SWF E-Series

21
THREADING AND TENSION
THE UPPER THREAD PATH
CHAPTER 6
Upper thread
(From thread stand)
Sub-tension
adjusting device
Thread tension
adjusting plate
Detecting roller
Thread take-up spring
Thread take-up
spring stopper
Rotary tension disk
Main-tension
adjusting device
Thread guide
Thread guide (Upper)
Thread Take-up lever
Thread guide (Middle)
Upper thread holder
Presser foot
Needle
Thread guide
single screw
Thread guide spring
Thread guide
presser plate
Thread guide
base plate