This comprehensive Komatsu D85C-21 (For -50°C SPECIFICATION) PIPELAYER Service Shop Repair Manual provides in-depth information on maintaining, assembling, disassembling, and servicing your Komatsu D85C-21 PIPELAYER. This manual covers machines with serial numbers D85C-21 - 36551 and up. It includes detailed information on the S6D125-2 engine, which powers the D85C-21. For a more in-depth understanding of the engine, refer to the 125-2 Series Engine Shop Manual. The manual is organized into four main sections: * **General:** This section provides an overview of the Komatsu D85C-21 PIPELAYER and its components. * **Structure and Function:** This section details the construction and operation of the machine, explaining how each component works together. * **Testing and Adjusting:** This section guides you through the process of testing and adjusting various components and systems of the machine for optimal performance. * **Disassembly and Assembly:** This section provides step-by-step instructions for taking apart and putting together different parts of the PIPELAYER, including detailed diagrams and illustrations. * **Maintenance Standard:** This section outlines the recommended maintenance procedures and schedules for the D85C-21 PIPELAYER. The manual is packed with detailed specifications, diagrams, and real-world photographs, providing a complete step-by-step guide for repair, servicing, technical maintenance, and troubleshooting procedures. This manual equips you with the comprehensive information needed to diagnose and resolve issues efficiently, saving you time and money. The manual is fully searchable and bookmarked for easy navigation. You can easily find the information you need, print specific pages for reference, and use them as a valuable resource in your garage or workshop. You can perform your own repairs with confidence, using the easy-to-follow step-by-step instructions, regardless of your skill level.

The Komatsu D85C-21 Pipelayer is a heavy-duty construction machine designed for demanding pipeline installation tasks in extreme cold weather conditions. Specifically engineered for operation down to -50°C (-58°F), the D85C-21 boasts a robust and durable build, incorporating advanced features to ensure reliable performance even in the harshest environments. Its powerful engine and hydraulic system, optimized for cold-weather operation, deliver exceptional pulling and laying capabilities, enabling efficient and precise pipeline installation in challenging terrains. The machine is equipped with a specialized undercarriage featuring wide shoes and tracks to enhance stability and traction on frozen ground. Additionally, the D85C-21 incorporates a heating system for the engine and hydraulic components, ensuring smooth operation even in sub-zero temperatures. Furthermore, the Komatsu D85C-21 Pipelayer is designed for operator comfort and safety in cold climates. The spacious and well-insulated cab features a heated seat, adjustable controls, and a clear view of the work area. The machine also incorporates safety features such as an emergency stop system and a comprehensive warning system that helps to prevent accidents and ensure operator well-being. The D85C-21 is renowned for its reliability, durability, and cold-weather performance, making it an essential tool for pipeline construction projects in remote and challenging environments. The Service Shop Repair Manual, specifically designed for the -50°C specification model, provides comprehensive information and guidance for maintenance, troubleshooting, and repair of the D85C-21 pipelayer, ensuring its optimal performance and extended lifespan.