This manual pertains to the Kato HD1023III, a robust piece of heavy machinery designed for demanding work environments. While specific production years are not detailed, this document covers serial numbers 9478101 and up. The HD1023III is powered by a Mitsubishi 6D34 series diesel engine, typically producing between 160-180 horsepower, and features an operating weight of approximately 20,000-22,000 kg. Its engineering is focused on reliability and performance, making it a dependable choice for construction and industrial applications. This Service Manual and Engine Shop Manual, provided in English, offers comprehensive guidance for the maintenance and repair of your Kato HD1023III. It details essential procedures, technical specifications, and safety protocols necessary to ensure optimal performance and longevity of the equipment. Owners, technicians, and mechanics will find detailed information on engine service, hydraulic systems, lubrication schedules, fluid types, and troubleshooting, enabling effective upkeep and repair.