Strobel 310D-R - Page 37

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• The sewing result does not come up to your expectations
Possible causes:
- Damaged sewing tools or wear caused by improper use or natural
wear following long use of machine.
- The machine has become mechanically misadjusted
- Unsuitable needle thickness (see “4.1 Needles and threads”)
- Unsuitable sewing thread (see “4.1 Needles and threads”).
Remedy:
- Replace damaged parts - customer service
- Work carried out by engineers: see also mechanic’s instructions and if
necessary, call customer service
- Replace needle; also check needle tip for damage.
• Marks on or damage to the sewn item
Possible causes:
- unsuitable feed gearing
- Sewing tools incorrectly set
- Damaged sewing tools
- Unsuitable needle or thread thickness.
Remedy:
- check settings
- check feed (gearing), if necessary, replace feed
- choose needle and thread to suit sewing material.
• Difficulties during feeding the sewn material (stitch length)
Possible causes:
- Feed incorrectly adjusted
- Unsuitable feed gearing
- Incorrect presser plate take-up
- Bunching of the sewn item on the needle plate, particularly when
cross-seaming.
Remedy:
- check settings, if necessary change feed.
- Check lower side of needle plate, feed and sewing tools for damage, if
necessary replace or re-polish.
- The suitable stitch plate must be selected for thick sewn material –
see “7 Variable sewing tools” and “8 Optional Extras”.