Hard to document in words, but I use a circling motion. Picture the spiral winding of a notebook as a reference to the motion. The cord pulls the the gasket towards the middle of the glass stretching it open, then back towards the frame to let the gasket work over the lip and repeat, don't expect large gain on every revolution, but movement is movement and lube is cheap. This will help keep from tearing the gasket and gets it up on the lip pretty painlessly. Don't expect to get the gasket to "seat" until the gasket is over the lip all the way around. I think this is where glass gets broken as it is expected to bend into a "home" position at one end of the glass before the other end is fully started over the lip of the frame.