What are the components inspected in a suspension system/frame check?

In a suspension system/frame check, the components that are typically inspected include air bags and torque arms. Air bags are key to the air suspension system, helping to absorb shocks and maintain a smooth ride by adjusting the air pressure based on load. Torque arms, on the other hand, are crucial for maintaining the correct alignment of the axle and preventing lateral movement during operation. Together, these components contribute to vehicle stability, handling, and ride comfort. Proper inspection of these parts ensures that they are functioning effectively and safely, which is essential for commercial vehicles that operate under heavy loads and challenging conditions.

The other options include components more relevant to different systems of the vehicle. For example, fifth wheels and king pins are related to coupling systems for trailers, brake chambers and quick release valves pertain to the air brake system, and exhaust pipes and mounting brackets are related to the exhaust system. While all these components are important for overall vehicle safety and performance, they do not specifically pertain to the focus of the suspension system/frame check.