Komatsu HD785-7 Dump Truck Workshop Repair Service Manual – PDF Download

This is the official Komatsu factory shop manual for the HD785-7 dump truck, a heavy-duty workhorse used in demanding mining and construction environments. This comprehensive PDF manual provides the essential technical information required for professional-grade service, repair, and maintenance of the entire machine. With over 1,800 pages of detailed instructions, it is the definitive resource for any technician working on this model. Owning this manual ensures you have the exact specifications and procedures used by Komatsu’s own service personnel, directly from the source.

File Details

• Document Type: Factory Shop Manual (Workshop Manual)
• Brand / Manufacturer: Komatsu
• Machine Model: HD785-7
• Applicable Serial Numbers: 7001 and up
• Document Number: SEN01274-15
• Language: English
• Total Pages: 1,821
• File Format: PDF (Searchable and Printable)
• Publication Date: 2010

Chapters Covered

The manual is structured to provide a complete and logical workflow for servicing the Komatsu HD785-7. It covers every major system in detail:

• 00 Index and Foreword: Manual composition, safety notices, standard torque tables, and basic operating instructions.
• 01 Specification: Complete technical specifications, including weights, dimensions, performance figures, fluid capacities, and tire pressures.
• 10 Structure, Function, and Maintenance Standard: In-depth breakdowns of each system with detailed mechanical principles, function diagrams, and inspection criteria.
• 20 Standard Value Table: A quick-reference section listing all essential standard values for new machines, including engine performance, oil pressures, and travel speeds.
• 30 Testing and Adjusting: Step-by-step procedures for testing and adjusting all systems, including engine, power train, brakes, steering, and hydraulics. Features detailed special tools lists and comprehensive testing methods.
• 40 Troubleshooting: A massive section dedicated to diagnosing faults. Includes failure code tables, a fault history function, and guided troubleshooting charts for electrical, mechanical, and engine-related issues.
• 50 Disassembly and Assembly: Detailed procedures for the removal and installation of major components, along with full disassembly and assembly instructions, coating materials, and special tool lists.
• 90 Diagrams and Drawings: Complete hydraulic circuit diagrams and large, easy-to-read electrical circuit diagrams for all cab and chassis systems.

IMAGES PREVIEW

The manual goes far beyond a simple list of chapters. It is a complete technical encyclopedia. It provides the certified mechanic with the necessary knowledge to diagnose complex electronic control systems, rebuild the advanced planetary transmission (TORQFLOW), service the oil-cooled multiple-disc brakes, and troubleshoot the sophisticated common-rail fuel injection system on the SAA12V140E-3 engine. Every procedure, from basic maintenance to a full engine overhaul, is described in precise detail.

This genuine Komatsu shop manual is an indispensable tool for any workshop or independent technician. Having this manual on hand means you are working with the same information as a dealer, which translates to faster diagnosis, correct first-time repairs, and the confidence to tackle any job.

The searchable PDF is delivered immediately after purchase, allowing you to get started on your repairs without delay. It is compatible with laptops, tablets, and smartphones, and can be printed to have a physical copy in your workshop. Save time, money, and frustration by investing in the correct repair information for your Komatsu HD785-7 dump truck.