1L
..
~~~(008
..
009
..
0010) I
Thread
tension asm. (Fig.8
..
Fig.9
..
Fig.10)
008
Fig.8
009
Fig.9
m~*n~~~(008~~):
~~~~~~~~*n~*o
*~*n~~~(009~~):
~~~~~~~~*n~*o
*m~~**
(OOIOJi)f~)
19tilt~~~*10Co
To
adjust needle thread tension
is
accordance what sewing working
condition,we can adjust needle thread tension
by
tension spring.Tum
the tension nut
clocwise
to increase to increase the tension; turn
counter-clockwise to decrease the tension.
To adjust bobbin thread tension:
Turn tension screw clockwise to increase the tension;turn tension
screw counterc lockwise to Tension; tum tension screw counterclockwise
to decrease the tension.
The relation between the needle thread and the bobbin thread as
shown
in
(Fig.l 0) depicts the forming
of
chain stitch.
0010
Fig.lO
f{ij~
Needle thread
}ij;~
Bobbin thread
+
..
ffiJJ141(0011
..
0012) I Presser foot (Fig.11
..
Fig.12)
0011
Fig.
II
0012
Fig.l2
ffi}l!pffin~~~
(0011)
:
J®i~~~ffilm!~ffit~n.
ffin
*~·
&~~ffin~-0~
H~Mffi~.
ffilm!
~ffit~tJ~;J>ifliWJil1927-30mm
(5*
JT)
tr.~
o
¥Rffilml~~~m~ffiW,
R¥reffilm!fi~~tr.~~~~
~
ep
l=iT
( m
12)
0
Adjustment
of
pressure on presser foot (Fig.
II)
Turn pressure regulating thumb screw clockwise to increase the
pressure; turn pressure-regulating thumb screw counter-clockwise
to decrease the pressure.For general fabric the standard height
of
pressure regulating thumb screw is about 27-30mm (5kg)
The presser bar lifter shall be turned either leftward or rightward
in
order
to
keep
the
presser
foot
under
the
condition
of
lifting
position.
-5-
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