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The methods used were the Ishikawa diagram, Pareto diagram and PHVA methodology, the instruments used were the interview and the summary sheet. Compared to other studies, the present study has considered the implementation of fuel sensors, fatigue control, load tonnage and tire pressure. The improvement in the productivity of the loading and hauling process was reflected in the increase of the indicators of instantaneous productivity for CAT 374 increased 352.20 Ton/hour, for CAT390 is 284; the operational productivity for CAT 374 increased 42.38 and for CAT390 increased 32.59; the effective...