A hydraulic lift consists of a walking mechanism, hydraulic system, electric control unit, and support structure, allowing for lifting and lowering. The hydraulic oil, generated by a vane pump, applies pressure and passes through a filter, explosion-proof solenoid reversing valve, throttle valve, hydraulic check valve, and balance valve to the bottom of the cylinder, causing the cylinder's piston to move upwards, lifting heavy loads. The returned oil from the top of the cylinder goes back to the tank via the explosion-proof solenoid reversing valve. The rated pressure is adjusted through an overflow valve, and the pressure reading is observed via a pressure gauge.