfill soil?

You can't. The pump truck is erected on the backfill soil with small bearing capacity, and improper measures to disperse the leg pressure will lead to the tilt of the pump truck. The backfill site needs to be cautious. It looks like a solid surface, but in fact, the underground is very soft and the pump truck cannot be erected on the backfill. As the skeleton of the pump truck chassis, the frame of the pump truck is an important factor to determine the bearing capacity of the chassis. Chassis longitudinal beam is usually a C-shaped structure with one or more layers of high-strength steel plates bent and nested together, which requires high strength and enough flexibility to cope with rugged and complicated working conditions.