冲击电动扳手主要是初紧螺栓的，它的使用很简单，就是对准螺栓扳动电源开关就行。电动扭剪扳手主要是终紧扭剪型高强螺栓的，它的使用就是对准螺栓扳动电源开关，直到把扭剪型高强螺栓的梅花头打断为止。电动定扭矩扳手既可初紧又可终紧，它的使用是先调节扭矩，再紧固螺栓。电动转角扳手主要也属于定扭矩扳手的一种，它的使用是先调节旋转度数，再紧固螺栓。电动角向扳手是一种专门紧固钢架夹角部位螺栓的电动扳手，它的使用和电动扭剪扳手原理一样。
The impact electric wrench is mainly used for initial tightening of bolts, and its use is very simple, which is to align the bolt and pull the power switch. The electric torque wrench is mainly used for final tightening of torque shear high-strength bolts. Its use is to align the bolt and pull the power switch until the plum blossom head of the torque shear high-strength bolt is broken. The electric fixed torque wrench can be used for both initial and final tightening. Its use involves adjusting the torque first and then tightening the bolts. Electric angle wrenches mainly belong to a type of fixed torque wrench, which is used to adjust the rotation degree first and then tighten the bolts. Electric angle wrench is a type of electric wrench specifically designed to tighten bolts at the angle of a steel frame, and its use is the same as that of an electric torsion wrench.
检验试验及保养
Inspection, testing and maintenance
1、电动扳手的金属外壳应可靠接地，其外壳应有定期检验试验合格证，并在有效期限内。
1. The metal shell of the electric wrench should be reliably grounded, and its shell should have a regular inspection and test certificate, which is within its validity period.
2、检查电动扳手机身安装螺钉紧固情况，若发现螺钉松了，应立即重新扭紧，否则会导致电动扳手故障。
2. Check the tightening of the installation screws on the body of the electric wrench. If the screws are found to be loose, they should be immediately re tightened, otherwise it may cause the electric wrench to malfunction.
3、检查手持电动扳手两侧手柄完好，不开裂可破损，安装牢固
3. Check that the handles on both sides of the handheld electric wrench are intact, not cracked or damaged, and installed firmly
注意事项
matters needing attention
1、确认现场所接电源与电动扳手铭牌是否相符。是否接有漏电保护器。
1. Confirm whether the on-site power supply matches the nameplate of the electric wrench. Is there a leakage protector connected.
2、根据螺帽大小选择匹配的套筒，并妥善安装。
2. Select a matching sleeve based on the size of the nut and install it properly.
3、在送电前确认电动扳手上开关断开状态，否则插头插入电源插座时电动扳手将出其不意地立刻转动，从而可能招致人员伤害危险。
3. Before power transmission, confirm that the switch on the electric wrench is disconnected. Otherwise, when the plug is inserted into the power socket, the electric wrench will unexpectedly turn immediately, which may cause a risk of personal injury.
4、若作业场所在远离电源的地点，需延伸线缆时，应使用容量足够，安装合格的延伸线缆。延伸线缆如通过人行过道应高架或做好防止线缆被碾压损坏的措施。
4. If the workplace is located far away from the power source and it is necessary to extend the cable, a qualified extension cable with sufficient capacity should be used and installed. If the extension cable passes through a pedestrian walkway, it should be elevated or measures should be taken to prevent the cable from being crushed and damaged.
5、尽可能在使用时找好反向力距支靠点，以防反作用力伤人。
5. Try to find a good support point for the reverse force distance during use to prevent injury caused by the reverse force.
6、使用时发现电动机碳火花异常时，应立即停止工作，进行检查处理，排除故障。此外碳刷必须保持清洁干净。
6. When abnormal carbon sparks are found during use, the motor should be immediately stopped for inspection and troubleshooting. In addition, the carbon brush must be kept clean.
7、站在梯子上工作或高处作业应做好高处坠落措施，梯子应有地面人员扶持。
7. Standing on a ladder or working at heights, measures should be taken for falling from height, and the ladder should be supported by ground personnel.
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