Troubleshooting
Service Instructions 878-M PREMIUM - 03.0 - 10/2019
119
Loose stitches
Thread tensions are not
adjusted to the sewing
material, the sewing
material thickness or the
thread used
Check the thread tensions
Needle thread and hook
thread have not been
threaded correctly
Check the threading path
Needle breakage
Needle strength is
unsuitable for the sewing
material or the thread
Use the recommended needle
strength
Error
Possible causes
Remedial action
Summary of Contents for 878-M PREMIUM
Page 1: ...878 M PREMIUM Service Instructions...
Page 10: ...About these instructions 8 Service Instructions 878 M PREMIUM 03 0 10 2019...
Page 66: ...Integrated motor 64 Service Instructions 878 M PREMIUM 03 0 10 2019...
Page 114: ...Maintenance 112 Service Instructions 878 M PREMIUM 03 0 10 2019...
Page 116: ...Decommissioning 114 Service Instructions 878 M PREMIUM 03 0 10 2019...
Page 118: ...Disposal 116 Service Instructions 878 M PREMIUM 03 0 10 2019...
Page 126: ...Technical data 124 Service Instructions 878 M PREMIUM 03 0 10 2019...
Page 127: ...Appendix Service Instructions 878 M PREMIUM 03 0 10 2019 125 23 Appendix Wiring diagram...
Page 128: ...Appendix 126 Service Instructions 878 M PREMIUM 03 0 10 2019...
Page 129: ......