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24
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2) Adjusting the rotating shaft and the tension spring
3) Adjusting the clearance between the hook finger and the needle
Hook finger
0.1 to 1.0 mm
Eccentric pin
Needle
Setscrew
A
Lever
Tension
spring
Needle
Hook finger
Eccentric
pin
Tension spring
Setscrew
B
Rotating shaft
Gear
P
Standard Adjustment