Answer: (1) The motor and electrical parts are on fire.
(2) There is a knocking sound, the noise increases significantly, and the cylinder body, cylinder head, screw and other parts are damaged.
(3) The vibration, temperature and current exceed the specified value.
(4) The cooling water is interrupted.
Only when the above special abnormal situations occur can the emergency stop button be manually pressed for emergency stop. Sudden power failure during operation or pressing the emergency stop button during loading may cause oil leakage in the air filter element.
