Fi, Setting Bobbin; 7, Threading Ofbobbin Thread; Tl Balance Of Thread Tension; Y, Lower Thread Tens Ion - HIGHLEAD GC24628-1 Instruction Manual

Post-bed compound split needle bar feed lockstitch sewing machine
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2) Pressing the stitch length adjusting lever for reverse stitching.
6. Setting bobbin ( Fig.lO):
Dial
0
.
Feed reverse
lever
Fig.lO
Leading the lower thread and install the bobbin
Pull out thread from side A, then install the bobbin case , Threading following
CD--®;
Put the bobbin case
to rotating hook, then replace hook shaft; Press the bobbin bar, Leading the lower thread over bed plate.
7. Threading of bobbin thread (Fig.ll):
While holding the needle thread by left hand, rotate the hand wheel one turn by right hand. By pulling up
the needle thread, the bobbin thread will be lifted. Close the slide plate (Fig.ll)
A
0
,.? ;:::;;;;.
I
I t ?
Balance
tens1on
B X
_,>:::::::~
1
1
~
e
TIOh·t
needle or loose
bobbin tan&ion
ex..?'-<~
..--
Loo&en neeae
Of
ugnt
8. Balance of thread tension (Fig.12):
9. Lower thread tension (Fig.13):
bobbin tenston
.----~
I
Fig.l2
There is virtually no need to adjust the lower thread tension, except for special kind of the fabrics or thread,
when slight adjustment will be necessary.
Turning the screw 1 clockwise will increase the tension of
lower thread, otherwise, the tension of lower thread will decrease.
(Fig.l3).
10-. Upper thread tension (Fig.14):
1) The upper thread can be adjusted based on the lower thread
tension.
2) Adjustment can be done by rotating the thread tension nut.
- 4 -
Figl4

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