Errors In Sewing Process - DURKOPP ADLER 195 Operating Instructions Manual

92

10.3 Errors in sewing process

Meaning Possible causes
Thread • Needle thread and hook
breakage thread have not been
threaded correctly
• Needle is bent or
sharp-edged
• Needle is not inserted
correctly into the needle
bar
• The thread used is
unsuitable
• Thread tensions are too
tight for the thread used
• Thread-guiding parts such
as thread tube, thread
guide or thread-takeup
disk are sharp-edged
• Throat plate, hook or
spread have been
damaged by the needle
Missing • Needle thread and hook
stitches thread have not been
threaded correctly
• Needle is blunt or bent
• Needle is not inserted
correctly into the needle
bar
• The needle thickness
used is unsuitable
• The reel stand is
assembled incorrectly
• Thread tensions are too
tight
Remedial action
• Check the thread path
( p. 15)
• Replace the needle
• Insert the needle into the
needle bar
• Use recommended
thread
• Check thread tensions
( p. 27)
• Check the thread path
• Have parts reworked by
qualified specialists
• Check the thread path
( p. 15)
• Replace the needle
• Insert the needle into the
needle bar
• Use recommended
needle thickness

(
• Check thread reel holder
( p. 70)
• Check thread tensions
( p. 27)
Operating Instructions 195 - 01.0 - 11/2017
Troubleshooting
p. 95)