Dürkopp Adler 1767 Operating Instructions Manual page 106

104
Error Possible causes
Thread Needle thread and hook
breaking 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 take-up
disk, are sharp-edged
Throat plate, hook or
spread have been
damaged by the needle
Remedial action
Check threading path
Replace the needle
Insert the needle correctly
into the needle bar
Use recommended thread
Check thread tensions
Check threading path
Have parts reworked by
qualified specialists
Operating Instructions 1767 - 00.0 - 12/2016
Troubleshooting