It's good, but the vehicle still can't complete steering. It is likely that the steering oil pump is faulty. At this point, the steering oil pump needs to be repaired or replaced. Before this operation, it is necessary to disassemble the steering oil pump and understand its more detailed structure for maintenance or replacement. Steering oil pump is the power source of power steering device. Its function is to convert the mechanical energy of the engine into hydraulic energy to drive the steering cylinder to work, so as to output controlled steering force and drive the steering wheel to realize steering. There are three types of steering pumps: gear steering pump, vane steering pump and rotor steering pump. Double-acting vane steering oil pump is the most commonly used steering oil pump at present. Its structure is mainly composed of rotor, stator, oil distribution plate, shell, transmission shaft and combined valve. There are ten radial blade grooves on the rotor, and the blades are installed in the grooves, and the tips of the blades are close to the inner surface of the stator. The oil distribution plate is pressed on the stator to form a sealed working chamber. With the rotation of the rotor, these studios will "change from small to large, from large to small, then from small to large, from large to small" to complete the process of oil absorption, compression and oil discharge. The steering oil pump is also equipped with an overflow valve and a safety valve to limit the output flow and pressure and ensure the normal operation of the steering oil pump. When using the steering oil pump, check the condition of the belt regularly, and pay attention to whether the oil flow and pressure output by the steering oil pump are normal. If there is a problem, it is necessary to repair or replace the steering oil pump in time. Before disassembling the steering oil pump, it is necessary to know its structure and working principle in detail to ensure the correctness of maintenance operation.