1, grinders must be smooth and reliable operation, the amount is not excessive wheel wear and use within the validity period;

2, grinders shelf should have a certain rigidity reinforced concrete cutting wheels and stability (installed in the ground to prevent the tightening of vibration);
3, grinding machine is running, there should be no noticeable runout;
4, the rotational speed of the wheel is not more than the circumference of the wheel safe speed (sorry the table after it);
5, grinding wheel wear and must be replaced to a certain extent;
6, wheel diameter wear limit Size:
7, wheel wear limit the size of the installation in the form of
8, stick on a mandrel of diameter d d +2
9, with a screw diameter of the screw mounting D0 D0 +2
10, with a flange diameter D3 D3 +10 tile cutting wheel installation
11, PE must first reliable connection, control electrical appliances comply with the relevant provisions of metal-cutting machine tools. (At least to switch sensitive, reliable :))