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Service Manual
10. Needle timing to shuttle hook --continued--
2．Tighten screws securely after adjustment.
Meshing condition of shuttle race gear and lower shaft gear
1. Check meshing condition of gears after adjustment.
Check play of the gear at 4 positions –each 90 degree angle of 1 rotation of shuttle
race.
No play on 2 positions to save too loose condition – play on other 2 positions to
save too tight condition.
2. Adjustment of play between shuttle gear and lower shaft gear is made by turning
eccentric ball bushing (D).
*loosen screw (C) on pressing plate so that the ball bushing (D) may be turned.
*Turn the ball bushing (D) in either way by using concave portion.
*The ball bushing is to be placed with mark (F) positioned at upper side within angle of
180 degrees
3. Tighten the screw (C) securely after adjustment.
F
D
Original issue
Oct.2012
Page 24/41
Model
One Plus
C
E
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