BES-961BC
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BES-1261BC
156
Chapter 10 Troubleshooting
• Is the machine properly threaded?
• Is thread tension too high?
• Is the rotary hook assembly clogged?
• Is there thread in the bobbin?
• Is the needle bent?
• Is there a rough edge or flaw on the needle plate, rotary hook, or
bobbin case that might cut the thread?
• Is the needle installed correctly (direction, angle, etc.)
• Is the presser foot in contact with the material?
• Are the thread thickness and needle size correct?
• Is a thread with right-hand twist being used? (If such a thread is
used, replace with a thread with left-hand twist.)
• Is there any adhesive on the needle?
• Is the material tension too weak?
• Is there too much play between the outer rotary hook and inner
rotary hook?
• Does the outer rotary hook turn smoothly?
• Is the clearance between the rotary hook stopper and the rotary
hook adjusted correctly?
• Does the thread come out from the bobbin case smoothly?
Mechanical Section
Problem
Check Point
■
Thread breakage
■
Needle (presser foot) interference
with embroidery hoop
• Is the embroidery hoop too small?
• Check the size and needle start position in the sewing data.
■
Needle breakage
• Is the needle attached correctly (direction, height, etc.)?
• Is the needle bent?
• Is the rotary hook attached correctly?
• Is the timing set correctly?
• Is there any backlash with the needle bar case (back/forth and
right/left)?
• Is the rotary hook stopper correctly attached to stop the rotary
hook?
• Is the needle size correct and the tip sharp?
• Does the thread pass through the hole center of the presser foot?
■
Not embroidered properly
• Is the material edge caught in the machine?
(Are embroidery hoop and other related parts operating
correctly?)
• Is the material stretched properly?
• Is thread tension proper?
Does the lower thread come out smoothly?
Check these points once again
Summary of Contents for BES-1261BC
Page 7: ...5 BES 961BC BES 1261BC 2 1 7 1 6 3 4 5 7 3 2 Belt cover Finger guard BES 961BC ...
Page 13: ...11 BES 961BC BES 1261BC Setting of thread breakage sensor page 93 Setting of Machine page 96 ...
Page 18: ...16 BES 961BC BES 1261BC ...
Page 19: ...Chapter 1 Preparation of Embroidery Machine ...
Page 60: ...BES 961BC BES 1261BC 58 Chapter 2 Embroidering Procedures ...
Page 78: ...BES 961BC BES 1261BC 76 Chapter 3 Selection of Data and Embroidering ...
Page 118: ...BES 961BC BES 1261BC 116 Chapter 5 Setting ...
Page 119: ...Chapter 6 Operation of Machine ...
Page 130: ...Chapter 6 Operation of Machine BES 961BC BES 1261BC 128 ...
Page 131: ...Chapter 7 Maintenance ...
Page 140: ...Chapter 7 Maintenance BES 961BC BES 1261BC 138 ...
Page 141: ...Chapter 8 Standard Adjustment ...
Page 153: ...Chapter 9 List of Error Messages ...
Page 161: ...Connection and Installation of Optional Equipment ...