I don't have that helicopter so don't have a video on it specifically, but it seems very close to my little Align SE V2 which is my only belt driven helicopter that I really flew. Sounds like you will just need to take out the main shaft and head assembly which will release the main gear and auto gear (auto gear is what the belt rides on) and from there, you can replace the gear if needed. If you need to replace the belt, then you will also have to remove the tail shaft and remove the belt. Remember which way it twists because if you put it in backwards, it spins the tail blades backwards and it freaks out when you spool it up.