What To Do When - ELNA 6001 Service Manual

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CONDITION
1. Skipping
stitches
2. Fabric not
moving.
3. Breaking upper
thread.

WHAT TO DO WHEN

CAUSE
1. Needle is not inserted
properly.
2. Needle is bent or worn.
3. Incorrectly threaded
4. Needle or thread are
inappropriate for fabric
being sewn.
5. Sewing on stretch fabric.
6. Presser foot pressure is
too weak.
7. Inappropriate needle bar
height.
8. Inappropriate needle to
shuttle timing.
9. Inappropriate needle to
shuttle clearance
1. Presser foot pressure is
too weak.
2. Incorrect feed dog height.
3. Feed dog is in down
position.
4. Thread on bottom side of
fabric is jammed up.
5. Feed dog teeth are worn.
1. Initial sewing speed is
too fast.
2. Thread path is incorrect
3. Needle is bent or dull.
4. Upper 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
HOW IS FIX
Insert the needle properly
Change the needle
Rethread
Use the recommended sewing
needle and thread
Use a #11 blue tip needle
Adjust the presser bar level to
make the pressure stronger
See mechanical adjustment
"NEEDLE BAR HEIGHT"
See mechanical adjustment
"NEEDLE TO SHUTTLE TIMING"
See mechanical adjustment
"CLEARANCE BETWEEN NEEDLE
AND HOOK".
Adjust the presser bar level to
make the pressure stronger.
See mechanical adjustment "FEED
DOG HEIGHT".
Raise the feed dog lever.
Make sure to bring both needle and
bobbin thread under the foot when
starting sewing.
Change the feed dog.
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.
3
REFERENCE
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