Research to Improve Preventive Maintenance of Technical Equipment

In order to achieve the strategic level of military equipment exploitation, according to NATO requirements, it is necessary to continuously adapt the specific maintenance activities. The main objectives pursued in the maintenance system modernization process are: to implement reliability-based maintenance, to use management methods, to present the functional scheme, and to identify the critical points in which to intervene with maintenance operations. The use of the Pareto method in the direction research studied in the paper estimates that the first two faults among those identified, namely the imbalance of the braking force on the axle and the defective service brake, represent a significant percentage of the total downtime of the Roman-DAC trucks used for the present study. According to the AMDEC data sheet, these two defects have a criticality index of 70 and 60, respectively, compared to the following identified defects, which present a criticality index of 18 and 20, respectively. In practice, the aim will be to eliminate, in particular, the identified causes that entail defects in the first and second categories. Using this research methodology, and by extrapolation to all technical equipment components, it is possible to identify solutions to improve preventive maintenance by ranking defects and performing maintenance operations on those components more often subject to damage, before they fail.