Operation Manual

2.6 Setting the Thread Regulator

The needle thread quantity required for stitch formation is regulated

with the thread regulator 2.

Only a precisely set thread regulator guarantees an optimal sewing

result.

The setting of the thread regulator is dependent on the following

factors:

–

Stitch length

–

Material thickness

–

Characteristics of the sewing yarn used

With a correct setting, the needle thread loop 6 should glide over the

hook without excess and with a little tension.

Caution Risk of Injury !

Turn the main switch off.

Set the thread regulator only with the sewing unit turned off.

–

Loosen screw 5.

–

Set thread regulator 2.

The vertical wire 3 in conjunction with scale 4 serves as a setting

aid (Guideline value: 2.5).

–

Tighten screw 5.

Setting note:

With a correct setting of the thread regulator the following must apply:

–

When the thread loop 6 passes the maximum girth of the hook, the

thread controller spring 1 must be pulled approx. 1 mm downward

out of its upper end position.

The 1 mm dimension is a guideline. Dependent on the tension of

the thread controller spring, it can be greater or smaller.

1 2 3 4 5