1、拆下前铝件，拆下输出轴，在圆周和内控上加润滑脂。

1. Firstly, remove the front aluminum parts, remove the output shaft, and apply lubricating grease to the circumference and internal control.

2、然后抓住打几块前拉，拔出打击块组件，拔出后，在传动轴槽和两个钢球以及行星齿轮上加润滑脂或润滑油。

2. Then grab a few pieces and pull them forward, pull out the striking block component, and after pulling it out, add lubricating grease or oil to the drive shaft groove, two steel balls, and planetary gears.

3、加完按拆的顺序装上打击块，输出轴，垫片，前铝罩，拧紧螺丝。冲击钻加一般的黄油就可以了，若想好好保养使用就买耐高温320度以上的黄油。 在这两个地方加油：（1）减速箱加油 ，有塑料旋盖的那个地方。（2）插钻头的部位，伸缩部分。

3. Finally, install the striking block, output shaft, gasket, front aluminum cover in the order of disassembly, and tighten the screws. Just add regular butter to the impact drill. If you want to maintain and use it well, buy butter that can withstand high temperatures above 320 degrees. Add fuel in these two places: (1) Add fuel to the gearbox, where there is a plastic screw cap. (2) The part where the drill bit is inserted, the telescopic part.

使用电动扳手的注意事项：

Precautions for using an electric wrench:

1、在工具接通电源前，需要检查开关处于断开状态才能插入。

1. Before connecting the tool to the power supply, it is necessary to check that the switch is in the off state before inserting it.

2、确认现场所接电源与电动扳手所需要电压是否相符，是否接有漏电保护器。

2. Confirm whether the on-site power supply matches the voltage required for the electric wrench, and whether there is a leakage protector connected.

3、根据螺母大小选择匹配的套筒，并妥善安装。

3. Select the matching sleeve according to the size of the nut and install it properly.

4、电压过高过低均不宜使用。

4. Both high and low voltage should not be used.

5、不要将简体当作锤击工具使用。

5. Do not use simplified Chinese as a hammering tool.

6、不要在手摇杆上增加套杆或撬棒后加力。

6. Do not apply force after adding a sleeve or pry bar to the hand crank.

7、电动扳手的金属外壳需要可靠接地。

7. The metal casing of an electric wrench needs to be reliably grounded.