一般地，在使用過程中，如果發(fā)現螺栓梅花頭吐不出來，說明扳手的套筒已經磨損太厲害了，梅花頭卡在里面了，這時候應該更換新的套筒。
Generally, in the process of use, if it is found that the box head of the bolt can not spit out, it means that the socket of the wrench has been worn too much, and the box head is stuck in it. At this time, a new socket should be replaced.
一般地，在使用過程中，如果發(fā)現電機下面有火花，說明該換碳刷了。如果火花非常大，說明電機轉子已經燒了。
Generally, in the process of using, if there is spark under the motor, it means that it is time to change the carbon brush. If the spark is very large, the motor rotor has been burned.
一般地，在使用過程中，如果發(fā)現電機轉，而套筒不轉，這說明某個齒輪磨禿了。
Generally, in the process of use, if the motor turns, but the sleeve does not turn, it means that a gear is bald.
一般地，在使用過程中，如果發(fā)現電機聲音”嗡嗡...”地響，可能是電機軸承壞了。
Generally, in the process of using, if the motor sounds "buzzing...", it may be that the motor bearing is broken.
一般地，在使用過程中，如果發(fā)現電機聲音異常，或者機械部分聲音“霹靂咔嚓...”異響，那么應該馬上停止使用，聯系廠家銷售代表。
In general, in the process of use, if you find that the motor sound is abnormal, or the mechanical part of the sound "Thunderbolt click..." abnormal sound, then you should immediately stop using, contact the manufacturer's sales representative.
一般地，如果通電后，而電機不轉，請先檢查電源及電源線和開關，確保線路部分正常。再檢查碳刷是否短缺。再檢查電機部分。
Generally, if the motor doesn't run after power on, please check the power supply, power line and switch first to make sure the circuit is normal. Check again if there is a shortage of carbon brushes. Finally, check the motor part.
一般地，維修時，拿到工具后，先外觀檢查，判斷線路部分、碳刷、各個配件是否正常。再通電檢查。
In general, when repairing, after getting the tools, check the appearance first to judge whether the circuit part, carbon brush and various accessories are normal. Power on again to check.
如果要打算拆開機器，請先斷電，并取出碳刷，再開始拆機。
If you want to disassemble the machine, please turn off the power and take out the carbon brush before disassembling the machine.
1.沖擊電動扳手：主要是初緊螺栓的，它的操作簡單，就是對準螺栓扳動電源開關就行。
1. Impact electric wrench: it is mainly used to initially tighten the bolt. Its operation is simple, that is, to align the bolt and pull the power switch.
2.電動扭剪扳手：主要是終緊扭剪型高強螺栓的，它的使用就是對準螺栓扳動電源開關，直到把扭剪型高強螺栓的梅花頭打斷為止。
2. Electric twist shear wrench: it is mainly used to tighten the twist shear high-strength bolt. Its use is to align the bolt and pull the power switch until the quincunx end of the twist shear high-strength bolt is broken.
3.電動定扭矩扳手：既可初緊又可終緊，它的使用是先調節(jié)扭矩，再緊固螺栓。
3. Electric constant torque wrench: it can be used for both initial tightening and final tightening. Its use is to adjust the torque first and then tighten the bolts.
4.電動轉角扳手：主要也屬于定扭矩扳手的一種，它的使用是先調節(jié)旋轉度數，再緊固螺栓。
4. Electric angle wrench: it mainly belongs to a kind of constant torque wrench. Its use is to adjust the degree of rotation first, and then tighten the bolt.
5.電動角向扳手：是一種專門緊固鋼架夾角部位螺栓的電動扳手，它的使用和電動扭剪扳手原理一樣。
5. Electric angle wrench: it is a kind of electric wrench specially used to fasten the bolts in the angle part of the steel frame. Its use principle is the same as that of the electric torsional shear wrench.
