15
16
19
20
©
21
22
23
24
25
27
26
Principal parts of the machine
15. Horizontal spool pin
16. Bobbin winder
17. Handwheel
18. Pattern selector dial
19. Power and light switch
20. Main plug socket
21. Bobbin thread guide
22. Upper thread guide
23. Face plate
24. Handle
25. Presser foot lever
26. Buttonhole stitch balance adjustment
slot
27. Foot speed control
28. Power cord