У вашего броузера проблема в совместимости с HTML5
Sorry about the sound of rain just as I started it
Make sure you clean the disc with brake cleaner afterwards or before if you are using discs which come with a anti-rust oil film.
Also check that sliders are not seized if they are seized use silicone grease or lithium but do not use copper grease
caliper bolts: 13mm
carrier to hub: 19mm
here is a website for all you copper grease haters
http://www.copper-grease.com/copper-grease-and-brake-pads.html