Adjustment Of Bobbin Winder - JUKI TL series Service Manual

1-needle lockstitch sewing machine with automatic thread trimmer for professional
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13. Adjustment of bobbin winder

[Position of disengaging bobbin winder]
How to adjust
1. Set ❶ bobbin presser to the position where it is 16 mm away from ❷ bobbin winding shaft.
2. Tighten ❹ bobbin winder controller asm. with setscrew when concave portion of ❸ bobbin winding shaft
base adjusting plate is engaged with convex portion of ❹ bobbin winder controller asm..
❹ Bobbin winder controller asm.
[Position of micro switch]
How to adjust
1. Adjust so that ❶ micro SW should be OFF when bobbin winding shaft is ON and so that micro SW is se-
curely turned ON with ❷ bobbin winding shaft base adjusting plate when bobbin winding shaft is OFF. Then
tighten ❸ micro SW setscrew.
Bobbin winding shaft ON (micro SW OFF)
❸ Micro SW
setscrew
❷ Bobbin winding shaft
base adjusting plate
[Adjustment of amount of bobbin thread wound round bobbin]
How to adjust
1. Tighten ❶ bobbin winder switch contactor plate with setscrew at the position where ❷ bobbin winder switch
is turned OFF when amount of bobbin thread wound round bobbin becomes 18 mm in diameter.
❷ Bobbin winder SW
Setscrew
To engage with each other
❷ Bobbin winding shaft
16 mm
❶ Bobbin presser
To strike
❸ Bobbin winding shaft base adjusting plate
Bobbin winding shaft OFF (micro SW ON)
❶ Micro SW
Bobbin winder SW contactor setscrew
❶ Bobbin winder SW contactor plate
22

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