1. Before using the grinder, please carefully check the protective cover and auxiliary handle, which must be intact and free from looseness.

2. Pay attention to whether there is damp phenomenon and corner missing phenomenon before installing the grinding wheel piece, and the installation must be firm without looseness. It is forbidden to beat the grinding wheel clamping nut with other external tools without special tools.

3. Before plugging in the plug, make sure that the grinder switch is in the off position.

4. The power socket used must be equipped with leakage switch device, and check whether the power cord is damaged.

5. Before operating the grinder, you must wear protective glasses and dust masks, and you are not allowed to work without protective facilities.

6. Before use, it must be turned on for trial operation to see whether the grinding wheel is running smoothly and normally, and it can be used normally only after it is confirmed.

7. During operation, the grinding direction of the grinder is strictly prohibited to the surrounding staff and all inflammable and explosive dangerous goods, so as not to cause unnecessary harm. Keep the workplace clean and tidy. Use it correctly to ensure personal and property safety.

8. Clamp the workpiece in advance, and the inclination angle between the grinding plate and the workpiece is about 30 to 40 degrees. Do not press, tilt or shake hard when cutting, and properly control the cutting strength according to the material. Keep the cutting piece parallel to the sheet metal incision, and do not press the cutting sideways.

9. When the grinding wheel works for a long time, the body temperature is above 50 degrees, and you feel hot, please stop immediately and use it after natural cooling.

10. When replacing the grinding wheel, you must turn off the power supply or unplug the power cord before replacing the grinding wheel. Be sure to use special tools to disassemble and assemble, and it is forbidden to knock and knock.

1 1. Regularly check whether the bearings, gears and other parts of the transmission part are flexible and intact, and add lubricating oil to the rotating part in time to prolong the service life of the grinder.

13. When using the grinder, remember not to use force too hard, but to use force slowly and evenly to avoid the phenomenon that the grinding wheel blade breaks. If the grinding wheel is stuck, lift the grinding wheel immediately to avoid the grinding wheel being burnt out or the potential safety hazard caused by the broken grinding wheel.

12. It is forbidden to use grinder without safety cover. It is strictly forbidden to use a grinder with a loose protective cover that cannot be fastened, and it will be repaired by a special person in time. It is strictly forbidden for the parties to dismantle it without authorization.

Hand-held electric grinder safety operation procedures:

A, hand drill handle and power cord should be regularly checked, keep good insulation, wire must be overhead, wear insulating gloves when operating. Second, when working high above the ground, special scaffolding should be set up or hang up your seat belt. Pay attention to the operation before, after and around to prevent falling.

Three, before work, check whether the protective facilities of the transmission part are firm, and whether the wire connector and grounding electrode are in good condition.

Four, check the mechanical parts, such as screws and grinding wheel splint for looseness, grinding wheel for cracks.

Five, wear glasses at work, to prevent flying sand, Mars eye injury, are not allowed to wear gloves when grinding the workpiece. It is forbidden to face the grinding wheel and stand on both sides of the grinding wheel.

Six, before the official operation, must first try idling, wait for normal rotation before use. The grinder is not allowed to be used under the following circumstances:

1, when the grinding wheel is not round, the grinding wheel is too thin or the height of the grinding wheel blade exposed from the edge of the splint is less than 25mm.

2. When the sound is abnormal during operation;

3. When the grinder grinds an oversized workpiece;

4. When grinding the violently vibrating workpiece;

5, grinding non-metallic workpiece, cemented carbide or soft metal.

Seven, grinding wheel installation, are not allowed to use a hammer, grinding wheel and shaft joint should add paper pad, bolt end should add bolts or two nuts to tighten and check regularly. Turn on the switch when removing the grinding wheel.

Eight, grinding wheel must be installed not less than 180 degrees protective cover.

Nine, grinding work, the workpiece should be slowly close to the grinding wheel, not too hard or impact.

Ten, grinding wheel is not allowed to reverse, power failure should turn off the switch.

Eleven, after the work should be cut off the power supply, will work within the scope of clean.