The Komatsu 730E-8 DUMP TRUCK, applicable to serial numbers A40003 and up, is a heavy-duty off-highway articulated dump truck engineered for high-capacity material transport in demanding mining and construction environments. This robust machine features a V12 turbocharged and aftercooled Cummins QSKTA38-C diesel engine producing 1050 HP, coupled with a Komatsu Advanced Transmission with Digital Control (ADTDC) 6-speed automatic transmission and all-wheel drive. Its design prioritizes durability, reliability, and operational efficiency, reflecting Komatsu's legacy in manufacturing powerful and innovative heavy equipment. The 730E-8 is built to withstand harsh conditions, offering substantial payload capacity of approximately 154 US tons and a heaped body volume of around 172 m³.

This Service Repair Manual provides comprehensive coverage for the Komatsu 730E-8 DUMP TRUCK, detailing essential information for maintenance and repair. The manual covers all major systems, including the powertrain, hydraulics, electrical, chassis, and body. It offers detailed procedures for preventive maintenance, component overhaul, assembly and disassembly, and replacement. Furthermore, it includes extensive troubleshooting guides, fault code interpretation, symptom-based diagnostics, and comprehensive electrical schematics with wiring diagrams. With 473 pages of detailed instructions and technical specifications, this manual is an indispensable resource for owners, mechanics, and technicians seeking to maintain, diagnose, and repair the 730E-8 effectively and ensure its optimal performance and longevity.