Quite often on boxlocks, rather then take the entire mechanism apart I'll soak it in solvent overnight (I like to use Coleman lantern fuel) and then take a spray can of brake cleaner (with the long red plastic tube) and use that to blast the loosened up crud fom the tight spots within the mechanism (an air hose can be useful here too). Then I'll let it dry for several hours (or quick dry it with an air hose) and finally I use a can of spray lubricant (again with the red plastic tube) to relube the mechanism. It's a good idea to stand it up on end for a few hours and let any excess spray lube run out before putting the stock back on.
Steve
