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.
Chain Brake: Located on the top handle of the chainsaw, the chain brake is used to stop the chainsaw chain from rotating around the bar. Always start your chainsaw with the chain brake engaged so the chain does not move. The STIHL Quickstop® chain brake is designed to stop the rotation of the chain if activated by the operator’s hand or by inertia if the saw kicks back with sufficient force.
Starting a chainsaw can be somewhat of a challenge for some and, depending on the temperature outside, on the make and model of the chain saw and the maintenance history and condition of the saw, starting can require some patience. Continue pulling the chainsaw starter until the engine starts. Once the chainsaw has started, hit the throttle once and then release to make the engine speed idle.
how do chainsaw brakes work Related Question:
Why do chainsaws have chain brakes?
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.
Can you start a chainsaw without brake?
A good-running chainsaw will start with the chain brake on or off; this means if your chainsaw is in perfect condition, it will start with or without the brake on. You can throttle it up a little, but the chain won’t move if the brake is engaged.
What is the most common chainsaw injury?
The most common hazards associated with chainsaws are injuries caused by kickback, pushback, and pull-in. Kickback is the most common and poses the greatest hazard. Kickback occurs when the rotating chain is stopped suddenly by contact with a more solid area throwing the saw rapidly backward toward the operator.
Why is my chainsaw hard to pull and kicks back?
If your chainsaw is hard to pull, here are some common causes: The pully system is snagged or stuck. The starter assembly is stuck or sticky. The housing may be damaged.
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.
How does the chain brake work on a Stihl chainsaw?
The STIHL Quickstop® chain brake is designed to stop the rotation of the chain if activated by the operator’s hand or by inertia if the saw kicks back with sufficient force. In some working positions, the STIHL Quickstop® chain brake can be activated by inertia, stopping the chain within fractions of a second.
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.
When should a chain brake be used?
The chain brake has two purposes. First, it can be used to secure the chain when changing position, moving between cuts or starting a cold saw, which requires a partly open throttle. This would otherwise lead to uncontrolled chain movement, a major hazard in older saws.
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.
How do most chainsaw accidents happen?
CHAINSAW ACCIDENTS It occurs when the tip of the guide bar and chain contact an object, forcing the guide bar violently backward and upward. Kickbacks can occur in less than one-tenth of a second, causing severe head, face, neck, shoulder, and hand injuries.
Can you drill holes in chainsaw bar?
Re: Drilling a Chainsaw Bar Drilling that bar may not be as difficult as you think. It will be best if you use a drill press, start with a pilot hole, and then drill to the size you need. Make sure you have a sharp bit, run at the lowest speed you can, and use cutting fluid.
How common are chainsaw accidents?
They can also quickly cause severe injury or death. According to the Centers for Disease Control and Prevention (CDC), approximately 36,000 people are injured by chainsaws annually. Medical costs for chainsaw injuries based on these facts amount to about 350 million dollars per year.
Why does my chainsaw have too much compression?
Many problems with compression are related to fuel. Old or bad fuel can cause lots of headaches with yard equipment. Try draining any of the gasoline mixture left in the gas tank and add fresh fuel. If this does not solve the problem, it may be related to excessive fuel caused by problems in the gas lines and filters.
How long does it take to Unflood a chainsaw?
The first option is the easiest since it doesn’t require any effort on your part, it just takes time. Many people wonder if a flooded chainsaw will fix itself? The answer is yes, but not always. By letting the chainsaw sit for about 20 minutes it will allow some of the fuel inside the engine to evaporate.
Why is my pull cord hard?
The problem may be in the recoil starter itself. A tangled coil of rope or a broken spring may be the problem. In many cases the recoil starter is easily replaced as a single assembly. DO NOT attempt do take the starter apart.