This manual provides comprehensive information for the operation and maintenance of the Komatsu D155AX-6 bulldozer. It includes detailed instructions on operating procedures, safety precautions, and control functions. The manual covers routine maintenance tasks such as fluid checks, filter replacements, system inspections, and lubrication, along with recommended maintenance schedules to ensure optimal performance and longevity. Additionally, it offers troubleshooting tips, technical specifications, and guidelines for proper handling and storage. This document is essential for operators and maintenance personnel to maintain the efficiency, safety, and reliability of the Komatsu D155AX-6 bulldozer.