更換套筒的方法：
Method of replacing sleeve:
注：a換或安裝內外套筒之前，一定要關上工具上的開關，并拔下電源插頭。
Note: a Before replacing or installing the inner and outer sleeves, be sure to turn off the switch on the tool and unplug the power plug.
b換或安裝內外套筒時，注意不要讓異物進到工具內。
B. When replacing or installing the inner and outer sleeves, be careful not to let foreign matters enter the tool.
M20外套筒和內套筒，出廠時裝備在上。如果需要其它尺寸的套筒，請按下述指示進行更換。
M20 outer sleeve and inner sleeve are equipped on the machine when leaving the factory. If other sizes of sleeves are required, please replace them according to the following instructions.
1擰松固定外套筒的兩個螺絲,外套筒和內套筒將被裝在工具內的彈簧推出。
1 Loosen the two screws fixing the outer sleeve, and the outer sleeve and the inner sleeve will push out the spring installed in the tool.
2將推桿按下從外套筒中取下內套筒。拆卸內套筒時，注意不要使其掉落。不要從工具上卸下內套筒彈簧，頂桿和頂桿彈簧。
2 Press the push rod to remove the inner sleeve from the outer sleeve. Take care not to drop the inner sleeve when removing it. Do not remove the inner sleeve spring, ejector rod and ejector rod spring from the tool.
3握住內套筒，竟推桿朝上，將外套筒套在內套筒上，然后將推桿按下以固定內套筒。
3 Hold the inner sleeve with the push rod facing up, put the outer sleeve on the inner sleeve, and then press the push rod to fix the inner sleeve.

4將外套筒和內套筒插入工具內，同時按順時針和逆時針方向交替轉動內套筒，直到外套筒與工具間沒有間隙為止，參照下圖，然后牢牢擰緊兩個螺絲。
4 Insert the outer sleeve and the inner sleeve into the tool, and turn the inner sleeve clockwise and counterclockwise alternately until there is no gap between the outer sleeve and the tool. Refer to the figure below, and then firmly tighten the two screws.
5更換套筒時，要認真各部位的異物。
5 When replacing the sleeve, carefully remove the foreign matters in each part.
注：用標準套筒不能擰緊的狹小場所作業(yè)時，可到生產(chǎn)廠家訂做特殊套筒，并提供相應的技術數(shù)據(jù)。
Note: When working in a narrow place where the standard sleeve cannot be tightened, special sleeves can be ordered from the manufacturer and corresponding technical data shall be provided.
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