Singer 2503 Instruction Manual (Model 2503) - 66 pages. Lost your serger machine's manual? We've got you covered! This instruction manual is the ultimate guide to unlock the full potential of your White 2503. 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 serger machine and all its features. The physical copy of the instruction manual is a soft-cover printed photocopy.