What causes the lower thread to break on a Bernette B05 Academy?
Lower thread breakage can be caused by: * The bobbin not being inserted correctly. Remove and reinsert the bobbin, ensuring the thread runs easily when pulled. * The bobbin being wound incorrectly. Check the bobbin and thread are correct. * A blunt or bent needle. Replace the needle.
How to resolve faulty stitching on my Bernette B05 Academy Sewing Machine?
Faulty stitching can be caused by: * Thread remnants between the thread tension discs. Fold a piece of thin material and slide the folded edge (not the raw edges) between the thread tension discs. * Incorrect threading. Rethread the machine. * Thread caught in the hook. Remove the upper thread and the bobbin case, turn the handwheel backwards and forwards by hand and remove the thread remnants. * An incorrect needle/thread combination. Check the needle/thread combination.
Instructions to reduce the risk of electrical shock.
Safety instructions to prevent burns, fire, or injury.
Steps for connecting, switching on, and controlling machine speed.
Guides for threading upper thread, needles, and winding the bobbin.
How to select, set, and adjust stitch patterns and their properties.
Overview, marking, and determining buttonhole length.
Steps for reinforcing, testing, sewing, and cutting buttonholes.
Instructions for cleaning the feed dog and hook assembly.
Procedure for oiling the needle bar mechanism for smooth operation.
Causes and solutions for stitch formation problems and needle breaks.
General| Type | Mechanical |
|---|---|
| Max Stitch Width | 5 mm |
| Max Stitch Length | 4 mm |
| Adjustable Presser Foot Pressure | Yes |
| Drop Feed | Yes |
| Accessories Included | seam ripper, screwdriver |
| Bobbin Type | Drop-in bobbin |
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