Advantages of hydraulic power steering system: Provides stable and powerful steering assistance Sensitive feedback and precise control Strong adaptability, suitable for a variety of vehicles High stability and reliability Relatively low cost Disadvantages of hydraulic power steering system: Low fuel efficiency Large volume and increased weight Complex maintenance and many vulnerable parts Inferior control feel to mechanical steering High noise

Hydraulic power steering racks can significantly improve the controllability of trucks and reduce the labor intensity of drivers. For large trucks that are driven for a long time, hydraulic power steering racks make it easier to operate the steering wheel and avoid fatigue caused by long-term steering burdens.

The operation between the rack and the pinion depends on adequate lubrication. When the power steering fluid is exhausted, this lubrication function fails, resulting in excessive friction between metal parts and abnormal wear. The gear portion of the rack will be damaged due to direct contact, and eventually the steering rack will fail.

Mineral oil hydraulic oil is the most common type of hydraulic oil, which is mainly processed from oil-based oil products extracted from crude oil. They usually contain additives to enhance the anti-oxidation, anti-corrosion, anti-foaming and other properties of hydraulic oil.

if it is only a small leak, the vehicle can still be driven for a short distance, but it needs to be checked and the hydraulic oil added frequently. However, if the oil leak is serious and the hydraulic oil is lost quickly, the vehicle may lose the power-assist function in a short time, and continuing to drive at this time will bring great risks.

The cost of replacing the steering rack varies depending on the model. For Mercedes-Benz models, the cost of replacing the steering rack is generally between $1,000 and $2,500. This cost includes the cost of parts and labor.

The work of the electric power steering system begins with the steering force sensor (Torque Sensor). When the driver turns the steering wheel, the sensor monitors the rotational torque on the steering wheel in real time. This information is transmitted to the vehicle's electronic control unit (ECU), and the ECU determines how much steering assistance is needed based on this information.

Steps for calibrating the power steering rack 1. Lift the front of the vehicle 2. Loosen the steering rack connection components 3. Adjust the steering wheel position 4. Measure and adjust the rack position 5. Tighten the rack connection components 6. Check and calibrate the steering wheel position 7. Test the steering system

"Do I need to align the steering rack and tie rod after replacing it?" The answer is yes, in other words, after replacing these parts, the geometric relationship between the vehicle's tires, suspension system and steering system must be recalibrated to ensure the safety, stability and driving experience of the vehicle.

The hydraulic power steering rack and the four-wheel alignment seem to be two independent systems, but their working conditions are closely related. Although the hydraulic power steering rack mainly affects the steering ability of the vehicle, its good or bad condition will also indirectly affect the performance of the four-wheel alignment.