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21
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13. Adjustment of bobbin winder
[Position of disengaging bobbin winder]
How to adjust
1. Set
1
bobbin presser to the position where it is 16 mm away from
2
bobbin winding shaft.
2. Tighten
4
bobbin winder controller asm. with setscrew when concave portion of
3
bobbin winding shaft
base adjusting plate is engaged with convex portion of
4
bobbin winder controller asm..
[Position of leaf switch]
How to adjust
1. Adjust so that a clearance of 0.9 mm or more should be provided between
1
leaf switch and
2
bobbin wind-
ing shaft base adjusting plate when bobbin winding shaft is ON and so that leaf switch is securely turned ON
when bobbin winding shaft is OFF.
Then tighten leaf
3
switch setscrew.
How to adjust
1. Tighten
1
bobbin winder switch contactor plate with setscrew at the position where
2
bobbin winder switch
is turned OFF when amount of bobbin thread wound round bobbin becomes 18 mm in diameter.
2
Bobbin winding shaft
base adjusting plate
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]
3
Leaf SW setscrew
1
Leaf SW
0.9 mm or more
2
Bobbin winder SW
3
Bobbin winder SW contactor setscrew
1
Bobbin winder SW contactor plate
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