The Valtra T150, T160, and T170 tractors represent a line of versatile and powerful agricultural machinery, built with the robust engineering and reliability for which Valtra is known. As a well-established Finnish manufacturer, now part of AGCO Corporation, Valtra tractors are recognized for their advanced technology and performance in demanding agricultural operations. The T-series, in particular, offers a mid-to-high horsepower range, making these models suitable for a wide array of tasks. This shop service repair manual provides comprehensive factory-level information designed to support the longevity and optimal performance of these essential machines. This manual serves as an indispensable resource for technicians, mechanics, and tractor owners. It offers detailed coverage across all major systems, including engine service and repair, transmission operation and maintenance, brake system diagnostics, and the complete electrical system with detailed wiring diagrams. Procedures for general maintenance, troubleshooting, component repair, and diagnostics are explained step-by-step, supported by original manufacturer technical data, specifications, and recommended lubrication charts. Safety guidelines are also integrated, ensuring that all maintenance and repair activities are conducted with the utmost care and adherence to best practices.