In this paper, analysis and research on various topics directly related to the maintenance display, which focus toward a firm mass transit that currently presents problems in maintaining and therefore there are huge losses as productivity and credibility among customers, will begin with a definition and shaping of the problems presented here in order to identify the most representative flaws. Then it continues with the development of the theoretical framework and issues related to the problems presented, in order to make an appropriate design for the implementation of the 5M is necessary to establish performance indicators and some improvements in the maintenance area this work must go accompanied procurement of spare parts, training, procedures, which is represented in investment costs, to keep track of these tasks to create a maintenance plan is proposed, considering the machines, the methodology, environment, labor and raw material. Finally some recommendations and conclusions of the strategy will be applied.