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Standard Adjustment
Standard Adjustment
(9) Adjusting the bobbin thread winder components
1) Position of the bobbin winder driving wheel
Feed bracket
(10) Adjusting the presser components
1) Adjusting the presser cylinder knuckle
藺 When the presser goes up (when the cylinder shrinks to the utmost.), adjust the length from the rear
end of the presser cylinder to the front end of the cylinder knuckle to 87 mm.
笊
87 mm
Cylinder knuckle
Presser cylinder
4.3 mm
(LK-1942 : 12.7 mm)
(LK-1941 : 54.5 mm)
2 Arm cover installing face
3 Setscrew (2 pcs.)
1 Bobbin winder driving wheel
Main shaft
Hand pulley gear
Intermediate presser cam
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