A chainsaw can be a very useful tool for homeowners and professionals alike, until it stops working! However, there are simple solutions you can do yourself that might get your chainsaw running again at very little to no expense while giving you a few more years of use. Spark Plug Problems. Fuel problems. Chainsaw models will differ from one to another and while they often have different features and types from gas to electric, they all operate on a similar concept.
No matter what type of chainsaw you have, one thing that is common in all of them is that they are operated by an engine. They also all consist of a blade made up of sharpened steel alloy that is built within a chain hence the name, chainsaw. Inside the motor are gear wheels that turn the chain which allows it to run along the guide bar as you drive through tree limbs and lumber.
Top 4 Reasons Your Electric Chainsaw Won’t Start
A piston within the engine moves in and out of the cylinder and pushes on a connecting rod which results in the crankshaft turning gears that are connected causing the chain of the saw to spin along the guide bar.
It then burns, releasing its energy as it pushes the piston back and forth. Understanding how your chainsaw works can provide clues as to what the problem might be when it stops working. For beginners that have had little or no prior experience using one of these power tools, a lack of knowledge on how to start a chainsaw the right way could lead to serious problems.
The first thing you want to do is be sure to place the chainsaw on a flat surface such as the ground. The next thing you want to do is activate the chain brake, found on the top handle, by pushing forward on it.How to disassemble and find problem for Makita UC3503 chain saw repair
This keeps the chain from rotating on the bar as a safety measure. Some models feature a decompression control known as Smart Start in some models that aids in the startup of your chainsaw. Another added feature some models are equipped with is a fuel pump or a primer bulb. Press the button a few times until you can visibly see the fuel for easier startup with fewer pulls to start the machine. With the chainsaw still securely on a flat surface, place your right foot on the rear handle of the saw while holding the top handle firmly with your left hand.
Be sure the cutting attachment is not in contact with the ground before you begin pulling the starter.This well-illustrated, commonsense handbook quickly became the standard guide to selecting, using, and caring for those dangerous, but well-nigh indispensable, machines. All of our staff woodcutters who had copies of the book used them faithfully. Then, recently, Parp's Guide went out of print. Well, we saw a situation that needed correcting, so we decided to republish the book ourselves.
Not only that, we persuaded Walter Hall — the guide's author — to expand and update it. As you can see from the selections here, Parp's Guide is an important aid for anyone who ever has need to pick up a chain saw.
Check the chain saw troubleshooting illustrated guides in the image gallery. Occasionally, in one of your periodic examinations of your chain, you might spot a problem with some part, such as a cutter. When you do, use the picture guide here to identify the problem and thus discover its probable cause and remedy. But not all cutting problems are immediately apparent to the eye, especially if chain saws are new to you.
It's impossible here to cover completely all the potential saw chain problems, but if you experience a performance problem, try to identify it from the following chain saw troubleshooting paragraphs. Chain cuts crooked; cuts at an angle; engine drags: If your bar and sprocket are in good shape, these problems are caused by filing the cutters at different angles or by inconsistent filing pressure from tooth to tooth.
A chain that is sharper or longer on one side will pull to that side. Refile to restore uniform cutters, and reset the depth gauges. Check bar rails and tang clearance. Chain dulls quickly: The most common cause of this problem is thin or feathered cutting edges caused by holding the file handle too low or by pressing down too hard on the file. A misaligned, worn, or wrong-pitch sprocket will also cause the chain to wear or dull quickly. Check the sprocket for wear and to be sure it's the correct size.
Refile cutters using lighter strokes with the file held level or at a slighter angle, no more than 5 degrees from horizontal. Also check and lower the depth gauges, and check the chain tension often. Chain has been filed but won't cut; powders wood instead of chipping it: Blunt cutting edges are produced by holding the file too high on the face of the tooth or by holding the handle too high.
Refile with a clamp-on file guide. Chain binds; requires pressure to cut: Incorrect top-plate angle is caused by holding the file at an incorrect angle less than 35 degrees or height producing back slopeor by letting it drift during the filing stroke.
