Wear protective masks (or face shields) and glasses when working.
Before working, check whether the grinding wheel is damaged, whether the safety protection device is intact, and whether the ventilation and dust removal device is effective.
When installing, we should pay attention to the tightenth degree of the nut. It should be pressed tight to the movement of the grinding wheel, and it should not be easy to slide. When there are many compressing screws, it should be gradually tightened in the diagonal order.
After the wheel is installed, the protective cover must be re loaded and tested. The straight grinding wheel should be turned for 5 minutes. When the wheel is rotated, no obvious vibration is allowed.
When polishing and polishing, we should start the suction device first, hold the workpiece firmly, not be too hard, not to use the lever push element, strictly prohibit the operation of the wheel on the front of the grinding wheel, in order to prevent the grinding wheel from breaking the person. It is not a grinding wheel specially used for face grinding. It is forbidden to polish and polish with the end face.
The use of a hand-held electric grinder for polishing and polishing must have a solid protective cover and a protective zero line, or a leakage protector, and comply with the following safety operation rules for the electric hand grinding wheel.
When two or more people are polishing and polishing at the same time, they are not allowed to work in the same direction at the same time to prevent accidents.
The concave and convex parts of the workpiece should be lightly polished and polished. No sharp force must be exerting. The edges and corners of the workpiece should not be worn to prevent the grinding wheel from breaking and hurting people.
After the work is finished, the power shall be cut off before the wheel is stopped.