Service manual

S-101.M
2-5
Revised: 10/2013
E-mail: [e-mail]; webside: www.amfreece.com
Phone: [phone]; Fax: [phone]
TROUBLESHOOTING
SYMPTOM POSSIBLE CAUSE POSSIBLE SOLUTION
SERVICE
SECTION
Skipping stitches Incorrectly installed needle Replace the needle C - 2
Wrong threading Adjust C - 3
Incorrect thread tension Adjust the thread tension C - 3
Bent needle Replace
Clearance in sewing drive Adjust
Excessive looper to needle clearance Adjust the clearance D - 8
Incorrectly adjusted stitch mech. Adjust the stitch mechanism
Damaged loopers or spreaders Clean and repolish the damaged
areas, eventually replace
Wear or damaged stitch plate Replace
Weak reverse spring on spreaders Replace
Excessive clamp foot to needle entry
point clearance
Adjust to 1 mm
D - 14
Incorrect clamping Pressure and adjustment checking D - 14
Not even spreading - loose fabric Adjust D - 14
Elastic material Adjust the sewing mechanism
Skipped stitch at the
sew start
Sew start thread lenght too short Ensure the thread is clamped rmly
The fork of left spreader is out of the
looper hole
Adjust the left spreader position
D - 9
Incorrect right looper timming Adjust the right looper timmig D - 9
Big clamp distance from sewing Adjust to max. 1 mm
Damaged or bent looper Replace
Incorrect thread tension Adjust the thread tension D - 11
Removing stitches
at the end of the
sewing
Incorrect upper thread tension re-
lease
Correct the upper thread tension
release
Damaged right looper Replace the looper 14.4004.0.000
Damaged throat plate hole Replace the throat plate
Incorrect right looper and needle
timming
Correct the right looper and needle
timming
D - 8
Breakage of upper
thread
Incorrect threading Correct it C - 3
Excessive thread tension Adjust optimal D - 11
Incorrect threads (week, asleep) Use rmed threads
Damaged thread guide Repair or replace
Incorrectly installed needle Correctly install the needle C - 2
Damaged needle Replace
Damaged loopers (spreaders) Repair or replace
Needle hits the throat plate Adjust C - 2
Needle and looper touch (contact) Adjust the clearance
Incorrectly adjusted trimming knife Adjust it optimal
3. SEWING FAULTS