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13. Lightly tighten each of the three Hook Fastening Screws before fully tightening them. Press
and hold the Adjustment key, then press the Right Arrow key to provide access to the screws if
needed.
14. Repeat step 11 and verify hook gap did not change. Repeat steps 9-13 if hook gap is larger than
0.1mm (.004”).
15. You have veried that both the needle to hook gap and the rotational hook timing are correct, re-
fer to the Rotary Hook Support Adjustment section of this document to nish adjusting the rotary
hook.
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