... “Return” button, can get the corresponding action. Release the button, the machine immediately stop action. 3.7.2.2. Semi-automatic: ... cycles Choose “Unroofed” button, the ejection cylinder no action. The rest of the action is same with “Have ejection”. Choose “Tensile” button ... a serious oil spills or other abnormalities (such as the action is not reliable, noise, vibration, shock, etc.), should ...