Hello,
Was obsessed with thought of disassembling 20 year old hand mixer that recently had its gear stop working. It's been through several repairs by repair shops already.
So far it's very interesting and I wonder if I can fix malfunctioning gear. It used to stop at every speed with a clicking sound but now it just freely turns. There are short and long metal rods that are supposed to contact each hole on plastic plate responsible for certain speed but I noticed that there is a gap between them and plastic plate.
I later found a spring and a small piece of broken plastic inside the hand mixer and put it in a switch (marked with red arrow) but don't know what they are for. After more careful inspection it's clear that plastic arch was part of rotating circle in gear until it broke.
It was a fun time tinkering with old mixer I gotta admit. Don't think Super Glue will hold both parts together. JB Weld will do probably... Sorry for messy shots of dirt and flour inside