1. During the normal use of the production line, due to normal or accidental wear, as well as various abnormal phenomena occurring during the operation of the production line, the production line must be immediately stopped for use and repaired in time to avoid major accidents. The

   2, non-professional maintenance personnel or without the permission of professional maintenance personnel can not repair their own. The

   3. When repairing the circuit, if necessary, the person in charge of the production line may be required to appoint personnel to wait at the electric box to prevent others from opening the production line and hang warning signs. At the same time, the power must be turned off for maintenance and no live operation.