1. The Sterling L-Line Truck Maintenance Manual covers the L7500 through L9513 models and the A9500 through A9522 models. This comprehensive manual provides detailed instructions and diagrams for maintaining and repairing these trucks, ensuring optimal performance and longevity. From engine maintenance to electrical systems, suspension, and brakes, this manual is a valuable resource for truck owners and mechanics alike. With clear and concise instructions, this maintenance manual is a must-have for anyone working with Sterling L-Line trucks.