
S-311
2-3
Revised: 01/2014
E-mail: [email protected]; webside: www.amfreece.com
Phone: +420 582 309 146; Fax: +420 582 360 606
TROUBLESHOOTING
SYMPTOM
POSSIBLE CAUSE
PROBABLE SOLUTION
SERVICE
SECTION
Thread
breakage.
Thread draw-off is too tight.
Reduce thread tension.
E19
Damaged loopers, spreaders, or
throat plate.
Replace damaged parts. Congested
girders and tube in openers.
Incorrect needle and sewing
mechanism adjustment.
Correctly adjust the needle bar,
loopers, openers and tension.
E4, E10, E7,
E11, E12, page
1-51,52
Poor thread quality.
Replace thread.
Thread holes in the needle and the
looper are too small.
Use correct parts.
The machine
does not sew.
Bent or broken needle.
Damaged loopers.
Threads not threaded properly.
Roll the needle on a smooth flat
surface, if bent, replace the needle.
Threading control.
Needle track on a looper.
Deburr or replace the looper.
Damaged throat plate.
Deburr or replace the throat plate.
Incorrect sewing system adjustment.
Correctly adjust.
page 1-51, page
1-52
Skip stitches.
Incorrectly adjusted thread draw-off.
Correctly adjust the sewing
mechanism.
E12
Bent needle or damaged stitch
forming parts. Loopers, openers.
Replace the damaged parts.
Incorrectly adjusted sewing
mechanism.
Incorrect needle guard distance.
Correctly adjust the sewing
mechanism.
Set the distance to 0.05 mm.
E10,E11,
page 1-51,
page 1-52
Defective spreader return springs.
Replace the springs.
Sewn fabric is
incorrectly cut.
Knife and cutting steel are incorrectly
installed.
Sensor for cutting returns cutting
lever too early.
Check the knife impression on the
cutting steel, adjust or replace as
needed. Check the knife. Replace
if damaged. Adjust the sensor for
cutting.
Cutting cylinder pressure is too low.
Tighten the adjusting screw by 1/2
rotation and check the cutting.
8.5 - 8.6
page 1-49
Top thread is not
trimmed.
Damaged knife.
Replace the knife.
Knife does not return.
Adjust or replace the spring.
Knife incorrectly installed.
Correctly install the knife.
E13 page
1-54
The lower thread
is not caught
in the thread
retainer after
sewing the
buttonhole.
Big clearance between holder
and throat plate.
Choked slot in throat plate.
Adjust the clearance between the
holder and throat plate.
page 1-56
In case looper 03.5519.3.013 is assembled
The top thread
is trimmed, but
is held in the
material.
The thread retainer is adjusted
incorrectly.
Big clearance between clamps.
Re-adjust the thread holder. Reduce
upper thread tension, adjust the
clearance between clamps 0,005
mm.
E13
page 1-56
page 1-48
In case looper 03.5519.4.013 is assembled
Thread pick-up
does not catch
the upper thread.
Knife for trimming the upper thread is
damaged.
Check the knife, re-adjust, adjust
constant tension.
E13
2. FAULTS WITHOUT ERROR MESSAGES