25:
上线切线的调整
ADJUSTMENT
OF THE NEEDLE THREAD TRIMMER
食
Attaching
the
trimmer
食
切刀的安装
拧松螺丝
0
，下降压脚使压
l
响
18
和切刀
@
不相碰
。
上线可以剪短
。
但是缝纫布层时，压胸
l
会倾斜所以把切刀
的位
置
安得稍高
一
点
。
食
切刀关闭的同步时间
切刀伸到最长时，调整切刀关闭的同步时
间
。
拧松螺丝
ø
，把上线切刀
ï;/
J
作板
A
0
前后
移动，来调节
。
往前移动关闭的同步时间推迟，
可时关闭
量
也
变少
。
(注意)切刀关闭之后，请确认还应有
0.3
---0
.5
rnm
左右的富裕
。
没有关闭
富
裕时，切刀上线切
刀动作板相接
触
压脚提升拔杆
@
变重
。
食
切刀张开的同步时间
调整切刀使要切刀在从开始缝的
2.5-3mm
左右的地方，渐渐的开始张开
。
拧松螺丝
ø
，
前后移动上线切刀动作板
B
{3
来进行调节
。
向前
移动张开时间提前
。
(注意)定位的上线切刀动作板
A
一
定不能偏斜
。
Loosen setscrew 0 , and adjust the height
of
trimmer
@)
. Set the height
of
trirnmer
@)
as low as possible, pr-
ovided
由
at
it does not touch work clamp check 8 ,
in
order to rninirnize the length
of
remaining thread on the
needle after trimrning
食
Closing
timming
of
the
needle
thread
trimmer
Adjust the closing tirning
of
the needle thread trirnmer so that the trirnmer completely closes when
it
adva-
nces farthest .
To perform the adjustment
, loosen screw ø, and move needle thread trirnmer driving plate A 0 back and forth,
When the n
eed
le thread trirnmer driving plate is moved towards you, the closing tirning is delayed with redu-
ced amount
of
closing.
(NOTE)
Conf
irm
that
an
allowance
of
0.3
to
0.
5mm
is
le
白
between
the
blades
of
the
trimmer
when
the
trimmer
has
completely
closed
.
If
there
is
no
such
allowance
the
trimmer
would interfere with
the
operation
of
the
needle
thread
trimmer
driving
plate
, preventing
smooth
movement
of
lifting lever 0.
食
Opening
timing
of
the
needle
thread
trimmer
Ad
ju
st the timiog
of
the thread trimrner so that the trirnmer begins to open gradually at a distaoce
of
approx.
2.5 to 3mrn (3/32" to
118")
from the start.
To pertorm the adju
st
ment loosen screw ø , and move n
ee
dle thread trimmer driving plate B
{3
back and
forth. As it movestowards you
, the trirnmer begins to open earlier.
(NOTE)Take
care
not
to
cause
the
already
fixed
needle
thread
trimmer
driv
in
g
plate
A
to
get
out
of
position.
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