Bernette b62 AIRLOCK, Быстрый старт

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14
Troubleshooting
Fault Remedy
Fabric does not feed well. • Lengthen the stitch length.
• Increase the Presser Foot Pressure for heavyweight fabric.
• Decrease the Presser Foot Pressure for lightweight fabrics.
• Check the setting of the Di
ff erential Feed.
Needle breaks • Insert the needle correctly.
• Do not pull the fabric while sewing.
• Tighten the Needle Set Screw.
• Select the appropriate needle for the sewing project and the
weight of thread.
Thread breaks • Loosen the Thread Tension.
• Check the threading path.
• Check for tangled or caught thread.
• Insert the needle correctly.
• Insert a new needle; inserted needles may be bent or have a
blunt point.
• Use high quality thread.
Skipped stitches • Insert a new needle; the inserted needles may be bent or have
a blunt point.
• Tighten the Needle Set Screw.
• Insert the needles correctly.
• Select the appropriate needle for the sewing project and the
weight of thread.
• Check the threading path.
• Increase the Presser Foot Pressure.
• Use high quality thread.
Irregular stitches • Balance the Thread Tension.
• Check for tangled or caught thread.
• Check the threading path.
Fabric puckers • Check the setting of the Di ff erential Feed.
• Loosen the Thread Tension.
• Check for tangled or caught thread.
• Use high quality thread.
• Shorten the stitch length.
• Decrease the Presser Foot Pressure for lightweight fabrics.
Fabric piles up • Lengthen the stitch length.
• Check the setting of the Di
ff erential Feed.
• Check for tangled or caught thread.
• Compress/Baste thick layers of fabric with a conventional ma-
chine before sewing with the Overlocker.
Machine does not operate • Connect machine to the power source and switch it on.
• Close the Looper cover.