Put the parking brake on, grab the belt, and pull up and torwards the back of the sled. It will open the sheaves and make for easy removal. To put back on, release the brake, get the belt on the primary and start it on the secondary, and while pulling on the belt, put the secondary sheave back towards the brake, to open it up. The belt will then slide up into the sheave and you can slip the rest on with ease. They just get the belt to sit back where its supposed to. I think i'm going to make a video on this as it seems to come up very often.