This Technical Service Manual provides comprehensive guidance for FE, FG, FK, and FM series trucks manufactured between 2005 and 2007. Known for their robust engineering and reliability in vocational applications, these commercial vehicles are built for durability and efficiency. The manual covers a wide range of models within these series, reflecting a long-standing reputation for producing dependable work trucks essential for various business operations.

This extensive manual, totaling 3164 pages, is designed to be an authoritative resource for maintaining and repairing these vehicles. It offers detailed coverage of all major systems, including engine mechanical and electrical components, fuel, cooling, lubrication, transmission (manual and automatic), driveline, suspension, steering, brakes, HVAC, and body systems. Key sections include scheduled maintenance procedures, troubleshooting guides, diagnostic techniques, component removal and installation instructions, and detailed electrical wiring diagrams, making it invaluable for owners, technicians, and mechanics.