BE-1204B-BC • BE-1206B-BC 10-3
Chapter 10 Troubleshooting
Problem Check point
!Upper shaft locks at a certain
point in one cycle
Is the thread take-up stopped due to interference with the thread
take-up cover?
[Adjustment]
W1326Q
Loosen the hexagon socket head cap screw of the thread take-
up operating lever and adjust the take-up movable range.
Tighten it securely afterwards.
Are the needle bar clamp and the top dead center stopper
positioned correctly?
Check these points once again
!Stitches cannot be made. Is the needle attached properly?
Is the timing of the needle and rotary hook correct?
Thread take-up
Thread take-up cover
Needle case
Bolt
Thread take-up
operating lever