Anot103 Bibliografické údaje: POŠTA, J.: Vliv údržby strojů na kontaminaci prostředí ropnými látkami. In: Proceedings of the International Scientific Symposium "Developmental prospects of agricultural machinery. MZLU, Brno, 1997, s. 239 - 244, ISBN 80-7157-244-6 Abstract: Oil substances are the most danger for an environment. There are many ways how oil substances penetrate into environment. During operation and maintenance of machines there is a large consumption of different materials based on oil substances. Wrong operation or maintenance of machines can make a contamination of environment. There are different procedures to reduce these hazards. The paper solves a substitution of operating materials based on oil substances by biologically degradable substances and a technical arrangement in maintenance reducing leakage of the operating materials (lubricants) from machines. Klíčová slova: oil substance; environment; biologically degradable substance; centred lubrication system; automotive dosing equipment of lubricant