This comprehensive Komatsu 155-4 Series Diesel Engine Service Repair Manual provides detailed information and guidance for servicing and repairing your engine. It covers everything from general specifications and assembly drawings to in-depth breakdowns of engine components, testing procedures, and maintenance standards. The manual includes detailed electrical and hydraulic diagrams, along with numerous real-life photographs and illustrations, to ensure clear understanding of each step. This step-by-step approach enables you to confidently perform repairs, servicing, technical maintenance, and troubleshooting procedures for your machine. Within the manual's pages, you'll find comprehensive coverage of the following: * **General Overview:** This section outlines the engine's basic structure, provides specifications, and includes assembly drawings and weight tables. * **Structure and Function:** A deep dive into the engine's intricate workings, covering the intake and exhaust systems, turbocharger, aftercooler, engine body, lubrication system, fuel system, cooling system, and accessories. * **Testing and Adjusting:** Detailed instructions on how to test and adjust key engine components, such as fuel injection timing, fuel injection pumps, and performance settings. * **Disassembly and Assembly:** Step-by-step guidance for disassembling and reassembling various engine components, including the water pump, turbocharger, starting engine, fuel injection pump, and more. * **Maintenance Standards:** Clear guidelines and recommendations for maintaining the engine's various components, such as the turbocharger, cylinder head, valves, crankshaft, piston, connecting rods, and other critical parts. * **Repair and Replacement:** Comprehensive information on repairing and replacing components, including detailed descriptions of processes like press fitting bushings and replacing shrink-fitted gears. This manual is your complete resource for mastering the maintenance and repair of your Komatsu 155-4 Series Diesel engine.

The Komatsu 155-4 Series Diesel Engine is a powerful and reliable powertrain designed for heavy-duty applications. This engine is a staple within the Komatsu lineup, renowned for its durability and performance. It boasts a robust construction, featuring high-quality components engineered for extended operational life and minimal downtime. The 155-4 Series engine is known for its impressive torque output, enabling it to handle demanding tasks with ease. Whether it powers excavators, bulldozers, or other heavy equipment, this engine consistently delivers exceptional power and efficiency. Beyond its raw power, the Komatsu 155-4 Series Diesel Engine prioritizes fuel efficiency and environmental responsibility. Through advanced technologies like electronic fuel injection and optimized combustion chamber design, the engine achieves impressive fuel economy while minimizing emissions. This focus on both performance and sustainability makes the 155-4 Series an environmentally conscious choice for operators. The service repair manual for this engine is an essential resource for maintaining peak performance and extending its lifespan. It provides in-depth information on troubleshooting, repair procedures, and component specifications, enabling technicians to diagnose and resolve issues effectively. With the aid of this manual, operators can ensure their Komatsu 155-4 Series engines remain in peak condition, maximizing their operational efficiency and minimizing downtime.