The inertia chain brake is a very important safety feature of the modern chain saw. Since kickback occurs suddenly and with great force most people cannot react fast enough to activate the chain brake manually. The chainsaw brake handle, brake spring, and band are designed to be of the perfect weight and tension to activate at kickback by the rapid movement of the saw.
Depth gauges filed too low make the chain grab at the wood and may negate the benefits offered by safety chain. Full safety chains have extra bumper links between the cutting links, maintaining nearly full depth gauge height along the full extent of the chain and reducing the risk of kickback to very low levels. Modern “Professional” chains offer far higher cutting performance than full safety chain, and offset their increased risk with an assumption of a much higher degree of operator competence.
what is a chainsaw brake Related Question:
Do all chainsaws have a chain brake?
All chainsaws must have chain brakes that comply with ISO 6535:2008 Portable chain-saws — Chain brake performance.
Is a chain brake necessary?
The inertia chain brake is a very important safety feature of the modern chain saw. It improves the safe use of the chainsaw in 3 separate ways: It acts as a hand guard protecting your left hand from being slapped and stabbed by tree branches while limbing, bucking, and clearing.
What happens if you run a chainsaw with the brake on?
Running a chainsaw with the brake on can be dangerous for you and anyone in your vicinity. The chainsaw will not cut, but it still creates sparks that can cause fires or startle nearby pets. It also doesn’t allow the saw to cool down enough which increases the likelihood of overheating and breaking down.
Will a chainsaw start with the chain brake on?
Check the Chain Brake When using a chainsaw, you should always start it with the chain brake engaged so the chain does not move.
When did chainsaws get brakes?
When Did Chainsaws Get Brakes? In 1972, a manual chain brake bar was included with Stihl chainsaws which allowed the user to stop the chain from spinning when the bar was pressed. Also, in 1973 the Husqvarna company invented the automatic chain break with stops the chain immediately after kickback.
Why does a chainsaw chain break?
Chainsaw chains usually break while the chainsaw is in use. It will fly off of the chainsaw at high speeds and can cause severe damage to whatever it touches, especially if the chain ricochets off of the impact site. Chainsaw chains break when they are incorrectly used and not maintained properly.
Are old chainsaws safe?
Not too many years ago, chainsaws represented a significant safety risk to the user. Even when used by sensible adults there were many design flaws that posed potential serious injury risks. Recent inventions, however, have dramatically improved the design of these handy tools, making them much safer and easier to use.
What’s the safest chainsaw?
Chainsaws are useful when doing work on your home, but they can feel dangerous to use. It’s not too bad if you know what you’re doing, but it’s so easy to make one wrong move—and then it’s game over.
What is a chainsaw chain catcher?
The chain catcher helps prevent the chain being thrown back towards the user, if the chain breaks or becomes derailed. The catcher catches the chain when it derails downwards and shortens it.
Do you start a Stihl chainsaw with the brake on?
On a gas-powered Stihl chainsaw, the chain brake is located just in front of the handlebar. All you have to do to activate it is push it forward. This will keep the chain locked as a safety precaution while you are starting the chainsaw, and until you are ready to use the tool.
Can you cut tree roots with a chainsaw?
Once you’ve sliced the stump almost all the way to the ground, continue cutting it — and the soil — diagonally and at different angles. Don’t go more than a foot into the soil. Chainsaws are powerful machines, and you don’t have to worry about dirt damaging it or knocking the chain off.
When should I use choke on my chainsaw?
The choke position is the fourth setting on the master control lever. This setting is used to start the saw when its motor is cold. Stihl chainsaws denote the choke position using a nearly horizontal squiggle between two vertical lines at the lowest position on the master control lever.
How do you start a stubborn chainsaw?
Try to start the chainsaw after priming the carburetor. 5. Activate the choke by moving the lever to the full choke position and pull the starter rope 3 or 4 times to start the engine. If that doesn’t work, move the choke lever to half choke and pull the starter rope, 6 times maximum, to start the engine.
Was the chainsaw invented for childbirth?
Two doctors invented the chainsaw in 1780 to make the removal of pelvic bone easier and less time-consuming during childbirth. It was powered by a hand crank and looked like a modern-day kitchen knife with little teeth on a chain that wound in an oval.
Do Electric chainsaws have chain brakes?
40 volt Lithium Ion XR is a brushless motor chainsaw. The 16-in. bar and chain (made by Oregon, mentioned above) comes with a chain brake to prevent kickback, and is also auto-oiling.