This report contains the design of a total productive maintenance manual for grain selection and packing machines and equipment at DIANA CORPORACIÓN S.A.S, Siberia section. Supported by industrial maintenance and techniques for data and information collection, supported by the study of the Japanese institute for plant maintenance. It also includes the design of the preventive maintenance plan, supported in the manual for each of the machines, equipment and the design of their resumes. In addition, the functions manual is designed and the job descriptors updated for the employees and collaborators of the grain unit. The national level implementation of the function manuals and job descriptors is achieved. The aim is to implement the manual in the short term in the company DIANA CORPORACIÓN S.A.S.