1. The size of the wrench of the adjustable wrench should match the size of the nut, and a small wrench should not be used to add a casing.

2. It is forbidden to hammer into the nut during installation to prevent damage to the nut thread.

3. The friction surface of the processed component is not allowed to be stained with oil, dirt, etc. during installation.

4. The friction surface of the module should be kept dry during installation and should not be operated in the rain.

5. The electric wrench should be tested regularly when in use, to ensure the accuracy of the torque, and operate in the correct tightening sequence.