Is there a clutch on a chainsaw?
The chainsaw clutch is made of two main parts that are separate when the engine idles slowly: The drive shaft, shoes, and spring. The drum, sprocket, and chain.
Where is the clutch on a chainsaw?
0:078:12How to Replace the Clutch on a Chainsaw - YouTubeYouTubeStart of suggested clipEnd of suggested clipThere's two types of sprockets used on chain saws spur sprockets and rim sprockets and we'll showMoreThere's two types of sprockets used on chain saws spur sprockets and rim sprockets and we'll show you how to replace both types starting with the spur sprocket.
Can you run a chainsaw without a clutch?
A clutch is an absolute necessity on a chainsaw. Without one, the chain sprocket would be connected directly to the motor, and the chain would turn even when the engine is idling.
Does a Stihl chainsaw have a clutch?
The Stihl MS 250, like all chain saws, has a centrifugal clutch, which has two parts. The shoes are attached to the engine crankshaft, and the drum is part of the chain sprocket.
How do I know if my chainsaw clutch is bad?
How do I know if the clutch on my chain saw is bad? If the chain continues to turn or if the chain slips under load you should stop using the equipment immediately and have it evaluated by a local authorized service center.
Can you repair a chainsaw clutch?
Although they make specialized tools for the project, you can easily repair your broken clutch or sprocket by just using a couple of common, everyday tools found in most homes. The centrifugal clutch on a chainsaw is basically a switch that allows your chainsaw to run at an idle speed without the chain spinning.
How does a chainsaw clutch work?
Chainsaws use a centrifugal clutch, which automatically engages when the engine spins at high speed (when the saw is actually chopping wood) and disengages when it's running more slowly (idling, in other words). A centrifugal clutch is really simple and consists of just a few parts.
Do all chainsaws have a brake?
All chainsaws must have chain brakes that comply with ISO 6535:2008 Portable chain-saws — Chain brake performance.
Do you start a chainsaw with the brake on?
When using a chainsaw, you should always start it with the chain brake engaged so the chain does not move.
Where is the clutch on a Stihl chainsaw?
0:429:02STIHL MS170 MS180 Chainsaw Clutch Removal & InstallationYouTubeStart of suggested clipEnd of suggested clipYou'll need to remove the washer. Now make sure the chain. Break is off on your chainsaw. Now justMoreYou'll need to remove the washer. Now make sure the chain. Break is off on your chainsaw. Now just pull the sprocket. Out also the small bearing right here. And here your clutch is exposed.
Should you oil the chainsaw clutch?
Although the clutch shoes of a Stihl chainsaw should never be greased, the needle bearing that fits inside the chain sprocket, which is part of the clutch mechanism, may need occasional lubrication.
Should I grease chainsaw clutch bearing?
1:254:46Secret Hidden Greasing Spot On A ChainSaw! - Video - YouTubeYouTubeStart of suggested clipEnd of suggested clipYour bearing is normally installed right here as you can see here the bearing would get all theMoreYour bearing is normally installed right here as you can see here the bearing would get all the grease I'll do it once more just to simulate what it's like when the bearings. On. You can see that the
How do you tighten a clutch on a chainsaw?
0:091:06How to Tighten the Chain on a Chainsaw | Husqvarna - YouTubeYouTubeStart of suggested clipEnd of suggested clipCover we'll start with loosening the guide bar nuts on the side of the clutch cutter. Once those areMoreCover we'll start with loosening the guide bar nuts on the side of the clutch cutter. Once those are loose thread them just gently back on by hand. And then in combination lifting the guide bar.
How do you remove a clutch from a Stihl chainsaw?
1:307:57STIHL MS170 180 Chainsaw Clutch Removal & Installation - YouTubeYouTubeStart of suggested clipEnd of suggested clipAnd now the Rope should lock. In. Came off pretty easy.MoreAnd now the Rope should lock. In. Came off pretty easy.
How do you remove a clutch without tools?
