Service manual

S-101.M
2-7
Revised: 10/2013
E-mail: [e-mail]; webside: www.amfreece.com
Phone: [phone]; Fax: [phone]
TROUBLESHOOTING
SYMPTOM POSSIBLE CAUSE POSSIBLE SOLUTION
SERVICE
SECTION
Cutting of stitching
fails
Bent needle Replace
Low thread tension Tighten tension D - 11
Incorrect needle axis Adjust
Incorrect clamping
or unsymmetric clamp pressure
a) Check pressure
b) Increase pressure
Knife outside the buttonhole centre Adjust position D - 13
Eye is deformated Incorrect sewing mechanism rotation
adjustment - start or angle
Adjust
Incorrectly adjusted pin on lever of
eye shape
Adjust
Incorrect spreading Adjust, reduce spreading to 0,2 mm
Throat plate is too low or hits to
clamp plates
Lift up to clamp plates position,
for 3 mm lower as maximum
Knife outside the buttonhole centre
when cutting before stitching
Adjust the knife surface
D - 13
Stitches
are not regular
Loose brakes Adjust D - 4
Feeding clutch worn out Replace single direction clutch