Custo de manutenção preventiva de tratores agrícolas na fronteira oeste do estado do Rio Grande do Sul

Abstract

This study aimed to estimate the cost of preventive maintenance parts and components of 10 agricultural tractors of different brands and models, in two previously defined power classes. The study was carried out by LAMAP (Laboratory of Agricultural Mechanization of Pampa), belonging to the Federal University of Pampa (Unipampa) located in the city of Alegrete, in which a survey was carried out of the five brands of agricultural tractors and power ranges most used on the border. west of Rio Grande do Sul. For this, ten examples of tractors were defined to be studied, belonging to two power classes, these being from 50.3 to 100.5 hp (class II) and 100.6 to 199.7 hp (class III). For the survey of preventive maintenance, the maintenance groups were defined according to the hours worked, considering revisions every 250, 500 and 1000 hours. After data collection, the preventive maintenance cost index was calculated to compare the values obtained. It was found that the preventive maintenance costs presented variations according to the models studied, and the higher power models represented the highest maintenance cost. It was also concluded that the brand with the lowest maintenance cost index for class II was the same for class III, while the brand with the highest cost found in class II was different from that found in class III. Regarding the maintenance intervals, these showed variations according to the brand and in some cases between the models studied. Keywords: Agricultural machinery. Index numbers. Fixed costs.