Dürkopp Adler 52 i Series Operating Instructions Manual page 105

Troubleshooting
Operating Instructions 52Xi, 52Xi-75 - 00.0 - 10/2021
Error Possible causes
Loose stitches Thread tensions are not
adjusted to the sewing
material, the sewing mate-
rial thickness or the thread
used
Needle thread and hook
thread have not been
threaded correctly
Needle break- Needle strength is unsuita-
age ble for the sewing material
or the thread
Remedial action
Check the thread tensions
Check the threading path
Use the recommended
needle strength
103