Development of a model for estimating repair and maintenance cost for Mahindra 6005 tractor: A case study of tractor owners and Operators Association of Nigeria (TOOAN) in Kaduna State, Nigeria

Abstract

A Mathematical model was developed to predict optimum repair and maintenance cost for Mahindra 6005 model tractor, with a view to providing such decision-making aids as machine’s replacement and overall farm budgeting for machinery managers. Information on 75 Mahindra 6005 tractors was obtained through a structured questionnaire. Data collected was sought on tractor characteristics and economic costs such as use of tractor each year, fuel consumption cost, lubrication oil cost, oil and fuel filters replacement cost and labour cost. Result showed that the cost of tractor spare parts replacement had the highest percentage share (54.2%) from the total percentage cost followed by cost of fuel (20.4%), labour cost (13.0%), and then cost of lubrication oil (10.3%) while cost of oil and fuel filter replacement had the least (2.1%) percentage share.