Operating instructions

2.2 Needles and Yarns

Needle system: 428; 428 Serv Nm 250; 794

(depending on the type of sewing thread and sewing

material used)

Needle thickness: Nm 12 0 - Nm 2 8 0

(depending on the type of sewing thread and sewing

material used)

Yarns: Synthetic sewing yarns (30/3 to 8/3)

Changing the needle:

Caution Risk of Injury !

Turnthemainswitchoff.

Change the needle only with the unit turned off.

–

Open the head cover.

–

Loosen screw 1.

–

Remove the needle.

–

Push the new needle into the hole in the needle bar up to the stop.

Hereby align the needle w ith the furrow 3 to the hook.

The furrow 2 must show to the front (to the seamstress).

–

Tighten screw 1.

Attention Danger of Breakage!

After a change to a needle with a different needle thickness it is

essential to c heck the clearances hook point-needle and

driver-needle.

If necessary reset the clearances (see Part 3: Service Instructions).

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