Atl

I was just wondering if there is a way to lube the a.c. fan or blower, not really sure what the proper word for the part is. When I run the a.c., i get an infrequent chirping or squealing noise coming thru the vents. Dealer says it might be dust or lint caught in the fan. Can you even access this? Is it something I could do? I thought if I could reach it, a little squirt of WD-40 might do the trick.

What do you guys think?