电动扭矩扳手的使用方法
Usage of electric wrench
①电动扳手是定扭矩的，因此作旋紧用时必须注意扳手的使用范围，以防柠断螺栓。
① The electric wrench has a fixed torque, so it is necessary to pay attention to the use range of the wrench when it is used for tightening, so as to prevent the bolt from breaking.
②一般装配一个螺纹件，冲击时间为2～3s，不要经常超过5S。
② Generally, a threaded part is assembled, and the impact time is 2-3s, not more than 5S.
③电压过高过低均不宜使用。空转时，若有火花、响声等异常时，要排除故障后再使用。变换转向时，要先用电源开关切断电源，再扳动正反转开关，以保护正反转开关。
③ The voltage is too high and too low. When idling, if there are sparks, noises and other abnormalities, it shall be used after troubleshooting. When changing the steering direction, first cut off the power supply with the power switch, and then pull the forward and reverse switches to protect the forward and reverse switches.
4Four
电动扳手的使用和操作注意事项
Use and operation precautions of electric wrench
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 power supply connected on site is consistent with the nameplate of electric wrench. Whether leakage protector is connected.
2、根据螺帽大小选择匹配的套筒，并妥善安装。
2. Select the matching sleeve according to the nut size 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, make sure that the switch on the electric wrench is disconnected, otherwise the electric wrench will turn immediately when the plug is inserted into the power socket, which may cause 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 work place is far away from the power supply and the cable needs to be extended, the cable with enough capacity shall be used and qualified extension cable shall be installed. If the extension cable passes through the sidewalk, it shall be elevated or measures shall be taken to prevent the cable from being damaged by rolling.
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 the distance between the reverse force and the supporting point when using, so as to prevent the reaction force from hurting people.
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 the carbon spark of the motor is found to be abnormal during use, the motor shall be stopped immediately 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. Measures for falling from height shall be taken when working on ladders or working at heights, and ladders shall be supported by ground personnel.
电动扳手的检验试验及保养
Inspection, test and maintenance of electric wrench
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 shall be reliably grounded, and the shell shall be provided with the certificate of regular inspection and test, which shall be within the 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 fastening condition of the mounting screw of the electric wrench body. If it is found that the screw is loose, it should be re tightened immediately. Otherwise, the electric wrench will fail.
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 hand-held electric wrench are intact, not cracked or damaged, and firmly installed
