To Adjust The Position Of The Knives - Kenmore 16677 - Serger Sewing Machine Servicing Manual

TO ADJUST THE POSITION
OF THE KNIVES
CORRECT SETTING:
THE EDGE OFTHE LOWER KNIFE SHOULD BE LEVELED WITH THE SURFACE OF NEEDLE PLATE.
WHEN THE UPPER KNIFE IS AT THE LOWEST POSITION, THE FRONT LOWER CORNER OF UPPER
KNIFE SHOULD BE 0.8 TO 1.5 MM BELOW THE EDGE OF LOWER KNIFE.
TO ADJUST:
BEFORE PROCEEDING WITH THIS ADJUSTMENT, CHECK THE UPPER KNIFE TIMING.
1. LOOSEN THE TWO SETSCREWS (A), AND ADJUSTTHE LOWER KNIFE POSITION.
2. TURN THE HANDWHEEL TO BRING UPPER KNIFE TO ITS LOWEST POSITION.
3. LOOSEN THE HEXAGONAL BOLT (B), AND ADJUST THE POSITION OF UPPER KNIFE.
4. TIGHTEN THE HEXAGONAL BOLT (B).
UPPER KNIFE
.__ _._ WER KNIFE
HEXAGONAL BOLT (B)
SURFACE OF
NEEDLE,LATE /TOP OF LOWER KNIFE
SCREW (A)
LOWER KNIFE
0.8 TO 1.5 MM
KNIFE
HEXAGONAL BOLT (B)
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