This comprehensive service manual pertains to the Nichiyu 50 Series forklifts, specifically models FBT10, FBT13, FBT15, and FBT18P. Designed for industrial use, these forklifts represent robust engineering and reliable performance within their operational class. This manual is tailored to provide detailed guidance for maintaining and repairing these essential pieces of equipment, ensuring their continued efficiency and longevity in demanding work environments. The scope of this manual is extensive, covering all aspects of servicing and repair from A to Z, including routine maintenance procedures. It is structured to offer clear, step-by-step instructions, complemented by illustrative pictures and wiring diagrams. This resource is intended for owners, mechanics, and technicians, empowering them with the knowledge necessary to effectively troubleshoot issues, perform repairs, and conduct regular upkeep, thereby maximizing the operational uptime and safety of the Nichiyu 50 Series forklifts.