Jack JK-T1790 Manual page 23

7.切刀的安装方法 Installing the knife
警告
WARNING:
为了防止突然起动造成人身事故，请关掉电源，确认马达确实停止转动后再进行操作。
To protect against possible personal injury due to abrupt start of the machine, be sure to start
the following work after turning the power off and ascertaining that the motor is at rest.
英寸→mm 换算表
Inch→mmCONVERSION TABLE
切刀尺寸
Knife size
1/4
3/8
7/16
1/2
9/16
5/8
11/16
3/4
13/16
7/8
1
1 1/8
1 1/4
1 3/8
1 1/2
mm 表示
Indication of mm
6.40
9.50
11.10
12.70
14.30
15.90
17.50
19.10
20.60
22.20
25.40
28.60
31.80
34.90
38.10
请按如下的步骤更换新的切刀。
When replacing the knife with a new one, perform
as follows.
1) 卸下切刀固定螺丝○
片一起简单地卸下来。
Knife○ can be easily removed together with the
1
washer when removing knife retaining screw○
2) 用手按下切刀之后，如图所示把切刀和针板上面
的距离调整到 1～2mm，然后一定套上垫片，并拧紧
固定。
Adjust so that the knife, when lowered the knife
bar by hand, is spaced 1 to 2 mm away from the
top surface of the throat plate as illustrated
in the sketch. Then, be sure to place the washer
and tighten the knife retaining screw.
如果您手中的切布刀是用英寸表示时，可以查看英
寸→ mm 换算表用 mm 来设定切布刀的长度（切
刀尺寸） 。
When the cloth cutting knife you have is
indicated in inch, set the cloth cutting length
(knife size) in mm using the inch → mm
conversion table.
- 16 -
之后，就可以把切刀○
2
和垫
1
.
2