Janome JW7630, Руководство по обслуживанию

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12
Lower shaft gear
MECHANICAL ADJUSTMENT
NEEDLE TO HOOK TIMING
When the machine is set the straight stitch pattern no.2 ( left needle position), the amount of ascending travel of the
needle bar from its lowest position to the position where the tip of the hook meets the right side of the needle
should be 3.25 - 3.55 mm.
1. Remove the needle plate and bobbin holder.
2. Turn on the power switch, set thestraight stitch pattern no.2 (left needle position).
3. Remove the bed cover.
4. Turn the handwheel toward you, and set the needle bar at the lowest position.
5. Loosen the setscrews on the lower shaft timing gear.
6. Raise the needle bar between 3.4 mm from the lowest position of the needle bar.
7. Turn the lower shaft gear until the tip of hook meets with the right side of needle.
8. Tighten the setscrews on the lower shaft gear.
9. Attach the bed cover, bobbin holder and needle plate.
Match the tip of hook at
the right side of needle
Needle #14
3.25-3.55 mm
Lower needle position
Setscrew