4. After unscrewing the nut from the handle, pull out the tool, push inward from the front of the collet and press down against the bottom of the eccentric circle at the same time, and push the collet diagonally until the collet...
Ding, W.M. Agricultural Mechanics; China Agriculture Press: Beijing, China, 2011; pp. 121–122. 27. Yu, H.; Ding, Y.; Fu, X.; Liu, H.; Jin, M.; Yang, C.; Liu, Z.; Dou, X. A solid fertilizer and seed application rate measuring system for a seed-fertilizer drill machine....