11
22
Names of machine parts
① Arm
② Bed
③ Oil pan
④ Face plate
⑤ Upper cap
⑥ Oil window
⑦ Knee-lifting cylinder
⑧ Upper shaft pulley
⑨ Thread-adjusting device
⑩ Oil gauge
⑪ Looper cam cover
⑫ Differential feed regulating screw
⑬ Differential feed regulating lever
⑭ Presser foot
⑮ Main feed regulating button
⒃ Air wiper
⒔ Power switch
⒕ Bobbin stand
Safety devices
⒖ Thread guide cover for needle thread
⒗ Thread take-up lever cover for needle thread
Finger guard
Safety plate
⒔
⑪
③
⑫
⑬
②
⑭
⑮
⒃
⒗
④
⒖
⑥
⑤
⒕
⑦
⑧
⑨
①
⑩