Safety operation procedures of grinder?

1, according to the instruction manual of grinding wheel, select the grinding wheel which is consistent with the spindle revolution of grinder. 2, the new grinding wheel should have the factory certificate, or check the inspection mark. If cracks are found in the quality, hardness, granularity and appearance of the grinding wheel before installation, it cannot be used. 3. When installing the grinding wheel, the clearance between the inner hole of the grinding wheel and the spindle should not be too tight. According to the technical requirements of loose fit, it is generally controlled at 0.05. /FONT & gt； 0 0. 10/0mm. Flanges should be installed on both sides of the grinding wheel, and their diameter should not be less than one third of the diameter of the grinding wheel. A washer shall be provided between the grinding wheel and the flange. 5, tighten the nut, want to use a special wrench, not too tight, it is forbidden to hammer with hard objects, to prevent the grinding wheel from being broken. 6. After the installation of grinding wheel, protective cover, baffle and bracket shall be installed. The clearance between the baffle and the bracket and the grinding wheel shall be kept at 1? /FONT & gt； Within 3 mm, slightly lower than the center of grinding wheel. 7. When the newly installed grinding wheel is started, don't be too hasty. First, check by inching. After 5? /FONT & gt； Test run 10 minutes before use. 8. Don't use too much force during the initial grinding to avoid accidents caused by uneven stress on the grinding wheel. 9. It is forbidden to grind copper, lead, wood, etc. to prevent the grinding wheel from clogging. 10, when sharpening a knife, people should stand on the side of the grinder, and two people are not allowed to sharpen a knife on one grinding wheel at the same time. 1 1. Knives with long sharpening time should be cooled in time to prevent burning. 12. Regularly trim the balance of the grinding wheel surface to keep it in good condition. 13, polishing personnel should wear protective glasses. 14. The vacuum cleaner must be in good condition and effective. If a fault is found, it should be repaired in time, otherwise the grinding should be stopped.

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