Jack W4 Series User Manual

五、缝纫机的使用方法（Methods to use sewing machine）
注意：为了防止机器突然启动造成人身事故，请关掉电源，确认电机确实停止转动
后再进行操作！（Note: In order to prevent personal accident caused by the
sudden start of the machine, please turn off the power, make sure the
motor does stop running and then operate!）
1、机针的安装方法（Needle installation method）
安装机针时，机针头部需要完全插入针古里，且机针凹槽部位向里侧。（When
installing the needle, the needle head needs to be completely inserted into
the needle, and the needle groove is to the inside.）
图 5-1（ Figure 5-1）
注意：为了防止机器突然启动造成人身事故，请关掉电源，确认电机确实停止转动
后再进行操作！（Note: In order to prevent personal accident caused by the
sudden start of the machine, please turn off the power, make sure the
motor does stop running and then operate!）

Jack W4 Series Specifications

General

Number of Threads	3 or 4
Type	Overlock
Lubrication	Automatic
Motor	Servo motor
Stitch Types	Overlock
Bobbin	None (uses loopers)
Speed	Adjustable
Presser Feet	Standard Overlock Foot