1. Mechanical installation should be solid, keep horizontal position;
2. The metal structure can not have open welding,and crack;
3. Institutions should be complete, parts should be complete, connection should be reliable;
4. Appearance should be clean, and there should be no oil dirties and obvious rust;
5. Transmission system should be smooth operation, there should be no abnormal shock, vibration, crawling, channeling, noise, overtemperature and overpressure; Drive belt should be in good condition.
6. Operating system should be sensitive and reliable, configured action buttons, hand wheel, lever should be complete, the reaction should be sensitive. and instructions in the instrument data should be accurate;
7. The guide rail and working face should not be serious wear, bruised,and deformation;
8. cutting tool installation should be solid, positioning should be accurate and effective;
9. dust device should be in good condition, work should be reliable.
