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16 BE-1204B-BC • BE-1204C-BC • BE-1206B-BC
Contents
Chapter 9 Maintenance
1. Cleaning ....................................................................................................................................................................9-2
1-1 Cleaning and Lubrication of Rotary Hook ..........................................................................................................9-2
1-2 Cleaning of Needle Plate...................................................................................................................................9-3
2. Oiling .........................................................................................................................................................................9-4
2-1 Head..................................................................................................................................................................9-4
2-2 Lower shaft........................................................................................................................................................ 9-5
3. Greasing.................................................................................................................................................................... 9-6
3-1 Cam grooves.....................................................................................................................................................9-6
3-2 Lower gear ........................................................................................................................................................9-8
3-3 Driving shaft.......................................................................................................................................................9-8
3-4 Needle bar flip-up mechanism...........................................................................................................................9-9
3-5 Feed Guide Section.........................................................................................................................................9-10
Chapter 10 Adjustment
1. Adjusting Needle Bar Height .................................................................................................................................10-2
2. Attachment and Adjustment of Rotary Hook........................................................................................................10-6
3. Adjustment of Presser Foot Height.......................................................................................................................10-8
4. Thread Wiper Adjustment ......................................................................................................................................10-9
Chapter 11 Error code list
Chapter 12 Troubleshooting
Mechanical Section ....................................................................................................................................................12-2
Electrical Section........................................................................................................................................................12-4
Personal Computer Section ......................................................................................................................................12-8
Chapter 13 Connection and Installation of Optional Equipment
1. Attaching Bobbin Winder.......................................................................................................................................13-2