As a common power tool, electric wrenches can only be used correctly to ensure work efficiency and safety. The following section describes the preparations, operation procedures, and precautions for use.
Before using the electric wrench, carefully inspect the shell for damage, cracks, and the power cord for bare and worn conditions. If these problems are present, continued use may lead to a risk of electric shock or tool failure. Before using the electric wrench, carefully inspect the shell for damage, cracks, and the power cord for bare and worn conditions. If these problems are present, continued use may lead to a risk of electric shock or tool failure. In the case of cordless electric wrenches, check whether the battery level is sufficient. Insufficient power will not only affect the torque output of the wrench, but may also cause interruptions in work. If it is a plug-in electric wrench, make sure that the plug is inserted stably, that the power cord is not tangled or damaged, and that the voltage is consistent with the rated voltage of the tool. Install the selected sleeve on the drive shaft of the electric wrench, generally fix it by pressing the lock or rotating the ferrule, and gently pull the sleeve after installation to confirm that it is stable and does not shake. According to the specifications and tightening requirements of nuts and bolts, the torque can be adjusted to the appropriate value by the torque adjustment knob or setting button of the electric wrench. Different models of electric wrenches have slightly different adjustment methods, so be sure to refer to the product manual for accurate operation. Slip the sleeve over the nut or bolt, keeping the electric wrench perpendicular to the work surface, and then press the trigger to start the tool. Turning the trigger clockwise is a tightening operation, and counterclockwise is a release operation. During operation, the force should be applied evenly, avoid shaking or tilting the wrench, and ensure that the sleeve is always tightly engaged with the nuts and bolts.
