TY - SER AU - El-Nakib,A.A. AU - Abdel-Lateef,Z.Y. AU - El-Meseery,A.A. AU - Khattab,A.A. TI - Minimizing the harvesting losses of the wheat KW - Wheat KW - Harversting KW - Crop losses KW - Harvesting machinery N1 - Includes references N2 - The Kubota 'Combine (Pro 481) was used as mechanical harvester of wheat (Sakha 69) crop. The grain moisture content was varied at (22.5, 17 and 14%), forward speeds (2.3.27,4.5 and 5.14 krn/h) and air fan velocities (6.16, 7.02, 7.66 m/s) The previous factors were studied and evaluate its effects on combine losses. . The main objectives of this study were to determine the optimum operating conditions as time of harvest, forward speed and air fan velocity for adjusting the combine machine to obtain the minimum losses The results show that: _ The total losses was increased form 2.07% to 2.73% at forward __speed 2km/h, and form 4.37% to 5.24% at forward speed 5.14km/h at moisture content from 22.5% to 14% resp. _ The optimum operating harvesting of wheat crop was at combine forward speed 4.5 km/h and grain moisture content of 17.0%. . _ The optimum air fan velocity during operating harvesting wheat was 6.16 m/s UR - http://nile.enal.sci.eg/EALE/2003/MJAE/2003/4si/908.pdf ER -