This paper contains presentation of problems of securing demand for spare parts for agricultural vehicles. Tasks carried out by a distribution and service company, which is the authorized dealer in the sector of agriculture service, have been characterized. The research was conducted for the group of parts including filters of: fuel, engine oil, oil for hydraulic system and gear box for JOHN DEERE agricultural vehicles. Selected parts were cyclically sold in connection with a change during the realization of technical inspections and post-technical inspections. The cycle of the conducted research encompassed the years 2003-2010. The research was carried out in the service department of the authorized dealer of agricultural vehicles of the DEERE & Company concern. The analysis of the number of sold filters in monthly, quarterly and annual arrangement was presented. The research results were statistically analyzed using the R program (v. 2.14.1.). The trend, random fluctuations and seasonal fluctuations for the series of monthly observations were determined. The analysis of the impact of works and agritechnical measures on demand for filters for agricultural vehicles was conducted.
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