Advice for chainsaw users.
Most chainsaw users (myself included) do not realize at first how fragile the cutting ability of a chainsaw is. The first time I used a chainsaw I thought it could cut anything. My brother told me about dirt and it took a few years before I realized how right he was. Dirt on a chainsaw chain is like throwing water on a fire. Here's what happens. You get a tree down and start cutting it up and pretty soon the saw is cutting through the log and close to the ground. Most people get somewhat careful at this point and try not to get the saw in the dirt but it almost always touches the dirt. Guess what? You just lost 50% of your sharpness. One micro second in the dirt, one touch of the tip of the saw in the dirt, and it's pretty much over. It will still cut but not as fast. Raise the log up on something, roll it some, or whatever it takes to cut it without EVER touching dirt. You have to treat the chain like it's a bomb and if it touches dirt your dead.
A chainsaw that is running good, has a sharp, tight, and well lubed chain will cut all day and tomorrow without a problem except to refill the oil, gas, and maybe a tension adjustment. My neighbor's son-in-law had a brand new saw out there trying to cut some ice storm damaged tree limbs. After cutting a few limbs on the ground and cutting into the dirt a few inches he spent the next thirty minutes trying to saw an 8 inch pecan tree limb off. It was funny to say the least. It was smoking so bad I thought he would catch the tree on fire. I couldn't stand it. I carried my $75 Craftsman over there sharp and ready and cut that limb off for him in about 10 seconds. You know what? He never changed. He never figured it out. Later he spent a month cutting up another fallen tree that way. Listen folks. Get your saw sharp, tight, and well lubed, and it will cut great for a long time if you never, never, never touch dirt. Did I emphasize the dirt thing enough? Any dirt will do your saw in. Got that? Oh yea...be careful. That saw will cut a groove in your leg or arm 4 inches deep in the time it takes to say Huh on the word Husqvarna. Be careful!