I don't know if this is going to the list, but here goes.

I have a Heathkit SB-220 that sat unplugged for over two years.

Before i start using it again i want to open it up and clean out the 
dust and what ever.
Is this something i can do myself, or will i need sighted help?

If i can do it myself, what is the best way to go about doing it?

Thanks in advance for any help, and 7 3.