This comprehensive Operation & Maintenance Manual provides detailed information for the Komatsu HD785-5 Dump Truck, specifically for machines with serial numbers 4085 and up.

The manual covers a wide range of topics essential for safe and efficient operation and maintenance, including:

* **Foreword:** Introduces the purpose and scope of the manual.
* **Safety Information:** Emphasizes critical safety procedures and precautions to be followed during operation and maintenance.
* **Introduction:** Provides an overview of the HD785-5 Dump Truck, its components, and key features.
* **Location:** Details the location of various components, systems, and assemblies within the machine.
* **Specifications:** Presents technical specifications, including dimensions, weight, engine power, and performance data.
* **Operation:** Covers starting, stopping, driving, operating the dump body, and other operational procedures.
* **Maintenance:** Provides detailed instructions for performing scheduled maintenance tasks, including lubrication, inspection, and replacement of parts.
* **Troubleshooting:** Offers guidance on diagnosing and resolving common problems that may arise during operation or maintenance.
* **Technical Data:** Includes detailed technical diagrams, schematics, and component descriptions.
* **Appendices:** Contains additional information, such as parts lists, service bulletins, and warranty information.

This manual serves as an indispensable resource for operators, technicians, and maintenance personnel involved with the Komatsu HD785-5 Dump Truck. It provides essential information to ensure safe and efficient operation, minimize downtime, and extend the life of the machine.

The Komatsu HD785-5 is a high-capacity rigid dump truck designed for heavy-duty hauling in mining, construction, and quarrying applications. This robust machine boasts an impressive payload capacity of 110 metric tons (121.25 US tons), making it suitable for transporting large volumes of materials efficiently. Powered by a potent Komatsu SAA12V140E-3 engine, the HD785-5 delivers exceptional power and torque, enabling it to navigate challenging terrain and steep inclines with ease. To ensure optimal performance and longevity, the truck is equipped with a durable drivetrain featuring a planetary final drive, providing high torque and reliability. The HD785-5 is engineered with advanced hydraulic systems, including a powerful hydraulic brake system, ensuring safe and controlled operation.

The Komatsu HD785-5 is designed with the operator's comfort and safety in mind. The spacious and ergonomic cab offers a commanding view of the surroundings, enhancing situational awareness. The truck features a comprehensive suite of safety features, including a robust rollover protection structure (ROPS) and a fall-protection system (FOPS). The HD785-5 is also renowned for its fuel efficiency, thanks to features such as a fuel-efficient engine and a sophisticated engine management system. This combination of high productivity, reliability, and safety makes the Komatsu HD785-5 a preferred choice for demanding hauling applications across various industries.