11 Fieldwork 11.3 Considerations before combining 67087 11.3 Considerations before combining 69384 11.3.1 When combining, remember: Wait until the crop has fully ripened – do not com- bine beforehand! (Higher yield, less moisture content and easier threshing are the result.) Where the heads are bent, install grain lifters close together. Where the crop is lodged, install grain lifters further apart (on every fourth to sixth cutterbar finger). Where straw and grain are brittle, set the concave wider and reduce the threshing drum speed. Too much short straw impedes the cleaning process. Cracked grain lowers the quality.
Where the straw is long, damp and tough, reduce the concave clearance and increase the threshing drum speed. Under damp conditions and where crops are also grown through with greenstuff, clean the concave, straw walkers and sieves regularly. Remember that the vital part of the cleaning proc- ess is the blast of the fan. Prevent the forming of »mats« on the sieves and unnecessary grain losses by using enough wind, adjusting the frog- mouth sieve correctly and using a flat sieve of sufficient hole size. When combining crops in which it is hard to remove the awns, additional rasp bars can be fit- ted to the concave. To get the best results from your combine run it at the right speed.
Therefore, check the speed on the straw walker shaft before the harvest. The cor- rect speed is 220-5 rpm. Correct cleaning of the air filter as well as clean fuel and regular oil changes are essential for high performance and long life of the engine. 196 00 0293 210 2 - BA DOMINATOR 150/140/130 - 12/09