Depth gauges left too high will also cause this condition. Refile with a steady hand. Chain overheats; scrapes wood instead of cutting: If you're using sufficient oil, this problem is usually caused by a back slope of the cutters. This happens when you hold the handle of the file too low, while simultaneously filing too high on the tooth.
Have the chain reground professionally. Chain grabs and jerks; cuts rough: This is caused by a forward hook on the cutters produced by excessive downward filing pressure with the top of the file too high on the tooth.
Cutters dig too far into the wood, or take only thin slices: Both of these problems are caused by incorrectly set depth gauges. Check the depth gauge setting. Refile and reshape the depth gauges if they're too low, and file back the cutters.
Chain slops in guide bar; overheats; cuts crooked: The bar rails are probably spread too far, or the drive links are bottoming in the groove. If the rails are spread, pound them back into shape, using a bar-groove gauge, and try again. If the problem persists, or if the drive links are bottoming in the groove, the bar must be replaced or regrooved on a barrebuilding machine.
Parp says replace both the bar and sprocket, and regrind the chain. Whenever these or any other cutting problems occur, you should remove the bar and chain from the saw and clean them in solvent.
You can understand more and change your cookies preferences here. Choose the right one for you from our Best Buy chainsaws. We asked over Which? Members about the garden tools they have bought in the last 10 years. Around a quarter of members had bought a chainsaw in the same period. Likely cause Some chainsaws have a mechanism to prevent over tensioning. If you have followed the right procedure for adjusting the tension, the tensioning screw may be damaged.
How to avoid Tensioning the chain correctly can be tricky. You should have no visible slack, but the chain should move easily round the guide bar. You should be able to pull the chain slightly away from the bar.
Take time to get this right to avoid damaging the chainsaw. Likely cause Chain oil travels from the tank via a tube, then runs into the guide bar and the groove where the chain moves round the guide bar. If the chain does not oil, it may be clogged with wood shavings and dirt, or there may be a blockage in the line from the chain-oil tank to the bar.
How to avoid Make sure you clean the chainsaw thoroughly after each use. If this does not work, run the saw without the bar to see if the oil is being pumped out of the tank. Likely cause There are many reasons why a petrol chainsaw will not start, such as a mistuned choke, faulty spark plug, or a blocked fuel line.
Even if everything is working well, petrol chainsaws can still be hard to start. How to avoid Clean your chainsaw thoroughly after every use, removing all covers to reach every part. Drain your petrol tank regularly, clean the air filters and check your oil filters. Invest in regular servicing to keep it running well.
Chainsaw care and troubleshooting tips
Likely cause The chain brake stops the chain from turning by clamping a band around the drive mechanism that turns the chain. A spring provides the force to hold this in place and it is usually this that stops working. How to avoid It is vital that the chain brake works properly and adjusting and fixing this is a specialist job.
Have your chainsaw serviced regularly to fix potential problems before they develop. How to avoid If you accidentally hit metal or dirt with the blade then the teeth will dull very quickly. Chainsaws can be dangerous tools if not correctly set up, used, and maintained. Training courses in chainsaw maintenance and cross-cutting are widely available.
While expensive, they may save you not just money on servicing, but serious injury too. Coronavirus Read our latest advice. Maintain your chainsaw regularly to keep it cutting safely.An electric chainsaw, as the name implies, relies on electricity instead of gas to power its motor and allow the chain to rotate. Chainsaws are quite useful for trimming tree branches, lumberjacking and many home construction projects that involve wood.
Chainsaws can be very hazardous if they are used improperly, and severe injury can result. As a result, an electric chainsaw needs to be examined thoroughly in the event of any mechanical malfunction before it is used again. Troubleshooting an electric chainsaw requires some diligence. Charge the chainsaw if it is not turning on. If it has a battery, the battery may be faulty and require replacement.
