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4.5 Checking the Positioning

Before commissioning check the positioning set at the factory.

After turning on the main switch the sewing unit must position in

the needle high position (Position 2).

Checking the positioning

–

Turn the main switch off.

–

Bring the thread lever into a middle position by turning the

handwheel.

–

Turn the main switch on.

The sewing unit positions in needle high position (Position 2).

The thread lever must lie 2 mm behind its upper dead center.

–

Check the position of the thread lever.

If necessary correct the positioning.

Correcting the positioning

–

Loosen clamping screws 2 on the synchronizer.

–

Hold the synchronizer collar 1 tight.

–

Move the thread lever to 2 mm behind its upper dead center by

turning the handwheel.

–

Tighten the clamping screws 2.

–

Check the positioning again.

For the setting of the 1st needle position (needle low position)

see Service Instructions.