Repair and Maintenance Cost Analysis of John Deere 5403 Tractor in the Gambia
The paper presents an approach for deriving a mathematical model that predict repair and maintenance (R&M) cost of farm tractors in The Gambia. As John Deere (JD) tractors are widely used by Gambian farmers, a study was conducted to predict accumulated repair & maintenance costs (Y) of the two-wheel drive (2WD) JD-5403 tractor based on accumulated working hours (X). In order to determine the mathematical model for the studied tractor, regression analysis using knowledge based analytical software (SPSS STATISTICS 21 and Excel 2016 version) was performed on the calculated data generating five regression models: linear, logarithmic, polynomial, power and exponential. The statistical results showed that the polynomial model gave better cost prediction with higher confidence and less variation than other models. Finally, it was established that repair and maintenance cost increased with an increase in working hours of JD-5403 tractor.
E. William, "Estimating Farm Machinery Costs," Iowa State University Extension and Outreach, Iowa, 2015.
A. Nyockeh, "Training for 50 farmers on tractor operating underway," The Point Newspaper, The Gambia, Thursday August 2012.
P. T. Jammeh and M. Minteh, "Reports of the 3rd Nation-wide maintenance activity," Agric Engineering Service Unit, Yundum, 2015.
G. Khoub bakht, H. Ahmadi, A. Akram and M. Karimi, "Repair and maintenance cost models for MF285 tractor: A case study in central region of Iran," American Eurasian Journal of Agricultural and Environmental Science, vol. I, no. 4, p. 76 80, 2008.
S. Ward, M. PB and C. MB, "Repair costs of 2 and 4 WD tractors," Transactions of the ASAE, vol. 28, no. 4, pp. 1074-1076, 1985.
M. Hanna, "Machinery Management: Fuel Required for Field Operations," AgDM information File A3-27, Iowa State University Extension, 2001.
K. C. Oni, "Reliability of agricultural machinery in Kwara State," in Paper presented at the 11th Annual Conference of Nigerian Society of Agricultural Engineers, University of Nigeria., 1987.
S. Oluka, "costs of tractor ownership under different management systems in Nigeria, Nigerian journal of technology," vol. 19 (1), pp. 15-28, 2000.
M. Rashidi and I. Ranjbar, "Modeling of Repair and Maintenance Costs of," American-Eurasian J. Agric. & Environ. Sci, vol. 9 , no. 6, pp. 605-609, 2010.
R. Khodabakhshian and M. Shakeri, "Prediction of repair and maintenance costs of farm tractors by using of preventive maintenance," International Journal of Agriculture Sciences, vol. 3, no. 1, pp. 39-44, 2011.
M. Abubakar, "Determination of repair and maintenance cost for MF375 tractor: a case study in kano metropolis, Nigeria," Zone Journal of Engineering, Technology and Environment, vol. 9, pp. 27-35, 2013.
- There are currently no refbacks.