So I was using my hammer drill to drill into some masonry when I ended up hitting the clutch to a lower setting. When this happened, the trigger remained pulled for a moment, but the bit nor the chuck rotated. I assume the clutch didn't align the gears properly.
So I rotated the chuck until it seemed it popped in place, and ran it for a second in that gear - all seemed well. I switched the clutch back to the hammer setting and rotated the chuck for the click. When I went back to drilling, the drill spat the bit at me and dinged me pretty good.
The drill's chuck isn't keyless, or at least I haven't tightened it without the key. Is what I've described an indication that the clutch loosened the chuck or should I be worried the drill is damaged? I went back and put the bit back in and had no more issues for a few more holes before I was finished.
Oh, and I was wearing safety glasses and the manual of the drill mentions nothing about the clutch. /Norm.