This comprehensive Komatsu 155-4 Series Diesel Engine Service Repair Workshop Manual is a valuable resource for mechanics and DIY enthusiasts. Designed to enhance the quality of repairs, it provides a detailed understanding of the Komatsu 155-4 Series Diesel Engine, guiding users through every step of service and repair procedures. The manual covers a wide range of topics, starting with general information, including an overview, specifications, assembly drawings, weight tables, and engine performance curves. It then delves into the engine's structure and function, examining components such as the intake and exhaust system, turbocharger, aftercooler, engine body, lubrication system, fuel system, cooling system, and accessories. The manual goes further, providing detailed instructions for testing and adjusting various engine components, including the fuel injection timing, feed pump, and engine performance. It includes comprehensive data tables and tool lists for efficient troubleshooting and repair. Detailed disassembly and assembly procedures are included for essential components such as the water pump, turbocharger, starting engine, and fuel injection pump. Visual aids like illustrations and diagrams accompany each step to ensure accuracy and ease of understanding. The manual also addresses maintenance standards for a multitude of components, including the turbocharger, cylinder head, valves, crosshead, rocker housing, tappets, cylinder block, cylinder liner, crankshaft, camshaft, balancer shaft, timing gear, piston, connecting rod, oil pump, relief valve, regulator valve, safety valve, piston cooling valve, oil cooler by-pass valve, water pump, starting engine, and air compressor. Repair and replacement procedures are comprehensively outlined, covering the cylinder head section, cylinder block section, press fitting of bushings, replacing shrink-fitted gears, and other miscellaneous maintenance tasks. This manual is a valuable tool for anyone working on a Komatsu 155-4 Series Diesel Engine. Its detailed instructions, illustrations, and data tables make it an essential resource for performing accurate and efficient repairs.

The Komatsu 155-4 Series Diesel Engine is a robust and reliable power source designed for heavy-duty applications. This engine series is renowned for its durability, fuel efficiency, and low operating costs, making it a popular choice for construction, mining, and industrial equipment manufacturers. The 155-4 Series is an evolution of Komatsu's previous models, incorporating advancements in engine design and technology to enhance performance and longevity. Key features include a durable cast iron cylinder block, high-pressure fuel injection system for optimized combustion, and a sophisticated engine management system for precise control and emissions reduction. The engine's powerful torque and high horsepower output provide exceptional pulling power and responsiveness, enabling efficient operation in demanding environments. The Komatsu 155-4 Series Diesel Engine is available in various configurations to meet diverse power requirements. Different displacement options, turbocharging options, and cooling systems are available to suit specific applications. The engine's modular design facilitates maintenance and repair, with easily accessible components for quick and efficient service. Komatsu offers a comprehensive service and support network globally, ensuring that owners have access to genuine parts, expert technicians, and timely assistance. The 155-4 Series is known for its long service life and low maintenance requirements, minimizing downtime and maximizing operating efficiency. The engine's robust construction and advanced technology contribute to its reputation for reliability and performance, making it a valuable asset for businesses across various industries.