MAINTENANCE OF DRILLING MACHINES USING PARETO ABC METHOD

Under the pressure of global competition, production facilities have seen their performance grow steadily. The machines are highly demanded, the speed of rotation and the operating time increase. This results in increased damage and breakdowns, which lead to unscheduled shutdowns. The costs of downtime are in these cases significantly higher than the costs of repair and overhaul. The prevention of machine damage is therefore of great economic significance to every business. Preventive maintenance leads to ensuring the continuity of industrial production by controlling the anticipation of the consequences of faults and by ordering their repair in a timely manner so that they do not affect the functioning of rotating machines. The objective of this work is to statistically analyze failures in the machine shop with ABC method and to select the critical machine. A maintenance plan has also been drawn up for the development that addresses the major problem that is the optimized reduction in downtime of the radial drilling machine (NKH45), given the importance of this production equipment to level of manufacturing activity. This method of reliability-based maintenance (RBM).