ELNA 3230 - Page 3

Elna International Corps. SA 3210 / 3230 Service manual
CONDITION CAUSE HOW TO FIX REFERENCE
1. Skipped
stitches
1. Needle is not inserted
properly.
2. Needle is bent or worn.
3. Incorrectly threaded.
4. Needle or thread is
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
hook timing.
9. Inappropriate needle to
hook clearance.
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 Timing to Hook".
See mechanical
adjustment "Clearance
Between Needle and Hook
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2. Fabric not
moving
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.
Adjust the presser bar level
to make the pressure
stronger.
See mechanical adjustment
''Feed Dog Height".
Raise the Feed dog level.
Make sure to bring both
needle and bobbin thread
under the foot when
starting sewing.
Change the feed dog.
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