Pfaff 1520 Manual

A SERVICE OF

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49

25. Adjustment of needle penetration in needle plate slot on Pfaff 1540

Requirement:

At straight stitch setting with needle position "center" the needle must be exactly in the center of the

needle plate slot (fig. 30).

Check:

z Remove presser foot.

z Insert a new needle.

z Set stitch width adjustment dial 70 to "0" (fig. 32).

z Set needle position adjustment dial 79 to "center".

z Press straight stitch and zigzag stitch button on the automatic utility-stitch unit.

z Turn the handwheel and check the centered position of the needle.

Adjustment:

z Loosen the three screws 75 on the zigzag-stitch unit by just 1/8 of a turn.

z Turn the handwheel until the needle point is level with the surface of the needle plate (fig. 31).

z Move the zigzag-stitch unit to the left or right until the needle is exactly in the center of the needle plate

slot (fig.32).

Note:

The zigzag-stitch unit should now be parallel to the arm shaft and clear it by 3.0 mm.

z Tighten the three screws 75.

Cross-check:

z The needle must be exactly in the center of the needle plate slot.