− 32 −
1) Turn the handwheel by hand. When needle bar 笊
has gone up, adjust so that lower marker line 笆
engraved on the needle bar aligns with the bottom
end of the needle bar bushing 笳 , lower.
2) Loosen setscrew 笊 in the driver. Open inner hook
pressers 笆 to the right and left, and remove inner
hook presser 笳 .
At this time, be careful not to let inner
hook 笘 come off and fall.
2. Adjusting the needle-to-shuttle relation
笘
笳
笆
笊笆
笳
Relation between needle and engraved lines
笊
笆
笳
笊
笆
笳
WARNING :
Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the
sewing machine.
3) Adjust so that the blade point of inner hook 笘 aligns
with the center of needle 笙, and that a clearance
of 0 mm is provided between the front end of the
driver and the needle as the front end face of driver
笞 receives the needle to prevent the needle from
being bent. Then tighten setscrew 笊 of the driver.
4) Loosen setscrew 笵 of the shuttle, and adjust the
longitudinal position of the shuttle. To do this
adjustment, turn shuttle race adjusting shaft 笨
clockwise or counterclockwise to provide a 0.05 to
0.1 mm clearance between needle 笙 and the blade
point of inner hook 笘 .
5) After adjusting the longitudinal position of the
shuttle, further adjust to provide a 7.5 mm clearance
between the needle and the shuttle by adjusting
the rotating direction. Then tighten setscrew 笵 of
the shuttle.
Apply a small amount of oil to race section
笶 and oil wick 筐 , and use the sewing
machine after an extended period of
disuse or cleaning the periphery of hook
portion.
0.05 to 0.1 mm
7.5 mm
笙
笘
笵
笨
0 mm
0 mm
笊
笙
笘
笞
笶
筐
筐
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