Rollers from non-net
Roller speed was mainly due to too low, intaglio gap is too large, excessive or feed crops feeding uneven; nail tooth, stria rods and intaglio rack excessive wear, threshing ability to reduce, or intaglio deformation caused by non-threshing net; premature harvest time, crop is too humid, threshing difficult, resulting in a net non-threshing. In view of the above faults can improve speed roller to reduce the gap intaglio, or reduce the combine forward speed; replacement tooth nail, stria rod, intaglio; appropriately increasing the drum speed and reduce the volume of feeding, can improve from a net rate.