0:000:50Removing a fan clutch in seconds! Without special tools. - YouTubeYouTubeStart of suggested clipEnd of suggested clipYou put the wrench on. There. This is your dead blower your whatever this hammer and you just smackMoreYou put the wrench on. There. This is your dead blower your whatever this hammer and you just smack it on the top as you pull. There you go it's loose ready to come off.
Why is my chainsaw clutch smoking?
This most commonly is a result of a dull chain and exerting to much pressure on the bar and chain trying to make the chain saw cut. This could also be either a lack of bar and chain oil ( tank empty, restricted oiler hole ) or an inferior type of oil that is being slung off the chain and not lubricating.
What happens when an engine spins slowly?
If the engine spins slowly? The engine shaft holds the weights away from the drum. At this point, the engine, the shaft, shoes and spring turn while the chain, the sprocket and drum do not turn.
What is the purpose of a clutch?
The main purpose of the clutch is to disengage and prevent the chain from moving when the engine is idle. It can also engage to make the chain move and cut what you want. In other words, the clutch moves at a low RPM (revolution (turns) per minute without necessarily moving the chain.
Why is a chainsaw clutch important?
That’s how simple I can explain the clutch. Its main purpose is to disengage to prevent movement or engage to aid movement. The chainsaw has several advantages. It can not only make your life easier, but make you efficient when working. In fact, one of the benefits of owning a chainsaw is safety. A good battery chainsaw will reduce the occurrence of a kickback. If you have more questions about chainsaw, you can read our articles to find the answers.
What is the outer drum?
The Outer Drum. This part includes the sprocket which engages the chain. The purpose of the outer drum is to turn freely. In other words, when it turns, the chain turns
What is a chainsaw?
The clue is in the name! A chainsaw has two main parts: a saw blade built into a chain, wrapped around a long metal guide bar, and a small, one-cylinder gasoline (petrol) engine (sometimes an electric motor powered by a cord or battery pack). The chain is a bit like a bicycle chain, running around sprockets ( gear wheels designed to turn a chain) only with about 30 or so sharp teeth (made from a hardened steel alloy) mounted around it at intervals. Inside the engine, as the piston moves in and out of the cylinder, it pushes a connecting rod that turns a crankshaft. The crankshaft turns gears that are connected (through a centrifugal clutch, explained below) to one of the sprockets on which the chain is mounted—and the chain spins around.
What happens inside a chainsaw?
Yes, crudely speaking, that's what a chainsaw does: in scientific terms, it converts the chemical energy locked in gasoline into mechanical energy you can use to "do work," turning a tree into logs, sawdust, noise, and heat. Here's a very simplified explanation:
How do hedgecutters work?
At a glance, electric hedgecutters look quite similar to chainsaws, but they work in a totally different way.
What is a chainsaw clutch?
Chainsaws use a centrifugal clutch, which automatically engages when the engine spins at high speed (when the saw is actually chopping wood) and disengages when it's running more slowly (idling, in other words). A centrifugal clutch is really simple and consists of just a few parts.
How much gas does a chainsaw use?
To keep it nice and light, a typical chainsaw tank holds just 0.5 liters (1.1 US liquid pints) of gas (a car's gas tank holds maybe 45–55 liters or 12–15 US liquid gallons, which is roughly 100 times more).
What is a clutch?
A clutch is a device that makes and releases a mechanical connection between an engine and the machine it's driving: it's a kind of "switch" that allows an engine to run all the time (which is quicker and easier than switching it on and off) without always driving the machine it's connected to.
How does fuel work in a car?
The fuel feeds through a carburetor to mix it with air. The air-fuel mixture passes into a cylinder, which works much like the ones in a car engine but with only a simple push-pull (two-stroke) action instead of the more complex (four-stroke) cycle used in a car.
Why do the drum and weights become a single spinning unit?
The drum, weights and center shaft become a single spinning unit because of the friction between the weights and the drum. Once the drum starts turning, so does the chain. There are several advantages to a centrifugal clutch: It is automatic. (In a car with a manual transmission, you need a clutch pedal. A centrifugal clutch doesn't.)
What is the purpose of a centrifugal clutch?
