The gallery below shows the handwheel and the steps to remove the parts all the way down to the drive shaft.

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