This manual covers the Komatsu PC15MRX-1 Hydraulic Excavator, designed for efficient operation in various construction and utility applications. Built with Komatsu's renowned engineering quality, this compact excavator offers reliability and performance, featuring a robust diesel engine and a hydrostatic transmission for smooth, responsive control. Its compact dimensions and tracked drive system make it ideal for working in confined spaces and on challenging terrain. The PC15MRX-1 is engineered to deliver consistent power and precise maneuverability, ensuring productivity and operator satisfaction across a wide range of tasks. The purpose of this comprehensive Workshop Service Repair Manual is to provide detailed technical information for the maintenance, repair, and servicing of the Komatsu PC15MRX-1 Hydraulic Excavator. It includes essential data such as engine specifications, fluid capacities, service intervals, and performance metrics. Owners, technicians, and mechanics will find step-by-step procedures, diagnostic guidance, and technical drawings to effectively maintain the machine's optimal performance and longevity. This manual is an indispensable resource for ensuring the safe and efficient operation of your equipment.