17.THREAD TAKE-UP SPRING(FIG.22)
18.HAND LIFTER(FIG.23)
19.PRESSER FOOT PRESSURE(FIG.24)
Fig.22
Fig.23
Fig.24
1.Changing the stroke of thread take-up spring ①
1) Loosen setscrew ②
2) As you turn tension post ③ clockwise (in directon"A"),
the stroke of the thread take-up spring will be increased.
3) As you turn the knob counterclockwise (in direction
"B") the stroke will be decreased.
2. Changing the pressure of thread take-up spring①
1）Loosen setscrew②,and remove tension post③
2）Loosen setscrew④
3) As you turn tension post③ clockwise (in direction"A"),
the pressure will be increased.
4) As you turn the post counterclockwise ( in direction "B" ), the pressure will be decreased.
1. To stop the machine with its presser foot up, turn hand
lifter① in direction"A".
2. The presser foot will go up about5.5mm and stop.
3. The presser foot will go back to its original position
when hand lifter is turned down in direction "B"
4. Using the knee lifter, you can get the standard presser
foot lift of about 10mm and the maximumlift of about 13mm.
1. Loosen nut②. As you turn presser spring regulator①
clockwise (in direction"A"), the presser foot presser will
be increased.
2. As you turn the presser spring regulator counter clock
wise (in direction"B"),the presser will be decreased.
3. After adjustment , tighten nut②.
4. For general fabrics, the standard height of the presser
spring regulator is 29 to 30mm (5Kg).
6
30
④
A
B
①
①
②
③
①
A
B
②
①
A
B
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