Instructions and settings40 27.06.2011ver. 23.17 Adjusting the seed coultersNOTE!Before commencing any work under the drill, be sure to secure it in the raised position. See”3.16 Locking the lifting rams during service” on page 39.3.17.1 Installation heightTo ensure a satisfactory sowing result, it is important that the seed coulters are correctly installedon the drill. Determine the installation height with regard to the conditions and the wear of thedisc. When the drill has been lowered with the discs resting on firm ground, the seed coultersshould not touch the surface e.g., (C > 0 mm). Please note that as the C measurement is reduced,the seed coulters become more susceptible to impacts with stones.Upon delivery, the seed coulters are installed in position A. This installation height suits most op-erating conditions.When drilling under very humid conditions, and with considerable plant residues in the soil sur-face or for shallow drilling in light or humus soil, the discs may occasionally stop. This can beavoided by moving the coulters up to position B. Position B, however, can result in impaired seedpositioning.The picture below shows an example of drilling with considerable plant residues in the soil sur-face. In this case, the seed coulter should be installed in position B.Figure 3.39Figure 3.37 Figure 3.38A BCB
