Knowing your sewing machine, Principal parts, Top cover – Brother 681B-UG User Manual
Page 4: Zigzag width lever, Upper thread guide and bobbin winder, Tension disc, Front thread guide, Face plate, Thread cutter, Presser foot screw

1. Knowing Your Sewing Machine
Principal Parts
1. Top
Cover
2. Zigzag Width Lever
(See page 12)
3. Upper Thread Guide and Bobbin Winder
Tension Disc
4. Front Thread Guide
5. Pressure Adjuster (See page 13)
6. Face
Plate
7. Thread Tension Dial (See page 15)
8. Thread Cutter
9. Presser Foot Screw
10. Presser Foot (Zigzag)
11. Feed Dog (See page 14)
12. Needle Plate
13. Needle Clamp Screw
14. Shuttle Race cover
15. Drop Feed Knob (See page 14)
16. Reverse Sewing Button (See page 14)
17. Stitch Length Dial
By turning this dial, you can control the
length of the stitch.
The higher the number, the longer
the stitch (See page 12)
18. Blind Stitch & Stretch Stitch Lever
19. Spool Pins
20. Bobbin Winder Device
21. Balance Wheel
22. Stop Motion Knob
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