Troubleshooting; What To Do When - Janome 3128 Service Manual

CONDITION
1. Skipping 1. Needle is not inserted
properly.
stitches 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. Inappropriate needle bar
height.
7. Inappropriate needle to
hook timing.
8. Inappropriate needle to
hook clearance.
2. Fabric not 1. Incorrect feed dog height.
moving
2. Thread on bottom side of
fabric is jammed up.
3. Feed dog teeth are worn.

WHAT TO DO WHEN

CAUSE HOW TO FIX
Insert the needle properly.
Change the needle.
Rethread.
Use the recommended sewing
needle and thread.
Use a #11 blue tip needle.
See mechanical adjustment
"Needle bar height."
See mechanical adjustment
"Needle timing to shuttle."
See mechanical adjustment
"Clearance between needle
and hook."
See mechanical adjustment
"Feed dog height."
Make sure to bring both needle
and bobbin threads under the
foot when starting sewing.
Change the feed dog.
1
MODEL 3128
REFERENCE
P.15
P.16
P.12,13
P.14