Jack W4 Series User Manual

图 5-8（Figure 5-8）
7、滤油器的检查和更换（oil filter inspection and replacement）
过滤器有灰尘在上面，不能正常使用，每使用 6 个月后请进行检查或更换。
注：如果油按规定的油量加入，油窗喷出的油量异常、过弱、有气泡等现象时，请
及时更换或清扫过滤器（Oil filter, can't work smoothly with dust on it. Please
check or replace every 6 months.
Note: If the add the oil according to the provisions, but in the oil window
the oil shows abnormally, too weak, with bubbles, please promptly replace
or clean the oil filter.）
图 5-9（ Figure 5-9）
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！（Warning: In order to avoid any accident, before operating
please make sure power is off and motor is stopped.）
）

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