DIAGNÓSTICO DO SISTEMA DE GESTÃO DE MANUTENÇÃO DE CARRETAS E CAVALOS EM OPERAÇÕES LOGÍSTICAS FLORESTAIS

Abstract

The efficiency of maintenance in heavy fleets operating in forestry logistics is decisive for operational availability and continuity of the supply flow. This study aimed to evaluate the maintenance management system of the assets used in six-trailer compositions of a pulp company. It is an applied, descriptive, and quantitative research conducted as an empirical study, based on the analysis of maintenance orders recorded in SAP (Systems, Applications, and Products in Data Processing) between May and October 2025. The indicators MTBF (Mean Time Between Failures), MTTR (Mean Time to Repair), mechanical availability, preventive adherence, failure patterns, and material consumption were calculated, and Pareto analysis was applied to identify the most significant causes. The results showed a low MTTR accompanied by a decline in MTBF and mechanical availability, indicating a high recurrence of failures and accelerated component wear. Failures were concentrated in structural systems, reinforcing the influence of operating conditions on reliability. The high preventive adherence did not prevent premature failures, highlighting limitations in the preventive plan, backlog control, and data quality. Future studies may expand the historical series analyzed, apply condition-based predictive techniques, evaluate structural interventions to reduce repeated failure modes, and improve the accuracy of maintenance records in SAP to increase the reliability of the indicators.