Jack W4 Series User Manual

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!）
2、出厂注油（Adding oil）
机器出厂首次使用或较长时间没有使用缝纫机时，请一定向针杆滴 2-3 滴机油，
滴在针杆扎头与针杆的连接处，确保针杆机构润滑。（When the machine is used
for the first time or when the sewing machine is not used for a long time, be
sure to drop 2-3 drops of oil to the needle bar and drop it at the junction of
the bar head and needle bar to ensure the needle bar mechanism is
lubricated.）
被加油机构（Oiled mechanism）
图 4-2（ Figure 4-2）

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