This workshop service repair manual covers the Kubota ST alpha ST30 and ST alpha ST35 tractors. These compact utility tractors are known for their reliability and performance, building on Kubota's long-standing reputation for quality engineering. The ST alpha series represents an evolution of successful designs, offering enhanced features and updated styling suitable for a wide range of agricultural, landscaping, and property maintenance tasks. With an emphasis on durability and user-friendly operation, these tractors are designed to provide consistent performance and value. This comprehensive manual provides detailed information for the service, repair, and maintenance of the Kubota ST alpha tractors. It covers all major systems, including the engine, fuel, cooling, lubrication, electrical, transmission, drivetrain, hydraulics, steering, and braking systems. Included are step-by-step procedures for disassembly, assembly, rebuilding, and adjustment, alongside systematic troubleshooting and diagnostic guides. High-quality diagrams, schematics, and specifications are provided to assist professional technicians and DIY mechanics in maintaining and repairing these tractors efficiently.