◆ Clearance between the needdle and the shuttle driver
The clearance between the needle and the needle guide
of the shuttle driver has already been adjusted to the ran
of 0 through 0.05 mm.
To adjust the clearance between the needle and the shut
-le driver:
1. Loosen two screws ⑮, and remove thrust collar ⑭ of
the feed rock driving shaft on the feed bracket.
2. Loosen two screws ⑰, and move thrust collar ⑯ of th
feed rock shaft.
3. Loosen two screws ⑱ in the shuttle driving shaft thrus
collar, screw ⑲ in the shuttle driving shaft front bushin
and small pendulum clamping screw ⑳.
4. Adjust the clearance by moving shuttle driving shaft fro
bushing
21
to the left and right.
5. After the adjustment has been completed, secure the
shuttle driving shaft thrust collar and the small pendulu
making sure there is no axial play of the shuttle driving
shaft.
6. Finally, secure the respective thrust collars, making su
there is no play in the feed driving shaft and the feed
rock shaft.
The standard for adjusting the clearance between the needle
and the blade point of the shuttle
Use a standard Schmetz 794-Nm 230 needle.
1. Adjust the clearance Ⅴ between the convex section o
needle
22
and shuttle driver
23
to 0.
2. Align the needle center with the blade point of the shu
ttle
24
and press the Ⅵ section of the needle against
the shuttle driver.
3. Adjust the clearance Ⅶ to a minimum, with the needle
pressed against the shuttle driver, making sure that the
needle does not contact the blade point of the shuttle.
・ By this adjustment the needle-to-shuttle blade point
clearance will be 0.25 ~0.35 mm.
⑯
⑰
⑭
⑮
⑳
21
⑲ ⑱
22
23
24
Ⅴ
Ⅵ
Ⅶ
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Summary of Contents for CS-471
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