26
:
上线切线动作曲轴和限制板的调整
ADJUSTMENT
OF NEEDLE
THREAD TRIMMER HOLDER AND
LlMITING PLATE
缝纫机低速起动时(多钩
B
O
和钩
A
8
1
皮合时)
，拧松固定螺丝
ø
，让限限制板顶到阻挡曲
柄
@
。
上线切刀张开时，让上线切线动作曲柄
@
和动作凸轮
@
咬合
O.5mm
。
Loosen setscrew ø , and install and
a
句
ust
limiting plate 0 so that
it
comes in contact with the blocking arm
@)
at the time
of
slow start
of
the machine (When latch B 0 is engaged with latch A8 ).
Needle thread trimmer holder
0 should be installed in such manner that it engages with cam
fj
by O.5mm
(1/64") when the needle thread trimmer opens.
27:
切刀落刀时期的调整
TIMING
FOR DROPPING THE KNIFE
6
拧松固定螺丝
0
，向箭头方向移动切刀动
作凸轮
8
，
切刀落刀时间提前，反则推迟
。
缝
纫机停止的
2-3
针前让切刀落刀
。
Loosen screw 0 , and move knife tripping segment
8 in the direction shown by the arrow
, and the knife
will drop earlier. adjust it so the knife drops two to
three stitches before the machine stops.
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