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Department of Mechanical Engineering, The Federal University of Technology, Akure E-mail address: [email protected]; [email protected] Agent-based preventive maintenance algorithm for the upkeep of hammer mill is being proposed. Material wastage has been a major challenge for production enterprises as a result of poor machine maintenance and incessant breakdowns recorded at the production floor. Hammer mill being machine that is meant for material size reduction or whose output serves as material input for other machines meant for production processes needs to be given a special are. In view of this, there is need to place a watchdog that monitors the behavior of the hammer mill and informs plant operator or enterprise managers what needs to be done in order to avoid sudden breakdown. The paper positions agent as a watchdog whose actions are predefined by set of algorithm for carrying out preventive maintenance activities on hammer mill machine using “if” and “then” rules as basis for its preventive and prognosis operations. Successful application of this methodology will reduce wastages and thus increase the machine optimal functionality and efficiency