Janome 7330 MAGNOLIA, Руководство по обслуживанию

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7330
CONDITION CAUSE HOW TO FIX REFERENCE
3. Breaking
upper
thread
1. Initial sewing speed is too fast.
2. Thread path is incorrect.
3. Needle is bent or dull.
4. Upper thread tension is too
strong.
5. Needle size is inappropriate for
fabric.
6. Needle eye is worn.
7. Needle hole in needle plate is
worn or burred.
Start with medium speed.
Use the proper thread path.
Replace with a new needle.
Adjust needle thread tension correctly.
Use appropriate needle for fabric
and thread in use.
Change the needle.
Repair the hole or replace the needle
plate.
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4. Breaking
bobbin
thread
1. Incorrecitly threaded bobbin.
2. Too much thread is around on
the bobbin.
3. Lint is stuck inside the bobbin
holder.
4. Thread quality is too low.
5. Thread is jamming around the
bobbin.
Thread bobbin correctly.
Adjust the position of stopper.
Clean the shuttle.
Change to a high quality sewing thread.
Clear out the jamming thread.
5. Needle breaks 1. Needle is hitting the needle plate.
2. Needle is bent or worn.
3. Needle is hitting the shuttle.
4. The fabric moves while the
needle is piercing it, or the
needle zigzags while in fabric.
5. Fabiric is being pulled too
strongly while sewing.
See mechanical adjustment “needle
drop position”.
Change the needle.
See mechanical adjustment
“Clearance between needle and hook”.
See mechanical adjustment “Zigzag
synchronization”.
Guide the fabric gently while sewing.
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