Brother BE-0901E-AC-PC Personal Computer User Manual


 
12-2 BE-0901E-AC-PC• BE-1201B-AC-PC
Chapter 12 Troubleshooting
Mechanical Section
Problem Check point
! Thread breakage 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?
! 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?
Check these points once again
! 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?