1. After long time use, the die must be sharpened. After grinding, the cutting edge must be demagnetized, not magnetic, or easy to be blocked.

Spring and other elastic parts are the most easily damaged during use, usually breaking and deforming. To take is to change, it is important to note that in the process of change of the specifications of the spring and models, the specifications of the spring and model identified by color, diameter and length of the three, only under the condition of the three are the same can be replaced.

3. In the process of mold use, the punch can break, bend and nibble, and the rush is generally nibbled. The damage of the punch and punching sleeve is usually replaced with the same specification. The main parameters of punch are part size, part size, length dimension, etc.

4. Tighten the parts and check whether the fastening parts are loose or damaged. The solution is to find the same parts for replacement.

5. Pressure material parts such as pressing plate and uli glue, unloading parts such as stripper plate, pneumatic top material, etc. Check the parts and parts of the parts in the maintenance, repair the damaged part, the pneumatic top material check for air leakage, and take measures for the specific situation. If the tracheal damage is replaced.