Durable power steering pump

　　Product Model: FZB30A27A
　　Product Brand: FZB
　　Product Origin: China

Heavy Guidance
　　1. Fault Symptoms. Vehicles equipped with power steering should be very light, but feel difficult and heavy to steer during driving.
　　2. Fault Causes. The oil reservoir is low on oil or the oil level is below the specified requirement; poor sealing at various oil pipe joints, leading to leaks; air has entered the steering hydraulic circuit; deformed or blocked oil pipes; insufficient tension in the power steering pump drive belt, causing slippage; severe internal wear or leakage in the power steering pump, resulting in substandard oil pump output pressure; failure of the pressure regulating valve inside the power steering pump, leading to low output pressure; internal leakage in the steering control valve or power cylinder; damage or improper adjustment of the mechanical steering system.
　　3. Fault Diagnosis. When heavy steering occurs, the following methods can be used for diagnosis:
　　(a) Check if the tire pressure is normal and inflate to the specified pressure.
　　(b) Check for leaks at the joints of the steering hydraulic system, and inspect the oil pipes for damage, deformation, or cracking. If defects are found in the oil pipes, they should be replaced in a timely manner; if there are leaks at the oil pipe joints, they should be tightened, and if necessary, the oil pipes should be replaced and reconnected.
　　(c) Check the tension of the power steering pump drive belt to see if it is slipping or damaged. If problems are found, adjust the tension of the drive belt or replace it with a new one as specified.
　　(d) Measure the output oil pressure of the power steering pump to identify the faulty component. Before testing, connect a pressure gauge (with a valve) that matches the specified oil pressure between the pressure output port of the power steering pump and the pressure input pipe of the steering control valve. During the test, open the pressure gauge valve fully, start the engine at idle, and turn the steering wheel to the left or right limit to measure the output oil pressure of the steering pump. If the oil pressure does not reach the factory specified pressure, and the oil pressure does not rise when gradually closing the pressure gauge valve, it indicates a fault in the power steering pump; if the oil pressure does not reach the factory specified value, but there is a rising trend in oil pressure when the pressure gauge valve is gradually closed, and the oil pressure can reach the specified value, it indicates that the power steering pump is in good condition, and the fault lies in the steering control valve or power cylinder; if the oil pressure is normal during the test, the fault lies in the mechanical steering system.
　　(e) Check the mechanical steering system. Rotate the steering wheel and check if the components related to the steering column shaft rotate smoothly; check if the steering universal joints and ball joint connections of each drive rod are too tight; check if the thrust bearing of the steering joint is low on oil or damaged. If problems are found, adjust or replace and reinstall; if all the above checks are normal, the fault lies in the steering gear. Check the gear rack steering gear, adjust the clamping force of the rack top block to ensure that the lateral gap between the rack and the gear is appropriate, allowing the rack to move freely. Replace any bent frames.