Operation Manual

2.9 Remaining Thread Monitor

The remaining thread monitor monitors the thread reserve on the the

underthread bobbin with the infrared reflecting light barrier 1.

Function

–

After a certain number of seams the underthread reserve on the

bobbin is used up.

–

The light beam transmitted from light barrier 1 is reflected by the

exposed reflecting surface 2 on the bobbin hub.

–

The display of the controls shows the message " Bobbin Empty ".

–

The seam is securely ended with the thread reserve found in the

reserve groove.

Caution Risk of Injury !

Turn the main switch off.

Change the underthread bobbin only with the sewing unit turned off.

–

Turn the main switch off.

–

Change the bobbin.

–

At every bobbin change clean the lenses of the light barrier with a

soft

cloth.

–

Turn the main switch on.

–

Start a new sewing sequence.

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