First, the quality of the grinding wheel to be safe when installing detection method, Nepal velvet hammer (you can also use a pen) tapping the side wheel, crisp sound is no problem.

(1) positioning
Grinding machines installed in any location, is the question we must first consider the installation process, only selected reasonable and appropriate location, we can carry out other tasks. Grinder prohibit installed facing or near the equipment and the operator has often been in the past where, generally larger wheel shop should set up a dedicated room. If indeed due to terrain limitations plant can not set up a dedicated wheel room, should be installed in the front wheel drive is not less than 1.8m high protective baffle and baffle requires strong and effective.
(2) balance
Wheel unbalance wheel mainly by manufacturing and installation inaccuracies, the rotary shaft of the grinding wheel does not coincide with the center of gravity caused. Harm imbalance mainly manifested in two aspects, one in the high-speed rotating grinding wheel, causing the vibration, could easily lead to the workpiece surface polygonal oscillation marks; hand, unbalanced spindle vibration and accelerated bearing wear, serious when will cause wheel breakage, or even cause an accident. Therefore, requiring great or greater installed directly on the card should be carried out late static balance wheel in the plastic trim or discovered after an imbalance in the work, should be repeated static equilibrium 200mm sand office.
(3) matching
Matching problem mainly refers to the wheel mounting chuck logistic problems. According to standards, wheel diameter not less than chuck is mounted sand office diameter of 1/3, and the corresponding provisions of wheel wear to a larger diameter than the diameter of 10mm chuck should be replaced with a new wheel. Thus there is a matching problem chuck and grinding wheel, otherwise it will be the case, "Mara car" wasteful equipment and materials; "small horse cart" do not meet the safety requirements, could easily lead to accidents. Therefore, a reasonable match chuck and grinding wheel, one can save the device, cut about materials; hand and meet the requirements for safe operation. Further, between the wheel and the installation of a larger diameter than the chuck should chuck diameter 2mm, 1mm ~ 2mm thick cushion.
(4) protection issues
Grinder shield is the most important protective device, its role is: When the wheel for some reason destruction at work, covering the wheel fragments can effectively ensure the safety of personnel. The shape of a circular wheel guard and square, which must not exceed the maximum opening angle of 90 °; shield material is not less than 415N/mm2 tensile strength of steel. When replacing the new wheel, protective cover installed to a solid and reliable, and the guard shall not disassemble or discarded.
Quiet block panel is one of the main protective accessories grinders, protective cover over the opening in the horizontal axis is greater than or equal to 30 must be set for this device (when it's main function is to block the grinding process of flying quiet to avoid harming operator it being attached to the open end of the shield, a width greater than the width of the grinding wheel guard, and should be firmly secured in a protective cover. Moreover, the circumferential surface of the grinding wheel requires baffle gap should be less than 6mm.
(5) the bracket problem
Bay is one of the commonly used grinder attachment, according to the provisions wheel diameter of 150mm or more grinders must set the adjustable bracket. The distance between the wheel and bracket should be smaller than the smallest form factor to do is grind the workpiece inch to 1/2, but the maximum should not exceed 3mm.
(6) Grounding
Grinder using power lines, so the equipment enclosure must have a good grounding protection device. This is also one of the important factors that could easily lead to accidents..........