I don't have your particular machine, but I do own several other Singers. On my machines, you use the zig-zag adjustment button to change the needle position. In other words, put your machine on straight stitch, then touch your zig-zag adjustment (whether it's a button or a lever or a knob), and see what happens. Hope that's clear!! Also, be sure to check out YouTube - chances are, someone has posted a video about how to use your machine!