What is the air pressure range for the M915 during operation?

Answer: B — 90-120 PSI

The correct air pressure range for the M915 during operation is 90-120 PSI. This pressure range is essential for optimal performance, as it allows the braking system to function effectively, ensuring safety and control during operation. Maintaining proper air pressure is crucial for the operation of air brakes, which are standard in heavy vehicles like the M915. If the air pressure falls below this range, it can result in diminished braking power and potentially compromise vehicle safety. Ensuring that the air pressure remains within the specified range also aids in maintaining the overall operational efficiency of the truck, allowing it to perform under varying load conditions and terrain. Proper training in the significance of these parameters is essential for operators to ensure safe and efficient driving of the M915.