If it won't start even when the saw is plugged into a power source, the battery is not the likely culprit. Replace the fuse in the chainsaw if it is still not starting and the battery appears healthy. Try a different extension cord of the saw is plugged into the wall.
Most common Chainsaw Engine Problems
Replace the chain if it is dull and not cutting properly. Soak a new chain for at least six hours in SAE Society of Automotive Engineers graded lubricating oil before installing it on the saw. Follow the saw's instructions for recommended tension, but the chain will likely stretch in its first 30 minutes of operation. Double-check the tension after some mild usage to ensure the new chain is properly adjusted.
Examine the sprocket when replacing a chain. A damaged spocket will quickly wear out a chain. Replace the sprocket if it looks warped or worn prior to placing a new chain on the saw. Ensure the chain and saw components are properly lubricated.
A dry saw may not run correctly and could be much louder than one that is oiled. A dry saw may also start smoking, which is a sure sign that oil is needed. Incorrect oil type can also damage saw components. SAE oil or bar and chain oil are typically used on electric chainsaws. Fill the chain oiler if your electric saw has one. It automatically keeps the chain lubricated during operation, but it needs to be checked frequently to ensure it has proper oil in it.
Have your saw professionally serviced if it is still not working properly. A technician should be able to restore its functionality safely. Michael Davidson started writing screenplays in and has had a screenplay professionally produced.
He has also studied martial arts since and has worked as a licensed security specialist. Davidson has written articles for various websites.Log in or Sign up. Screwfix Community Forum. Tags: chainsaw ttbchn. It was working fine, but just stopped. I have checked that the kickback brake is not on, plugged into a different socket, and changed the fuse.
All to no avail. Anyone any suggestions? I'm assuming that, if it's out of warranty, I will need to throw it away and get a replacement? Luke R TaylorSep 9, Does it have a thermal cut out. Got oil in tank. KIABSep 9, Have you flipped the safety guard back into position? Could be a break in the cable between plug and saw.
I'd check for continuity. Thank you all for your replies. I took the chain off and tried it again. It worked. Replaced the chain and it's still working. I think that, as I'm new to this chainsaw, I may have inadvertently tripped the kick back brake and got confused about which way was triggered and which way was not. So, all looks ok. Thanks again, Luke. Luke R TaylorSep 10, No offence Luke but you really shouldn't be operating a chainsaw if you don't know how it works.
One of the most dangerous power tools available.Having your own chain saw can be incredibly helpful when it's time to do more intensive lawn and yard work, but despite their use in a lot of rugged, messy jobs, chain saws are more sensitive machines than many owners realize.
It can be incredibly frustrating when it fails to start, especially if you've invested in a high-quality, top-of-the-line chain saw.
Thankfully, a chain saw failing to start is a common problem with generally simple solutions. There are a variety of ways to solve the issues that are causing your chain saw to fail and a few good practices you can follow to avoid having the problem in the future.
Nearly all of the mechanics and functions of a chain saw are built around the firing of its engine. If the engine isn't chugging along, the assembly of gears that pull the chain you use to cut won't work. So, if your gas chain saw isn't starting, it's likely that gas isn't feeding into the engine properly. Before you start troubleshooting, however, it's worth knowing just how the chain saw's engine works. A gas-powered chain saw's engine functions much like that of a car.
Simply put, the piston that drives the gears and chain is powered by energy released by combustion. Fuel in the tank is mixed with air when it's pulled into the carburetor where it's then ignited by a spark from the spark plug.
If your chain saw isn't getting gas, the trouble most likely lies in one of those three core components: the fuel tank, the spark plug or the carburetor, or one of the minor parts adjacent to the three.
The first place to check when troubleshooting issues with your chain saw's gas intake is the fuel tank itself. Beyond making sure that an adequate amount of gas is in the tank, consider the last time your chain saw was started. If it's been longer than a month and you didn't empty the fuel tank before storing it — especially if the chain saw has been sitting in a cold area — it's possible that the problem could be the result of fuel degradation.
