5. PERFORMANCE CHECKLIST
GENERAL PROBLEMS
Machine does not sew.
Power switch is turned off.
Turn on the switch.
Buttonhole lever is not lowered when sewing
buttonhole.
Lower buttonhole lever.
Bobbin winder is engaged.
Disengage bobbin winder.
See page 6
See page 30
See page 4
See page 30
Machine jams/knocks.
Thread is caught in hook.
Clean hook.
See page 32
Needle is damaged.
Replace needle.
See page 11
Fabric dose not move.
Presser foot is not lowered.
Lower presser foot.
Stitch length is too short.
Lengthen stitch length.
See page 16
Darning plate is placed on needle place.
Remove darning plate.
STITCHING PROBLEMS
Machine skips stitches.
Needle is not all the way up into needle clamp.
See page 11
Needle is bent or blunt.
Replace needle.
See page 11
Machine is not threaded correctly.
See page 8
Thread is caught in hook.
Clean hook.
See page 32
Stitch are irregular.
Needle size is not correct for thread and fabric.
See page 11
Machine is not threaded correctly.
See page 8
Top thread tension is too loose.
See page 14
Fabric is being pulled or pushed against machine
feeding action.
Bobbin has not been wound evenly.
Needle breaks.
Fabric is being pulled or pushed against machine
feeding action.
Needle size is not correct for thread and fabric.
See page 11
Needle is not all the way up into needle clamp.
See page 11
See page 33
THREAD PROBLEMS
Thread bunches.
Top and bobbin threads are not drawn back under
presser foot before starting seam.
See page 19
Draw both threads back under presser foot about 6"
(15 cm) and hold until a few stitches are formed.
Needle thread breaks.
Machine is not threaded correctly.
See page 8
Top thread tension is too tight.
See page 14
Needle is bent.
Replace needle.
See page 11
Needle size is not correct for thread and fabric.
See page 11
Bobbin thread breaks.
Bobbin case is not threaded correctly.
See page 7
Lint accumulates in bobbin case or hook.
See page 32
Guide it gently.
Guide it gently.
Rewind bobbin.
Remove lint.
Fabric puckers.
See page14
Top thread tension is too tight.
Adjust top thread tension.
Adjust top thread tension.
Adjust top thread tension.
See page16
Stitch length is too long for sheer or soft fabric.
Shorten stitch length.
Condition
Causes
Solutions
Reference
There is a gap between slider and spring holder on
buttonhole foot.
Press the buttonhole foot lightly to avoid the gap
between slider and spring holder.
Re-fix the needle.
Re-fix the needle.
Re-threading.
Re-threading.
Re-threading.
Re-threading.
Change either needle or thread.
Change to another type of needle.
Not push the twin needle button when use twin
needle.
Push twin needle button.
Change to another type of
t
hread.
Change to another type of needle.
Change to another type of
t
hread.
37
Summary of Contents for KP6210
Page 1: ...KP6210 KP6210A 210x297...
Page 12: ......
Page 15: ...Place the large extension table along the machine body as illustrated...
Page 16: ......
Page 31: ...29...
Page 40: ...621960007 BS01 04 2018...
