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Chisel no2

applying：
1. The length of chisels for chipping hammer C4,C6,C7 are 300-1200mm.

Checking and handling of pick brazing
1, pick soldering tip should be sharp, drill rear flat no gap and drill perpendicularto the central axis;
2, drill steel shank with pneumatic picks the right firm;
3, the need to obtain enough solder and spare soldering of transcription;
4, pick tip stuck, but rocker pneumatic picks or picks around the tip of coal and rock back and forth, pulled out after loosening;
5, dull pick tip in time lost