This Operator's Manual covers the New Holland TM120, TM130, TM140, TM155, TM175, and TM190 tractors, part of the esteemed New Holland Agriculture line. Produced in the late 1990s and early to mid-2000s, these utility tractors offer robust performance ranging from approximately 120 to 190 horsepower, featuring diesel engines and advanced transmission options such as Powershift or powershuttle. Known for their competitive standing in the agricultural market, the TM series represented a significant advancement in power, comfort, and technology for its era. This manual is designed to provide essential operating knowledge, ensuring users can maximize the performance and longevity of their New Holland tractors. This comprehensive 372-page manual, presented in Spanish, details critical aspects of tractor operation, safety, and routine maintenance. It covers engine and transmission systems, hydraulic functions, electrical controls, and operator interfaces, along with essential safety precautions. Procedures for startup, shutdown, field operation, lubrication, and scheduled maintenance are clearly outlined. The manual also includes guidance on basic troubleshooting for common issues, focusing on operator-level adjustments and checks rather than in-depth repairs. It serves as an indispensable resource for farmers, agricultural operators, and technicians seeking to maintain and operate their New Holland TM series tractors effectively and safely.