29
[5]
OPERATION
OF
THE
SEWING
MACHINE
(BASIC)
1.Item
data
setting
If thread tension controller No. 1
❶
is turned
clockwise,the length of remaining thread on the
needle after thread trimming will be shorter. If it
is turned counterclockwise, the length will be
longer.
Shorten the length to an extent that the thread is
not slipped off.
Adjust needle thread tension from the operation
paneland bobbin thread tension with
❷
.
7.
Adjusting the thread take-up spring
The standard stroke of thread take-up spring
❶
is 8 to 10
mm, and the pressure at the start is 0.1 to 0.3N.
1) Adjusting the stroke
Loosen setscrew
❷
, and turn thread tension asm.
❸
.
Turning it clockwise will increase the moving amount and
the thread drawing amount will increase.
2) Adjusting the pressure
To change the pressure of the thread take-up spring, insert
a thin screwdriver into the slot of thread tension post
❹
while screw
❷
is tightened, and turn it. Turning it
clockwise will increase the pressure of the thread take-up
spring. Turning it counterclockwise will decrease the
pressure.
Summary of Contents for HK2900
Page 1: ......
Page 7: ...6 缝纫机机头 布压脚 线架装置 操作盘 电源开关 控制箱 踏板开关 2 各部的名称 1 主机的名称 ...
Page 23: ...22 外部线缆插头上有对应的编号 请仔细查看后对应接插 示意图 5 6 图 5 图 6 10 电缆线的链接 ...
Page 24: ...23 11 马达护罩的安装 把马达护罩 用附属的螺丝安装到缝纫机主体上 12 电线的处理 放倒缝纫机时 请确认机头支杆安装在机台上 在放倒缝纫机的状态 连接电线 如图所 示用线束夹 捆紧 ...
Page 27: ...26 穿过机针的线应留出 4cm 左右 3 上线的穿线方法 4 梭壳的取下插入 1 打开旋梭外罩 2 拨起旋梭壳 的抓脚 取出梭壳 3 插入时 请把梭壳深深插入旋梭轴 并关 闭抓脚 ...
Page 76: ...75 机台台板 ...
Page 93: ...12 2 Operation ...
Page 169: ...88 Table diagram ...
Page 170: ......
Page 194: ...2 4 5 6 7 9 2 3 6 8 1 23 HK2903 专用附件 EXCLUSIVE ACCESSORIE PARTS FOR HK2903 ...
