Stitch Length Regulator, I really need to break this into several parts. For now think of these images as a “how the parts relate to each other” as opposed to “this is the way it should look”.

Singer Model 66 Tear Down Index

• Singer Model 66 disassembled
• Singer Model 66 Treadle Handwheel Assembly
• Hook Driver Assembly and Feed Rocker Assemblies
• Singer Model 66 Needle and Presser Bar Area
• Singer Model 66 Stitch Regulator Assembly
• Singer Model 66 Upper Tensioner Assembly