~WBF
Thecallofthewildanswered1989-2017[PAID IN FULL!]
No manufacture has ever said that leg protection will ensure that you won't be cut? They are to minimize injury. Seems to be a big misconception about that.
The ASTM F 1897 is the lowest pro standard. The test meets 3,300 FPM threshold.
It dosen't meet EU, Aus, NZ or worksafe B.C. standards.
A 7 tooth 3/8 sprocket runs about 5000 fpm at 12,000rpm. 3300 fpm is 16.8 m/s
The new 572 runs 29.3 m/s. Add another 12.5% for an 8T. They also keep the trigger on at test speeds, in this case 3300 fpm
Having said that..The 6 layer chaps are fine as when the chaps get caught in the loose material then the teeth will yank the material away from the leg and then jam the chain down by the dogs. Sometimes you have to take the bar off to get the chaps out. Sometimes the clutch also in order to clean off the shaft.
Pants are different as they pull into the body and not away. Tight material VS cutting loose material. It is like cutting loose string with scissors vs pulling the material tight. If you come in contact across the knee with the knee bent then there's a really good change of being cut especially if you don't let go of the trigger instantly or with square chisel. I was with a friend in 1992 that cut most of the way through the bone under the knee cap. The pants were new that day when 3150 fpm were legal. I'm thinking he froze on the trigger doing a one handed back hand while falling a Pine. The saw was 37.7cc (377 Shindiawa)
My felling partner got 18 stitches across a bent knee in a pair of Pfaners pants a few yrs back with square chisel chain.
I have put a few teeth in my knee about three times. Once through new 4100 fpm pants. Usually it just pinches the skin.
I wouldn't worry about an electric saw with chaps . It will still jam up the chain.
The key is to take your finger of the trigger.
The ASTM F 1897 is the lowest pro standard. The test meets 3,300 FPM threshold.
It dosen't meet EU, Aus, NZ or worksafe B.C. standards.
A 7 tooth 3/8 sprocket runs about 5000 fpm at 12,000rpm. 3300 fpm is 16.8 m/s
The new 572 runs 29.3 m/s. Add another 12.5% for an 8T. They also keep the trigger on at test speeds, in this case 3300 fpm
Having said that..The 6 layer chaps are fine as when the chaps get caught in the loose material then the teeth will yank the material away from the leg and then jam the chain down by the dogs. Sometimes you have to take the bar off to get the chaps out. Sometimes the clutch also in order to clean off the shaft.
Pants are different as they pull into the body and not away. Tight material VS cutting loose material. It is like cutting loose string with scissors vs pulling the material tight. If you come in contact across the knee with the knee bent then there's a really good change of being cut especially if you don't let go of the trigger instantly or with square chisel. I was with a friend in 1992 that cut most of the way through the bone under the knee cap. The pants were new that day when 3150 fpm were legal. I'm thinking he froze on the trigger doing a one handed back hand while falling a Pine. The saw was 37.7cc (377 Shindiawa)
My felling partner got 18 stitches across a bent knee in a pair of Pfaners pants a few yrs back with square chisel chain.
I have put a few teeth in my knee about three times. Once through new 4100 fpm pants. Usually it just pinches the skin.
I wouldn't worry about an electric saw with chaps . It will still jam up the chain.
The key is to take your finger of the trigger.