Chapter 8 Standard Adjustment
2. Replacing (Attaching) Rotary Hook
q
Cutting
section
144
1. Turn the power switch off.
2. Tighten the screw q of the rotary hook cutting
section to fit to that of the lower shaft w.
Lower
shaft
3. When mounting, press it inward until it stops.
Note) After replacing rotary hooks, refer to "4. Adjust-
BES-961BC BES-1261BC
ment of Timing Between Needle and Rotary Hook
(Page 146)" and adjust the timing.