Good catch TG [smiley=thumbsup.gif],
Theyre HUGE alright :o. I guess its the same as for any grinder really, strip the top section back so that you can access all parts that come into contact with coffee. Unless it makes any strange noises there probably isnt any reason to strip it back to the bare motor, etc but maybe if you just want to know that all is good, this might be a worthwhile thing to do.
Would probably be a good (and healthy) idea to strip the Doser down and give it a thorough cleaning, you never know what might have crawled in there while its been sitting around waiting for you to find it. Should be a real beauty though once you get her ship-shape 8-). All the best mate,