The INSTRUCTION MANUAL SINGER 15-96 & 15-98 SEWING MACHINES is an electronic copy of the original guide, designed for owners who want reliable, factory-correct operating instructions. It covers essential procedures such as threading, bobbin winding, tension adjustment, stitch length control, lubrication, and routine maintenance for both Singer models. Whether you are restoring a vintage machine or keeping a dependable workhorse in service, this manual helps you reduce guesswork, avoid costly errors, and protect the machine’s performance. Available from SEWINGMACHINEORIGINAL.COM, a trusted source for sewing machine repair, parts, accessories, and sales.