What are the symptoms of a broken steering gear in a large truck?
2 Answers
The following are the symptoms of a damaged steering gear in a large truck: 1. Oil leakage from the steering gear. 2. Abnormal noise when turning the steering wheel. 3. A 'click' sound when turning the wheel to the extreme and returning. 4. Heavy steering wheel. Below are the causes and solutions for steering gear malfunctions: 1. Power steering pump failure. When the pump pressure of the power steering pump fails to meet the standard value, it is evident that the heavy steering is related to this. Check whether the mating surface of the flow control valve and the valve seat is not tightly sealed, and whether the safety valve steel ball is not properly closed. 2. Steering gear failure. If the inspection reveals that the hydraulic pressure of the steering gear is low, it indicates that the heavy steering is caused by the steering gear. In this case, professional manufacturers should be consulted for repair. Most steering gear failures are caused by scratches on the piston or cylinder barrel, or damage to the piston seal ring, which allows the two chambers of the piston to communicate, preventing the effective establishment of assist pressure. 3. Lack of oil or air in the system. If the power steering system lacks oil, causing air to enter the system, not only will the steering feel heavy, but there will also be noise during steering. In this case, simply follow the oil filling and air bleeding procedure to remove the air.
Having driven heavy trucks for over 20 years, I can tell you the symptoms of a failing steering gear are very obvious. At first, the steering wheel becomes extremely heavy when turning, requiring great effort as if there's no power assist. Gradually, you'll notice play in the steering wheel - a loose, wobbly feeling with slight movement while the wheels don't actually respond. The most annoying symptom is when the truck pulls to one side when going straight, requiring constant steering correction. Once when climbing a hill, I heard grinding noises from the steering gear and found power steering fluid leaking everywhere after stopping. Never ignore these symptoms - immediately reduce speed and pull over safely. Steering system failures are especially dangerous in loaded heavy trucks, particularly on long descents or winding roads. Call for emergency towing to a repair shop immediately for steering gear inspection and replacement - safety always comes first.
