This manual covers the Case CX135SR Excavator, a robust machine designed for demanding operational environments. Engineered for reliability and performance, the CX135SR offers advanced features to enhance productivity and efficiency across a wide range of construction and earthmoving tasks. Its construction prioritizes durability and operator comfort, making it a valuable asset for any project requiring precision and power. This comprehensive English language manual serves as an essential guide for operating, maintaining, and servicing your Case CX135SR Excavator. It provides detailed information on general operation, safety protocols, instrument and control functions, lubrication, filters, fluids, maintenance procedures, adjustments, electrical systems, and technical specifications. With clear instructions, numerous illustrations, diagrams, and charts, this manual is designed to assist owners, operators, and technicians in ensuring the optimal performance and longevity of the equipment.