Position Of Knives - Janome 634D Servicing Manual

TO ADJUST THE POSITION OF KNIVES
The tip of the lower knife (A) should be leveled with the surface of needle plate (B). When the
upper knife (C) is at the lowest position, the front lower corner of upper knife should be 0.8 to 1.5
mm (D) below the edge of lower knife.
To adjust:
1. Before proceeding with this adjustment, check the upper knife timing.
2. Loosen the 2 setscrews (B), and adjust the lower knife position.
3. Turn the balance wheel to bring upper knife (C) to the lowest position.
4. Loosen the hexagon bolt (F), and adjust the position of upper knife (C).
5. Tighten the hexagon bolt (F).
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