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18.旋梭装卸（图 25）/ Hook loading and unloading（Fig 25）
先将针杆上升到最高位置，拆下针板，取下
机针和梭心套。旋下定位勾螺钉（C）, 把旋梭定
位勾（A）取下。再旋松旋梭螺钉（D）。 使旋梭
在它的转动轴上能够自由转动，接着用手转动上
轮，使送料牙架走向高处。到此，可以用手去旋
转旋梭，使它让过牙架徐徐取出。安装旋梭过程
是上述过程的回复。
旋梭定位勾的安装位置应是旋梭定位勾（A）
的勾尖侧面与机针（B）的侧面应成一致。另外其
两侧面之间隙为0.5～0.7毫米。
First raise the needle bar to the highest
position, remove the needle plate, and remove the
needle and bobbin case. Unscrew the positioning
hook screw (C), and take off the hook positioning hook (A). Loosen the hook screw (D) again. Make the rotary
hook rotate freely on its rotating shaft, and then turn the upper wheel by hand to make the feeding frame move
to a high place. At this point, you can rotate the hook by hand to make it slowly take out the tooth frame. The
hook installation process is a response to the above process.
The installation position of the hook positioning hook should be such that the side of the hook tip of the hook
positioning hook (A) and the side of the needle (B) should be consistent. In addition, the gap between the two
sides is 0.5 to 0.7 mm.
19.送布牙安装（图 26、27）/ Feed dog installation（图 26 27）
a.当送布量最大，送布牙（A）前端靠近针板
槽前侧时,送布牙前端与针板槽前侧的间距为1.5
毫米,这是标准的送布牙安装位置。
b.调节送布牙位置时，先让送布牙运动至针
板最前侧停止，然后旋松送布轴曲柄螺钉（A）
（见27b），将牙架（B）按图27a所示箭头方向移
动，以调节位置，调节好后，再把螺钉（A）旋
紧。
a. When the feed amount is the largest and the
front end of the feed dog (A) is close to the front side
of the needle plate groove, the distance between the
front end of the feed dog and the front side of the
needle plate groove is 1.5 mm. This is the standard
feed dog installation position.
b. When adjusting the position of the feed dog,
first let the feed dog move to the front side of the
needle plate and stop, then loosen the feed shaft
crank screw (A) (see Figure 29b), and set the bracket
(B) as shown in Figure 29a Move in the direction of
the arrow to adjust the position. After adjustment,
tighten the screw (A).
B
A
B
a
12
0.5-0.7mm
D
C
A
1.5mm
A
b
25
26
27
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