This manual covers the Agrotron MK3 Series of agricultural tractors, including models Agrotron 106 MK3, 110 MK3, 115 MK3, 120 MK3, 135 MK3, 150 MK3, and 165 MK3. The Agrotron series represents a line of high-performance tractors. The MK3 designation signifies a specific generation within this series, indicating refined technology and performance. This workshop service repair manual provides comprehensive factory technical information, detailed diagrams, manufacturer specifications, and adjustment data to ensure the longevity and optimal performance of these tractors. The purpose of this comprehensive workshop service repair manual is to provide detailed instructions for repair technicians, service centers, and farm owners. It covers general information, mechanical and hydraulic systems, electrical and electronic systems, and external components, offering step-by-step instructions, diagnostic procedures, and maintenance guidance. The manual is designed to improve the quality of repairs by providing accurate information, including specific product recommendations, tightening torques, and adjustment data. While it offers extensive coverage, it is important to note that engine and transmission sections are excluded and would require separate manuals. The format ensures easy navigation with bookmarks and keyword searchability for efficient information retrieval.