This workshop service repair manual provides comprehensive information for the Komatsu 67E-1 engine, part of the 67E Series. Designed for reliability and performance, this diesel engine is engineered to meet demanding operational requirements. Its water-cooled system and pressurized lubrication ensure efficient and durable operation across various applications. While specific model years are not detailed, this manual covers the essential aspects of the 67E-1 engine family, reflecting Komatsu's commitment to robust and dependable power solutions. This manual serves as an indispensable resource for owners, mechanics, and technicians. It details essential maintenance procedures, including recommended intervals and fluid capacities, along with guidance on filter replacement. The document also includes thorough troubleshooting sections to address common issues, ensuring the engine remains in optimal condition. Technical specifications, such as ignition system details, are provided to facilitate accurate diagnosis and repair, empowering users to maintain and service the Komatsu 67E-1 engine effectively.