Okay, this is scary to watch. I have personally seen wounds on guys wearing [good quality] chainsaw pants. I have never heard anyone officially or unofficially say that they will stop you from getting cut. They are designed to drastically lower the severity of a chainsaw injury. They have a kevlar pad that is supposed to be independent of the rest of the pant and as you saw the fibres are supposed to pull out and clock up the drive. Pants here are generally rated for chain speed, and the most common ratings are 3600 or 4200 rpm and its never said that this is without the skin being cut. Without a load the saws we run hit 14,000+ rpm. Most guys on the coast run Husqvarna 390s and they are almost always modified by professional saw builders (mufflers opened up, ports polished, non-governed ignition coils, thinner gasket for tigher squish etc). These saw are substantially faster and more powerful than the saw in this video. Please for christ sake don't ever try this. I'd also like to point out there wasn't a lot of force applied to his leg which I bet would have created a severe cut. Chainsaw kickbacks are severe and violent. I have seen nasty deep cuts from chainsaws that weren't even turned on. I'm the furthest thing from a safety nazi, but this video is stupid and asking for a severe injury.
Edit: Just tried to find some training videos i have seen in the past where they use some big hams and show chainsaws going at them with or without pants and without pants it was insane to see, and with pants it was still a severe injury. Couldn't find it.
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sal9000 (Old Spike)
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Woodsman (Old Spike)
Good find. This might have been it but i remember seeing one where the saw went through.
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theblackswordsman (Old Spike)
I love the do it yourself as much as the next guy but I don't touch saws or grinders for those reasons. Too much Random chance for accidents for my liking, and with these injuries you might not get a second chance to get it right.
They should invent a saw that never kicks back.
Or is that impossible?
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Woodsman (Old Spike)
They have anti-kickback chain that has a little ramp before the rakers (rakers are the depth gauge that you file to determine how aggressively/deep the tooth bites in). I have no experience with these chains because nobody that works in a production capaticy uses them, because they don't cut as smooth or as fast. I assume they work a bit. Kick backs happen when the chain bites in hard or binds in the cut and the tip (being a wheel) forces the bar upward because the chain is stuck in the wood. Generally speaking you don't get kick backs if the top portion of your tip isn't used for cutting. Having said that, being smooth and controlled, you can cut with your tip (there are lots of situations that we have to have 'bore' or 'plunge' the bar tip first into the wood). I have experienced many kickbacks, and the way to stay safe is to keep you thumbs wrapped around the handlebar, position body so that the you have good leverage on the saw (avoid reaching too far away from you), and don't sight down the bar so if it does kick back, your face/body isn't in the natural path the kickback will happen. People that aren't comfortable with chainsaws will feel safer keeping it as far away from them as possible, but as long as you are controlling where the bar/chain are, it is safer to keep the powerhead reasonable closer to you so you are using good strong body mechanics. Also, using a dull chain makes people push hard when cutting, so when the cut is completed their body is a spring and the saw gets pushed very quickly in the direction you are pushing on it. Wearing PPE is good. I'm far from a safety nazi, but PPE is smart to wear. I don't wear safety glasses because they fog up and become a hazard. Nearly all fallers on the coast use a mesh screen that flips up and down attached to their hard hat. Sorry for this being a disorganized reply, I'm tired today!
Also when you mentioned grinders, hand held angle grinders are similar, never hold it so your face is on the same plane it is spinning. I've had disks blow up due to damage while at high rpm and its definitely exciting. Bench grinders I always start while standing to the side and let it get to full rpm before standing in front to work.
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Woodsman (Old Spike)
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daftcunt (Old Spike)
This presentation is so fucking annoying. 3 or 4 "experts" explaining in turns what is happening. They did this on newer episodes of "how do they do it" but I think they (thanks!) stopped this again.
Comments
(Old Spike)
Okay, this is scary to watch. I have personally seen wounds on guys wearing [good quality] chainsaw pants. I have never heard anyone officially or unofficially say that they will stop you from getting cut. They are designed to drastically lower the severity of a chainsaw injury. They have a kevlar pad that is supposed to be independent of the rest of the pant and as you saw the fibres are supposed to pull out and clock up the drive. Pants here are generally rated for chain speed, and the most common ratings are 3600 or 4200 rpm and its never said that this is without the skin being cut. Without a load the saws we run hit 14,000+ rpm. Most guys on the coast run Husqvarna 390s and they are almost always modified by professional saw builders (mufflers opened up, ports polished, non-governed ignition coils, thinner gasket for tigher squish etc). These saw are substantially faster and more powerful than the saw in this video. Please for christ sake don't ever try this. I'd also like to point out there wasn't a lot of force applied to his leg which I bet would have created a severe cut. Chainsaw kickbacks are severe and violent. I have seen nasty deep cuts from chainsaws that weren't even turned on. I'm the furthest thing from a safety nazi, but this video is stupid and asking for a severe injury.
Edit: Just tried to find some training videos i have seen in the past where they use some big hams and show chainsaws going at them with or without pants and without pants it was insane to see, and with pants it was still a severe injury. Couldn't find it.
(Old Spike)
(Old Spike)
Good find. This might have been it but i remember seeing one where the saw went through.
(Old Spike)
I love the do it yourself as much as the next guy but I don't touch saws or grinders for those reasons. Too much Random chance for accidents for my liking, and with these injuries you might not get a second chance to get it right.
They should invent a saw that never kicks back.
Or is that impossible?
(Old Spike)
They have anti-kickback chain that has a little ramp before the rakers (rakers are the depth gauge that you file to determine how aggressively/deep the tooth bites in). I have no experience with these chains because nobody that works in a production capaticy uses them, because they don't cut as smooth or as fast. I assume they work a bit. Kick backs happen when the chain bites in hard or binds in the cut and the tip (being a wheel) forces the bar upward because the chain is stuck in the wood. Generally speaking you don't get kick backs if the top portion of your tip isn't used for cutting. Having said that, being smooth and controlled, you can cut with your tip (there are lots of situations that we have to have 'bore' or 'plunge' the bar tip first into the wood). I have experienced many kickbacks, and the way to stay safe is to keep you thumbs wrapped around the handlebar, position body so that the you have good leverage on the saw (avoid reaching too far away from you), and don't sight down the bar so if it does kick back, your face/body isn't in the natural path the kickback will happen. People that aren't comfortable with chainsaws will feel safer keeping it as far away from them as possible, but as long as you are controlling where the bar/chain are, it is safer to keep the powerhead reasonable closer to you so you are using good strong body mechanics. Also, using a dull chain makes people push hard when cutting, so when the cut is completed their body is a spring and the saw gets pushed very quickly in the direction you are pushing on it. Wearing PPE is good. I'm far from a safety nazi, but PPE is smart to wear. I don't wear safety glasses because they fog up and become a hazard. Nearly all fallers on the coast use a mesh screen that flips up and down attached to their hard hat. Sorry for this being a disorganized reply, I'm tired today!
Also when you mentioned grinders, hand held angle grinders are similar, never hold it so your face is on the same plane it is spinning. I've had disks blow up due to damage while at high rpm and its definitely exciting. Bench grinders I always start while standing to the side and let it get to full rpm before standing in front to work.
(Old Spike)
(Old Spike)
This presentation is so fucking annoying. 3 or 4 "experts" explaining in turns what is happening. They did this on newer episodes of "how do they do it" but I think they (thanks!) stopped this again.