You learn something every day...
I just watched a DVD I bought from a Stihl chainsaw dealer. It is produced
by Stihl and is called: "Chain Saw Safety, Maintenance, and Operation".
This is an excellent DVD from which I learned quite a bit. The chain
sharpening part taught me about using a "depth gauge" along with all sorts
of stuff I never heard of before. Basically how to do it right, when to
sharpen, how to tell from the cuttings if a chain is sharp or not, etc.
Also this DVD is *excellent*
on the topics of safety, maintenance, and goes
into extensive detail about felling trees, cutting down trees, and various
situations you may encounter while doing this.
Everyone who uses a chainsaw should see this DVD. Unfortunately I can't find
anywhere that sells them online???
But here is a link which gives an address to order the DVD from the company
which I guess made it for Stihl (Red Letter Communications)....