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...Pressure in the hydraulic system of three point hitch tractor equiped with electrical and mechanical control i petransky s drabant j uak a ikla grman jablonicky slovak university agriculture nitra republic abstract goal measurement zts equipped digital electrohydraulical ehr d bosch during ploughing ploughs kuhn bottoms phx was to obtain time dependent states from view comparison obtained results testing conditions were determinated respect physical properties soil such as volume mass humidity penetration resistance shear beyond these measurements also operation parameters depth width working speed fuel consumption accomplished measured show big content loam elements stones simultaneously sets confirmed that are suitable for based on there is possibility infer following conclusions offers reliable function circuit by an improper distributor which causes peaks corres ponding safety valve adjustment has low conductive loading body higher when using mounted plough than semi keywords press...