The centrifugal clutch is the link between the engine and the chain. The clutch's purpose is to disengage when the engine is idling so that the chain does not move. When the engine speeds up (because the operator has pulled the throttle trigger to begin cutting), the clutch engages so that the chain can cut.
Why do the weights and the center shaft spin?
If the engine spins fast enough, however, the centrifugal force on the weights overcomes the force being applied by the spring, and the weights are slung outward. They come in contact with the inside of the drum and the drum starts to spin. The drum, weights and center shaft become a single spinning unit because of the friction between the weights and the drum. Once the drum starts turning, so does the chain.
What is the clutch on a car?
The clutch consists of three parts: An outer drum that turns freely - This drum includes a sprocket that engages the chain. When the drum turns, the chain turns. A center shaft attached directly to the engine's crankshaft - If the engine is turning, so is the shaft.
Do you need a clutch pedal for a manual transmission?
It is automatic. (In a car with a manual transmission, you need a clutch pedal. A centrifugal clutch doesn't.)
Does a car have slip in the clutch?
Once the engine is spinning fast enough, there is no slip in the clutch.
Why do chainsaws require throttle interlock?
All chainsaws require both the throttle and throttle interlock to be pressed in order to run. This safety feature is meant to prevent accidents and misuse.
What is an anti vibration handle?
1. Anti-Vibration Handle (OSHA) All chainsaws have an anti-vibration handle system. An anti-vibration handle is designed to reduce the strain on the operator’s arms and hands. As you can see in the photo above, a spring is being used to absorb the motion caused by the chainsaw’s gas engine.
Why do you drive spikes into wood?
When you drive the bucking spikes into a piece of wood, it stabilizes the chainsaw and gives you leverage, which makes it much easier to make your cuts. This lets the chainsaw do the work, rather than straining your body.
What is the chain brake?
The chain brake is a very important safety feature that can stop the chain in emergency situations such as chainsaw kickback. 4-5. Clutch/Sprocket.
How many parts are in a chainsaw?
Below we’ve highlighted 26 chainsaw parts. This includes the OSHA required components that you’ll find in all chainsaws (which we’ve marked with “OSHA” in the relevant headers below).
What is the purpose of a spark arrestor?
The function of the spark arrestor is to prevent any small projectiles (like metal pieces), from flying out of the chainsaw. This can prevent injury, and depending on the situation, it could also prevent fire hazards. 8. Chain Catcher (OSHA) The chain catcher is a critical (and OSHA required) safety feature.
How many components are in a chainsaw chain?
Chainsaw chains are made up of 5 primary components, including cutters and guides. If you’d like to learn about chain parts, types, and sizes, check out our detailed guide on chainsaw chains.
How to clean a chain brake?
Clean the chain brake and check that it operates safely. Make sure that the chain catcher is undamaged, and replace it if necessary with an aluminium chain catcher (is available as spare part). Check that the vibration damping elements are not damaged. Clean the spark plug.
Why is my chainsaw chain crooked?
Conditions that could cause a chainsaw chain to cut crooked are: 1. Dull cutters damaged by rocks or other hard objects. It's important to remove all nearby objects before using a chainsaw. 2. Different depth gauge settings from left to right. Keep all depth gauge settings equal from left to right. 3.
What happens if you store gasoline in a tank?
Over a short period of time, fuel will become stale. If the unit is stored with stale gasoline, the system will become clogged or restricted. Fuel related failures are not warranty.
How to keep a bar from clogging?
The bar should be turned daily for more even wear. Check the lubrication hole in the bar, to be sure it is not clogged. Clean the bar groove. If the bar has a sprocket tip, this should be lubricated.
What causes a chain to cut to one side?
4. A worn guide bar. A badly worn guide bar will definitely cause a chain to cut to one side.
Does McCulloch use chain oil?
Chainsaws from McCulloch are self-lubricating. Use only Universal powered by McCulloch bar and chain oil. This oil has been specially developed to retain its viscosity at the extreme temperatures generated by the chain and bar. If the bar is fitted with a nose roller, this should also be lubricated regularly.
