I've owned an Evolution Rage-3 mitre saw (http://www.evolutionpowertools.com/uk/build/rage3.php) for about fifteen months. About a week ago the guard that covers the blade started to stick, and now it won't move at all.
The mechanism for the guard seems to be straightforward (it should move out of the way as I push the blade down to make a cut), but I'm not much of a mechanic so I'm struggling to work out what's wrong. What can I try to free up the guard?