
2-6
S100
TROUBLESHOOTING
Revised 10/2005
e-mail: [email protected], [email protected], website: www.amfreece.com
Phones: +420 582 309 146 (service), +420 582 309 286 (spare parts), Fax + 420 582 360 606
SYMPTOM
POSSIBLE CAUSE
PROBABLE SOLUTION
Equalize the left and right-hand
pressure.
Unequal left and right - hand pressure.
Correct the main shaft and cam brake
pressure.
Incorrect man shaft and cam brake
prassure.
Correct the fknife position.
Incorrect knife drop position.
Equalize the amount of fabric for both
sides of the buttonhole.
Unequal amount of fabric for the left
and right sides of the buttonhole.
Correct the needle bar height.
Incorrect needle bar height.
Correct the main shaft and cam brake
pressure.
Incorrect main shaft and cam brake
pressure.
Correctly increase the clearance.
Needle contact the looper or spreader.
Thread patch is worn or damaged.
Replace the patch.
Weak needle.
Use suitable needle.
Correctly increase the clearance.
Excessive needle to needle guard
clearance.
Correctly increase the clearance.
Correct the left - hand spreader
position.
Correctly increase the clearance.
Inconsistent buttonhole section
seam
Needle contacts the looper.
Needle contacts the clamp foot.
Correctly increase the clearance.
Needle contacts the holder.
Correctly increase the clearance.
Needle contact the clamp foot.
Bobbin thread break.
Needle break.
Sides of the seam at the straight
section of the buttonhole are not
uniform.
Incorrect left - hand spreader
installation.
Excessive bobbin thread tension .
Correctly decrease the tension.
Replace.
Damaged left- hand spreader.