1. The fall arrester must be hung high and low, and should be hung on a structure with a strong blunt edge above the user when used.

2. Before using the fall arrester, the safety rope and appearance should be checked, and the lock should be tried 2~3 times (test lock method: the safety rope should be pulled out at a normal speed should make a "click" and "click" sound; pull the safety rope hard, it should be able to lock. The safety rope should be automatically retracted into the device when you let go, if the safety rope is not fully recovered, just pull out some safety ropes slightly). If there is any abnormality, discontinue use.

3. When using the fall arrester for tilting operations, in principle, the inclination should not exceed 30 degrees, and whether it can hit the surrounding objects above 30 degrees must be considered.

4. The key parts of the fall arrester have been treated with special treatments such as wear resistance and corrosion resistance, and have been strictly debugged, and no lubricant is required for use.

5. It is strictly forbidden to use the safety rope kink. It is strictly forbidden to disassemble and modify. And it should be placed in a dry and dusty place.