1: Die for a long time after use must be grinding mouth, after grinding blade surface must be demagnetized, not with magnetic, or prone to plugging material.

2: spring and other elastic parts in the process of using the spring most easily damaged, often fracture and deformation phenomenon. The approach taken is replaced, the replacement process, be sure to pay attention to the specifications and models of spring, spring specifications and types by color, outer diameter and length of the three to confirm, only in the case of the three are the same may be replaced.

3: die in the process of using punch prone to broken, bent and gnawed the phenomenon of shock is generally bad eating. Punch and punch sets damage generally use the same specification for replacement parts. The main parameters of the working part of the punch size, size, length and installation.

4: fastening parts, check the fastening parts are loose, damage, the way is to find the same specifications for the replacement parts.

5: the pressing parts such as pressure plate, rubber, unloading parts such as stripper, pneumatic ejector etc.. Maintenance and inspection of parts of the parts of the relationship and there is no damage to the damaged part of the repair, pneumatic roof material to check whether there is no leakage phenomenon, and to take measures to specific circumstances. Such as tracheal damage to be replaced.