What to do about a loose sealed hub?
I have a one year old Masi with sealed hubs and just about a week ago I noticed I could move the front wheel side to side by just a tiny amount. I realized that the hub was ever so slightly loose. I only put about 2000 miles on it since I got it and it seems weird that the front hub would be shot. I asked a mechanic at the bike shop and he told me I can tighten it with cone wrenches and it should be fine. I have to say I'm totally confused… I'm kind of new to this so I did some research and seemed to realize that sealed hubs cannot be adjusted so if there is any loose you just get a new one. Is that correct? If so what is the point of the two nuts on the outside of the hub that look like a cone and lock nut? And why would the mechanic tell me to tighten those? He even pointed out that they were sealed…
Any advice would be hugely appreciated! Do I need a knew hub? Is there a part inside the hub that can be replaced? Why would it be loose in the first place?
Cheers!