Brother Overlock MA4-B551 Sewing Machine Instruction Manual (Model EF4-B511/EF4-B531/MA4-B551) - 24 Pages. Lost your sewing machine's manual? We've got you covered! This instruction manual is the ultimate guide to unlock the full potential of your Brother Overlock MA4-B551. No more confusion or frustration—just clear, concise instructions right at your fingertips. What's inside? Everything you need to know from setting up to mastering your sewing machine and all its features.