Adjustment Of Zigzag Stitch Penetration In Needle Plate Slot On Pfaff 1540 - Pfaff Select 1520 Service Manual

27. Adjustment of zigzag stitch penetration in needle plate slot on Pfaff 1540

Requirement:
The widest zigzag stitches must have the same distance to the left and right edges of the needle plate
slot (fig. 54).
Check:
Remove the presser foot.
Insert a new needle.
Set zigzag stitch adjustment dial to "5".
Set needle position adjustment dial to "center".
Press zigzag stitch button.
Turn the handwheel and check the left and the right clearance in the slot.
Adjustment:
Loosen screw 84 (fig.38) and move stop 85 to the left.
Loosen screw 73 (fig. 55).
Rotate setting eccentric 74 until the two clearances are equal.
Tighten screw 73.
Cross-check:
Turn the handwheel and check the clearances.
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