Page 8/41
Original issue
Sept.2010
Service Manual
160
Model
2. Test mode with warning function deactivated
This test mode is used to operate machine without threading, while sensors for
thread breakage, presser foot lever and bobbin thread are deactivated.
1. While pushing three switch buttons 1, 3 & 5 at control panel at the same time,
turn on sewing machine.
２．Release three switch buttons after beep sound is heard.
Machine runs with any desired button selected by using foot control.
1
3
5
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