Jack JK-T1377E - 压脚压力的调节（Adjustment of the Button Clamp Stop Lever; 松线同步时间的调整（Timing of Thread Tension Release

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15. 压脚压力的调节（ADJUSTMENT OF THE BUTTON CLAMP STOP LEVER）
16. 松线同步时间的调整（TIMING OF THREAD TENSION RELEASE）
沿箭头方向拉机线，转动手轮，有一个第二线张力盘浮起，机线迅速拔出的点。此时，从
针杆上端块上面到针杆上面到 针杆上端的高度为T1377E使用53～56mm时为标准。
特别是频繁发生下列现象时，进行如下调节：
拧松螺母，把螺丝刀插入第二线张力杆，沿箭头方向转动的话，针杆高度变低，向相反
方向转动，则变高。
现象
针杆高度
1.布料里侧的紧线不好时
稍稍高一点
2.断开时，机针中途断线时
稍稍高一点
3.经常断线时
稍稍低一点
Phenomenon
Height of
needle bar
1.when the stitch made on
the wrong side of the
workpiece is too loose;
Make the
needle bar
slightly
higher
2.When the thread is
broken at the time of stop
-motion;
Make the
needle bar
slightly
higher
3.When the thread is
broken frequently
Make the
needle bar
slightly
lower
在断开状态，拧紧固定螺丝，用
爪脚打开拔杆开关打开爪脚，
把纽扣设定到正确的位置。让纽扣
容易放进取出，然后拧紧螺丝。
Set the machine for stop -motion
state ,loosen clamp screw place a
button correctly in the sewing
position and adjust button clamp
stop lever  to permit the button
properly to rest on button clamp
jaw levers .tighten clamp screw 
after determining the distance
between the left and right jaw
levers
Turn the needle driving pully as you draw
the thread in the direction of the arrow as
illustrated abd you will find a piont at which
the tension disc on the tension post No.2
release the thread ,At this moment, the
standard distence from the top end of the
needle bar to the top of the needle bar
bushing is 53 to 56 mm for T1377E .Perfom
the following adjustments especially when
the undermentioned troubles occur
frequently.
Loosen nut , insert the blade of a
screwdriver to the top slot of the tension post
No.2 and turn it in the direction of the arrow
to lower the needle bar ,(to reduce the said
distance ),and vice versa .Your adjustments
is required when following troubles are
freqently;