Does anyone know where I can get my Jolly Chimp fixed or instructions on the inside where all the gears are?

The title says it all but if you want more info, is that I bought it at a flea market and he said it doesn't work, so I want to fix it myself, I found a small gear piece that might of fallen out years ago but I still have it. This what it looks like http://www.petpeoplesplace.com/petstore/pet-image-large/jolly-chimp-mechanical-clapping-monkey-box-not-working_110688476295.jpg