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13. Adjustment of bobbin winder
[Position of disengaging bobbin winder]
How to adjust
1. Set bobbin presser 1 to the position where it is 16 mm away from bobbin winding shaft 2.
2. Tighten bobbin winder controller asm. with setscrew when concave portion of bobbin winding shaft base adjusting
plate 3 is engaged with convex portion of bobbin winder controller asm. 4.
[Position of leaf switch]
How to adjust
1. Adjust so that a clearance of 0.9 mm or more should be provided between leaf switch 5 and bobbin winding
shaft base adjusting plate 3 when bobbin winding shaft is ON and so that leaf switch is securely turned ON
when bobbin winding shaft is OFF.
Then tighten leaf switch setscrew.
How to adjust
1. Tighten bobbin winder switch contactor plate 6 with setscrew at the position where bobbin winder switch 7 is
turned OFF when amount of bobbin thread wound round bobbin becomes 18 mm in diameter.
Bobbin winding shaft OFF (leaf SW ON)
To strike
3 Bobbin winding shaft base adjusting plate
1 Bobbin presser
2 Bobbin winding shaft
4 Bobbin winder controller asm.
Setscrew
To engage with each other
16 mm
Bobbin winding shaft ON (leaf SW OFF)
[Adjustment of amount of bobbin thread wound round bobbin]
Bobbin winding
shaft base adjusting
plate 5
Leaf SW setscrew
Leaf SW 5
0.9 mm or more
Bobbin winder SW 7
Bobbin winder SW contactor setscrew
Bobbin winder SW contactor plate 6
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