2. Users must be familiar with the structure, performance and maintenance knowledge of the grinder.
3. According to the instructions of the grinding wheel, select the grinding wheel that is consistent with the spindle revolution of the grinder. New grinding wheels shall have factory certificate or inspection mark. If cracks are found in the quality, hardness, granularity and appearance of the grinding wheel before installation, it cannot be used.
4, grinder must be installed firmly and reliably, fastening screws are not allowed to be loose or damaged.
5. The flange size of grinding wheel must be the same, and its diameter shall not be less than 1/3 of the diameter of grinding wheel. There must be an elastic washer between the grinding wheel and the platform.
6, tighten the nut, want to use a special wrench, not too tight, it is forbidden to use hard hammer, in case the grinding wheel is broken.
7. After installing the grinding wheel, install the protective cover.
8. When the newly installed grinding wheel is started, don't be too hasty. First, check by inching. It can be used after 5 minutes to 10 minutes. Interns are not allowed to change grinding wheels.
9, grinding wheel starts, idling for 2~3 minutes, before use.
10, grinding wheel wobbles, there is no protective cover, tool rest is worn, and it is not allowed to be used if it is not firmly clamped. The distance between the grinding wheel and the tool rest must be less than 3mm.
1 1. When grinding workpieces or tools, it is forbidden to use excessive force or impact the grinding wheel. It is forbidden to grind workpieces, nonferrous metals, nonferrous metals, etc. They are too big to be controlled by small hands on the grinder.
12, it is strictly prohibited for two people to work on the same grinding wheel at the same time, nor to grind the workpiece on the side of the grinding wheel.
13, grinding, workers are not allowed to stand in front of the grinding wheel, must wear protective glasses and dust masks. Workpieces polished for a long time should be cooled in time to prevent scalding. It is forbidden to wrap the workpiece with cotton yarn for grinding.
14. Regularly trim the balance of the grinding wheel surface to keep it in good condition.
15, the grinding wheel should be replaced immediately when the grinding loss reaches the specified size, otherwise it is prohibited to use.
16. Stop running when checking, maintaining and adjusting the gap.
17, grinder must be equipped with good dust collection equipment, the installation position is easy to operate, and must have good lighting device, it is strictly prohibited to work in a dark and narrow working environment.
18, the public grinder must be managed by special personnel, and all grinding wheels are not allowed to get wet. The grinding wheel should be inspected before use, and it can only be used if it is qualified.
19, after grinding, turn off the power supply of the grinder in time.