Use and Care Manual

86
GENERAL PROBLEMS
Machine does not sew.
* Power switch is turned off.
- Turn on the switch.
* Buttonhole lever is not raised when sewing stitch patterns.
– Raise buttonhole lever.
* Buttonhole lever is not lowered when sewing buttonhole.
– Lower buttonhole lever.
Machine jams/knocks.
* Thread is caught in hook.
- Clean hook (see page 78 - 79).
* Needle is damaged.
- Replace needle (see page 24 - 25).
Fabric does not move.
* Presser foot is not lowered
- Lower presser foot.
* Stitch length is too short - Lengthen stitch length.
* Feed dogs are lowered - Raise feed dogs.
Desired pattern cannot be selected.
* Twin needle mode switch has been turned on and lit red.
– Turn off the switch.
STITCHING PROBLEMS
Machine skips stitches.
* Needle is not all the way up into needle clamp.
- See page
24 - 25.
* Needle is bent or blunt.
- Replace needle (see page
24 - 25).
* Machine is not threaded correctly.
- See page 20 - 21.
* Thread is caught in hook.
- Clean hook (see page 78 - 79).
Stitches are irregular.
* Needle size is not correct for thread and fabric.
- See page
24 - 25.
* Machine is not threaded correctly.
- See page 20 - 21.
* Top thread tension is too loose.
- See page 26 - 27.
* Fabric is being pulled or pushed against machine feeding
action.
- Guide it gently.
* Bobbin has not been wound evenly.
- Rewind bobbin.
Needle breaks.
* Fabric is being pulled or pushed against machine feeding
action.
- Guide it gently.
* Needle size is not correct for thread and fabric.
- See page
24 - 25.
* Needle is not all the way up into the needle clamp.
- See page
24 - 25.
THREAD PROBLEMS
Thread bunches.
* Top and bobbin threads are not drawn back under presser
foot before starting seam.
- Draw both threads back under
presser foot about 4 inches (10 cm) and hold until a few
stitches are formed.
Needle thread breaks.
* Machine is not threaded correctly.
- See page 20 - 21.
* Top thread tension is too tight.
- See page 26 - 27.
* Needle is bent.
- Replace needle (see page 24 - 25).
* Needle size is not correct for thread and fabric
- See page
24 - 25.
Bobbin thread breaks.
* Bobbin case is not threaded correctly.
- See page 18 - 19.
* Lint accumulates in bobbin case or hook.
- Remove lint
(see page 78 - 79).
Fabric puckers.
* Top thread tension is too tight.
- Adjust thread tension
(see page 26 - 27).
* Stitch length is too long for sheer or soft fabric.
- Shorten
stitch length.
5. PERFORMANCE CHECKLIST