Instruction manual

6.14 Adjusting the stitch length

The class 669 sewing machine is equipped with two dials, depending

on the subclass. This allows two different stitches to be used when

sewing. They can be selected using button 4 ( see Chapter 6.15).

The stitch lengths are set using the two dials 1 and 2 found on the

machine arm.

–

Set the longer stitch length with the upper dial 1.

Position 1 = min. stitch length

Position 9 = max. stitch length

–

Set the shorter stitch length with the lower dial 2.

Position 1 = min. stitch length

Position 9 = max. stitch length

Stitch lengths are equal for both forward and reverse sewing.

–

Push the stitch regulator lever 3 down in order to manually sew

bartacks.

The machine will sew backwards as long as the stitch regulator

lever 3 is pressed down.

Note

In order to facilitate the process of adjusting the s titch lengths, the

button 2 (see Chapter 6.15) should be used to fix the stitch lengths so

that they do not shift.

CAUTION: Danger of breakage !

Make sure that the stitch length set with the lower dial 2 is not larger

than the stitch length set by the upper dial 1.

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