This workshop service repair manual covers the Volvo ZL 402 C Series Tractor, a line of equipment built upon Volvo's heritage of robust engineering and reliability. Designed for demanding agricultural and industrial applications, the ZL 402 C Series represents a refined platform with a focus on durability and performance. This manual is an essential resource for understanding and maintaining these capable machines, ensuring they operate at peak efficiency throughout their service life. This comprehensive manual provides detailed information for all models, engines, trim levels, and transmission types within the ZL 402 C Series. It covers an extensive range of topics, including routine maintenance, scheduled servicing, troubleshooting, diagnostics, component removal and installation, overhaul procedures, and repair techniques. With detailed diagrams, electrical schematics, wiring diagrams, and specific technical data, this manual empowers owners, mechanics, and technicians to perform accurate diagnostics and effective repairs, ultimately reducing downtime and operational costs.