Janome MyStyle 100, Service Manual

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Condition Cause How to fix Reference
6. Noisy 1. Backlash between See mechanical p.15
operation the hook gear and adjustment “Backlash
lower shaft gear is too between Hook Gear and
great. Lower Shaft Gear”.
2. Lower shaft gear is loose. Eliminate the looseness.
3. Inappropriate belt tension. See mechanical adjustment p.20
“Motor Belt Tension.”
4. Not enough oil. Oil all moving parts.
5. Upper shaft is loose. Eliminate the looseness.
7. Deformed 1. Inappropriate feed See mechanical adjustment p.16
pattern balance. “Distorted pattern”
2. Inappropriate zigzag See mechanical p.9
synchronization. adjustment “Needle Swing.”
3. Upper thread tension Adjust needle thread
is too strong. tension correctly.
8. 1. Buttonhole stitch See mechanical adjustment p.17
balance is not correct. “Buttonhole Stitch Blance”.
2. Changing to bar tack See mechanical adjustment p.18
is too early or will not “Bartack Feed of Buttonhole”.
work.
9. Improper 1. The pattern selector is See mechanical adjustment p.19
pattern blocked. "Disengagement of Cam
Followr".
2. The pattern selector will See mechanical adjustment p.19
not select the correct "Disengagement of Cam
pattern. Followr".
Improper
buttonhole
results