Piston hydraulic cylinder is a common type of hydraulic actuator used in dump trucks to raise and lower the dump body. The cylinder consists of a piston and cylinder barrel assembly, with hydraulic fluid on one side of the piston and pressurized oil on the other side. When the hydraulic pump is engaged, pressurized oil is forced into the cylinder barrel, causing the piston to move and extend the hydraulic cylinder. This, in turn, raises the dump body and allows it to discharge its contents. To lower the dump body, the hydraulic control valve is adjusted to release the pressurized oil from the cylinder, allowing the weight of the dump body to push the hydraulic fluid back into the reservoir. The piston then retracts, and the dump body is lowered to its original position. Piston hydraulic cylinders are commonly used in dump trucks due to their high force output and ability to handle heavy loads. They are also known for their durability and resistance to wear and tear, making them id…