3-13 Play between shuttle driver shaft
gear and lower shaft gear
- Remove the free arm cover and needle
plate.
- Take off the shuttle hook.
- Loosen three set screws (a, b, c) of the
lower shaft gear (d) and move the lower
shaft gear to right or left against axial
direction. (But the lower shaft gear never get
out of shuttle hook gear (e).) (1 / 2)
- When the playing of the shuttle hook holder
should be within 0.5 mm tighten three set
screws (a, b, c).
- Make sure match timing of needle and hook,
see page 16.
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