The gas in a chain saw's fuel tank doesn't last forever. In as short as 30 days, the gas eventually separates into different components. This doesn't only hinder the engine's fuel combustion process but can clog the carburetor and run the risk of fouling the spark plug.
As a result, it's best to always use fresh fuel and empty out your chain saw's tank if you won't be using it again for more than three weeks. To clean out your chain saw's gas tank, empty it, swish some fresh gas around inside it do not attempt to use water and then scrub it with a wire brush and thin rag.
The spark plug may also be in need of cleaning, as a buildup of soot can interfere with its firing. It can simply be unscrewed and disconnected, then cleaned with a wire brush.
If, however, you can see signs of moisture on the plug, it's fouled and will need to be replaced. It's also worth cleaning — or if necessary, swapping out — the chain saw's oil and air filters as well if you haven't been doing so regularly.
If your chain saw still isn't turning on after examining and servicing the fuel tank, spark plug and filters, you'll likely want to examine the carburetor — the most complicated of the core components. This small device, which is hooked into the engine itself with a series of plastic tubing, can often be removed and inspected with basic tools.
The carburetor may also need to be cleaned out, especially if the fuel in the tank has degraded or if the chain saw has been left in dusty or dirty conditions. If a large amount of fluid gas is present, your engine may need draining accomplished by emptying the fuel tank, turning the chain saw upside down and letting it sit for 30 to 45 minutes before attempting to start it again.
Depending on the make of your chain saw's carburetor, this can either be easy or difficult to the point that you may find it easier to replace the carburetor in its entirety. If your chain saw is no longer under warranty and you need to purchase replacement parts yourself, swapping a carburetor is a simple task. However, if you need replacement parts and your chain saw's manufacturer no longer sells original equipment manufacturer OEM components, you'll want to be mindful in searching for parts to ensure their compatibility with your chain saw.
Instead of searching online for something like "Craftsman chain saw fuel cap" or "McCulloch carburetor," search for your specific model of chain saw and then the part EX: "Craftsman carburetor". Blake Flournoy is a writer, reporter, and researcher based out of Baltimore, MD. As a handyman's apprentice operating out of the Atlanta suburbs, they made a name for themselves repairing appliances and installing home decor.
They have never seen Seinfeld and are deathly scared of wasps. Hunker may earn compensation through affiliate links in this story. Blake Flournoy. Show Comments.I review models from quality brands, both corded-electric and battery-powered—and yes, brand matters. Overall, a great underrated chainsaw. Plenty of models to browse here…. Note : No chainsaw is product. No product is perfect. Chainsaws require some skill and also the ability to read the manual.
Every chainsaw is different, so make sure you read the manual thoroughly. Know your saw. Next stop on the tour — my top recommendations for battery-powered chainsaws worth spending your money on. That seems to be the expectation from readers, so I will included battery-powered models as well. Technically both types are being run from an electric power source — one being your V wall outlet and the other a lithium-ion battery.
Ideal for pruning. For many people, this will do just fine. A corded-electric is limited to 15 amps, which means it has a hard limitation in terms of speed and torque, whereas gas models can have increasingly bigger engines ccto drive the chain.
Battery chainsaws are the future as new powerful models rival gas sun as the new V Sun Joe, as seen below. The question is : Are you looking for a corded-electric or a battery powered chainsaws?
Limited power at 15 Amps max. You have to manage an extension cord. Chainsaws are lightweight no fuel, no battery. Clean power.
For light-duty cutting. No cords to deal with. More expensive due to cost of battery. Limited battery life get a 2nd battery. Convenient form of power. Battery power fades over time. New models rival gas. Corded-electric or battery? Do you mind having to wrestle with an electrical cord. If so, the choice is easy.
Oregon CS : Corded-Electric. No need to worry about sharpening your chain. Game changing chainsaw. Very affordable. Worx WG : 20V Battery. This is the perfect light-duty chainsaw for pruning around the yard. Easy to handle and hold. As a homeowner, you have to ask yourself a few questions before you decide on what you buy.