SWF MAN-12 - Upper Threading and Tension Adjustment

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8.1.5) Upper threading and tension adjustment
1) Upper threading
Upper thread stand
Upper thread
(from the upper
thread stand)
Sub thread adjuster
Thread tension
adjustment board
Thread detecting roller
Take-up lever spring
stopper
Take-up spring
Rotary tension disk
Main thread tension
adjuster
Upper thread guide
Thread guide (upper)
Take-up lever
Thread guide (middle)
Upper thread holder
Presser foot
Needle
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