This comprehensive Komatsu Bulldozer D155AX-6 Galeo ECOt3 Workshop Service Repair Manual provides detailed information and instructions for servicing and repairing your bulldozer. Covering serial numbers 80001 and up, this manual is an essential resource for technicians, mechanics, and operators who need to understand the intricacies of this powerful machine. The manual begins with an index and foreword, outlining the scope of the manual and providing general information. A detailed specification section follows, offering technical data and specifications for the D155AX-6 ECOt3. The manual then delves into the structure, function, and maintenance standards of the bulldozer, covering key components such as the engine and cooling system, power train, undercarriage and frame, hydraulic system, work equipment, cab and attachments, and electrical system. For efficient troubleshooting, the manual includes a standard value table, offering a comprehensive guide to service values. This is followed by a dedicated section on testing and adjusting procedures for various components. Troubleshooting is further simplified with detailed guides on general information, failure and error codes, electrical system troubleshooting (E-mode), hydraulic and mechanical system troubleshooting (H-mode), and engine troubleshooting (S-mode). To assist with repair and maintenance, the manual includes detailed disassembly and assembly instructions for all major components, including the engine and cooling system, power train, undercarriage and frame, hydraulic system, work equipment, cab and attachments, and electrical system. Finally, the manual concludes with a comprehensive collection of hydraulic and electrical diagrams and drawings, providing visual aids for understanding complex systems and facilitating troubleshooting and repair efforts.

The Komatsu D155AX-6 Galeo ECOt3 bulldozer is a powerful and versatile machine designed for demanding earthmoving applications. This robust crawler tractor boasts a 15.2-liter, six-cylinder Komatsu SAA6D170E-6 engine that delivers impressive power and torque, enabling it to handle challenging excavation and grading tasks with ease. The D155AX-6 is equipped with a sophisticated electronically controlled hydrostatic transmission system, offering smooth and efficient power transfer, precise control, and high fuel efficiency. The Galeo ECOt3 model incorporates advanced features, such as the Komatsu ECO Mode, which optimizes engine performance for fuel efficiency without compromising power. The operator cab provides a comfortable and ergonomic work environment with excellent visibility, minimizing operator fatigue and enhancing safety. Additional features like automatic lubrication systems, a high-capacity air conditioning system, and a comprehensive monitoring system contribute to its reliability, durability, and operator comfort. The D155AX-6 Galeo ECOt3 is specifically designed for demanding construction projects. Its powerful engine and robust construction allow it to handle heavy loads, such as moving large quantities of earth for site preparation, road building, and heavy construction projects. The machine's maneuverability, enabled by its electronically controlled hydrostatic transmission, allows for precise operation in confined spaces. The Galeo ECOt3 is equipped with a range of attachments, including different types of blades, rippers, and other implements, allowing for a wide range of applications. This adaptability makes the D155AX-6 a valuable asset on various construction sites. The ECOt3 model emphasizes fuel efficiency and environmental consciousness, making it an attractive option for contractors seeking to reduce their environmental footprint while maintaining high productivity. The D155AX-6 Galeo ECOt3, with its combination of power, efficiency, and versatility, is a reliable and dependable workhorse for demanding construction needs.