This repair manual provides detailed information and technical data for servicing and repairing Komatsu 170-3 Series Excavators equipped with the QSK23 engine. It covers a wide range of topics, including engine systems, transmission, drivetrain, chassis, body, electrical systems, and comfort and convenience features. You'll find comprehensive coverage of engine components, mechanical and electrical systems, emission control, fuel systems, timing chain service and exhaust service. The manual also includes detailed information on transmission systems, including clutch systems, manual and automatic transaxles. Drivetrain coverage includes driveshafts, axles, U-joint and CV joint service procedures, differential and driveline maintenance. Chassis systems are covered in detail, including chassis overview, suspension systems, steering systems, wheels, and brakes. Body systems covered include interior and exterior details, as well as body electrical systems. The manual provides extensive information on electrical systems, including charging systems, starter systems, batteries, switches, and electronic control modules (ECMs). Finally, it includes detailed information on comfort and convenience features such as HVAC, audio/video systems, chimes/buzzers, heated systems, horns, instrument clusters, lamps, message systems, and power systems. This manual is designed to be easy to use, with clear and concise language and step-by-step instructions. It is developed by experts, ensuring accuracy and reliability.

The Komatsu 170-3 series excavators are a line of heavy-duty construction equipment known for their power, durability, and reliability. These excavators are designed for a wide range of applications, including excavation, loading, demolition, and material handling. The 170-3 series is powered by the QSK23 series engine, a powerful and efficient diesel engine that provides ample torque and horsepower for demanding tasks. Komatsu has engineered these models for optimal performance and efficiency, featuring advanced hydraulic systems, robust undercarriages, and operator-friendly cabs.

The Komatsu 170-3 series excavators boast a range of features designed to enhance operator comfort and safety. A spacious, well-equipped cab provides a comfortable work environment, reducing fatigue during long shifts. The controls are ergonomically designed for ease of operation, minimizing strain and promoting precision. Visibility is excellent, with expansive windows and strategically placed mirrors offering clear views of the work area. Safety features include a comprehensive alarm system, roll-over protection, and emergency shut-off buttons. The Komatsu 170-3 series excavators demonstrate Komatsu's commitment to building reliable, efficient, and operator-friendly machines that meet the demands of the modern construction industry.