5-5) Upper Threading And Tension Adjustment - SunStar SWF/B Series User Manual

5-5) UPPER THREADING AND TENSION ADJUSTMENT

1) Upper Threading
Upper thread
stand
Upper thread
(from upper
thread stand)
Sub tension
adjuster
Thread tension
adjustment board
Thread
detecting roller
Take-up
spring stopper
Take-up spring
Rotary tension
disk
Main tension
adjuster
Upper thread
guide
Thread guide
(upper)
Take-up lever
Thread guide
(middle)
Thread guide
(lower)
Upper thread
holder spring
Presser foot
Needle
[Fig. 5-9]