SWF E-U901 - Upper Thread Placement and Tension Adjustment

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8.3) UPPER THREAD PLACEMENT AND TENSION ADJUSTMENT
8.3.1) Upper Thread Placement
Upper Thread Stand
Upper Thread
(coming from the upper thread
stand)
Auxiliary Thread Adjusting
Device
Thread Tension Adjusting Plate
Thread Sensing Roller
Thread Take-up Lever Spring
Stopper
Thread Take-up Spring
Rotary Tension Dish
Main Thread Tension Adjusting
Device
Upper Thread Guide
Thread Guide (high)
Thread Take-up Lever
Thread Guide (middle)
Thread Guide
Upper Thread Holder
Presser Foot
Needle