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Adjustment of respective parts
14.Clearance between shuttle driver and shuttle hook
[Diagnosis]
1. Remove the extension table, and open the
shuttle cover.
2. Remove the bobbin case from the hook.
3. When the shuttle driver is turned to left by
rotating the handweel, measure the clear-
ance (A) between the shuttle driver and the
shuttle hook.(Fig. 1)
[Standard]
A = 0.3 to 0.6 mm (Fig. 1)
* Make adjustment if the diagnosis result fails to
meet the standard.
[Adjustment]
1. Bend or extending the tip of driver spring,
adjust the clearance between the shuttle
driver and the shuttle hook.(Fig. 2)
[Note]
îIf it cannot be adjusted, replace the driver
spring.
* Repeat the adjustment till the standard is met.
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