1. Confirm whether the power supply on the site is consistent with the electric wrench nameplate. Whether there is a leakage protector.
2. Select the matching sleeve according to the size of the nut and install it properly.
3. Confirm that the electric wrench is turned on and cut off the state before sending the electric wrench, otherwise the electric wrench will rotate immediately when the plug is inserted into the power socket, which may cause the personnel to hurt the danger.
4. If the place where the work ground is away from the power supply, when the cable is required, the capacity should be sufficient and the qualified extension cable should be installed. If the extension cable should be elevated through the pedestrian aisle or take measures to prevent the cable from being crushed and damaged.
5. Find the backbone of the reverse force when using it as much as possible to prevent the opposite effect from hurting people.
6. When using the motor to be abnormal in carbon sparks, work should be stopped immediately, checking and processing, and eliminating failures. In addition, the carbon brush must be kept clean.
7. Standing on the ladder or work at a high place should be taken to the high place to fall, and the ladder should be supported by ground personnel.
