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4 APPENDIX
The various maintenance and troubleshooting procedures are described in this chapter.
Stitch Settings........................................................................................................138
Utility stitches..................................................................................................138
Other stitches...................................................................................................144
Care and Maintenance ..........................................................................................149
Restrictions on oiling........................................................................................149
Cleaning the machine surface
.............................................................................149
Cleaning the race .............................................................................................149
Troubleshooting ....................................................................................................151
Frequent troubleshooting topics.......................................................................151
Upper thread tightened up
.................................................................................151
Tangled thread on wrong side of fabric............................................................152
Incorrect thread tension...................................................................................154
Fabric is caught in the machine and cannot be removed .................................155
When the thread became tangled under the bobbin winder seat.....................158
List of symptoms ..............................................................................................160
Error messages .................................................................................................165
Nothing appears in the LCD.............................................................................166
Operation beep................................................................................................166
Cancelling the operation beep
............................................................................166
Index .....................................................................................................................168