This common and simple repair will save you money and just may save an heirloom.
When a spindle becomes separated from or loose in its dowel socket, you can re-secure it quickly and easily.
After separating the spindle from the frame, use the 115 high-speed cutter to gently but thoroughly remove old glue from the rung and inside the dowel socket. Recommended speed: 20,000 rpm.
When clean, coat the end of the spindle with glue and wrap silk thread around the end to enlarge it.
Apply glue to the end of the spindle and the inside of the socket, then clamp and let dry.