Troubleshooting
Operating Instructions 512/532 - 05.0 - 04/2018
91
9.3
Errors in sewing process
Error
Possible causes
Remedial action
Unthreading
at seam
beginning
Needle thread tension is
too firm
Check needle thread
tension
Thread
breaking
Needle thread and hook
thread have not been
threaded correctly
Check threading path
Needle is bent or
sharp-edged
Replace the needle
Needle is not inserted
correctly into the needle
bar
Insert the needle correctly
into the needle bar
The thread used is
unsuitable
Use recommended thread
Thread tensions are too
tight for the thread used
Check thread tensions
Thread-guiding parts, such
as thread tube, thread
guide or thread take-up
disk, are sharp-edged
Check threading path
Throat plate, hook or
spread have been
damaged by the needle
Have parts reworked by
qualified specialists
Summary of Contents for 512/532
Page 1: ...Operating Instructions 512 532 ...
Page 6: ...Table of Contents 4 Operating Instructions 512 532 05 0 04 2018 ...
Page 16: ...Safety 14 Operating Instructions 512 532 05 0 04 2018 ...
Page 60: ...Programming 58 Operating Instructions 512 532 05 0 04 2018 ...
Page 70: ...Maintenance 68 Operating Instructions 512 532 05 0 04 2018 ...
Page 86: ...Decommissioning 84 Operating Instructions 512 532 05 0 04 2018 ...
Page 88: ...Disposal 86 Operating Instructions 512 532 05 0 04 2018 ...
Page 97: ...Appendix Operating Instructions 512 532 05 0 04 2018 95 11 Appendix ...
Page 98: ...Appendix 96 Operating Instructions 512 532 05 0 04 2018 ...
Page 99: ......