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General| Brand | Bernina |
|---|---|
| Model | 930 |
| Category | Sewing Machine |
| Language | English |
Lists detailed technical specifications for BERNINA sewing machine models.
Step-by-step instructions for removing various machine covers to access internal components for maintenance.
Adjustments for needle position, lateral movement, and stitch formation accuracy for optimal sewing.
Adjusting stitch distribution, lateral needle motion via cam control, and pattern indicator settings.
Procedures for setting hook timing, loop lift, needle height, and feed-dog settings for correct stitch formation.
Adjustments for the basting device, needle bar guide, cushioner, and control levers for proper operation.
Procedures for setting presser foot height, pressure, and calibrating the darning device.
Procedures for setting and checking the needle stop mechanism, including bearing plate and latch lift.
Adjusting the needle's stop position and performing stop tests for accurate operation.
Adjusting the presser foot lifter to its optimal operational position.
Instructions for checking and adjusting upper and lower thread tensions for balanced stitch formation.
Adjusting stitch length, bar tack density, and bead settings for the automatic buttonholer.
Procedures for adjusting the bobbin winder's pre-tension, winding pattern, and fill level.
Information on toothed belts and re-tensioning the drive system for proper power transmission.
Safety precautions before electrical work and overview of motor and electronic system components.
Procedures for removing, replacing, and connecting printed circuit boards (power, regulating, transformer).
Adjusting potentiometers on PCBs for speed control and securing settings.
Troubleshooting flowcharts to diagnose and resolve machine malfunctions based on symptoms.
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