Operation
34 Operating Instructions 745-35-10 S/745-35-10 A - 03.0 - 04/2017
This is how the remaining thread monitor works:
• When the bobbin is empty, the light beam transmitted by the light
barrier (1) or (2) is reflected by the exposed reflecting surface (3) of the
bobbin hub.
• If the remaining thread monitor is switched on, the control panel displays
the message: Error 3220 .
• The pocket opening is safely finished with the remaining thread in the
reserve groove of the bobbin hub. The transport carriage stops at its
rear end position. It cannot be started again until the bobbin has been
changed.
Cleaning the remaining thread monitor
To clean the remaining thread monitor:
1. Switch off the main switch.
2. Clean the lenses of the light barriers with a soft cloth every time you
change the bobbin.
3. Switch on the main switch.
4. Start a new sewing process.
CAUTION
Risk of injury from sharp and moving parts!
Puncture or crushing.
Do not clean the lenses of the light barriers unless
the sewing unit is switched off.
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