Kenmore 158.15160 zig zag problem
I received a Kenmore 158.15160 Model 1516, a basic zig zig machine. It also takes cams for different patterns. It seemed to clean up OK but when I tested the zig zag all it did was move the needle over to the left, and sewed straight stitch, basically as a left homing machine. There is no cam in the machine.
Does anyone know if a cam is required for it to sew zig zag, or is something still stuck?
This is an early 70s era machine, aluminum body but all metal inside and underneath.