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Is it dangerous to use a chainsaw with a dull blade?

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Not to scare you, but most chainsaw accidents occur due in some part to a dull blade. if the blade is not sharp, it may be more prone to getting caught in the wood which can cause it to buck when it comes free. this is very dangerous, so keep the blade sharp- anyways it will make the cutting go smoother

Posted on Jan 28, 2013

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The 8 angle anvil pruner sku #836-7013 has a design flaw. It is not a saw; it is not a chainsaw; it has Is there a pruner like this with a better design?


I think this is one of those cutter blade type of trimmers , I do know you have to keep blades razor sharp to cut anything with them , as they do tend to go dull easy (by design) , id go with a pole pruner chain saw if your looking to replace it , but beware as pruner chain blades and chain saws are not interchangeable due to fact that pruner's are made to cut on both sides of bar , chainsaws only cut on down stroke hence have a much more aggressive chain rake , don't put a chain for this on a pruner saw you'll be putting your self at risk of injury

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How to sharpen a chainsaw by hand with a file


Having a sharp chainsaw is very important when you want to cut down a tree because using a dull chainsaw can be very dangerous and may even ruin the chain.

To start it is imperative that you make sure the chainsaw is disconnected from power and completely shut off. Place the chain side of the chain saw in a vice grip and make sure that the chain is free to move, that its not touching the grip on the top or bottom.

Check the diameter of the teeth on the chain to determine the size file that you will need to use. Placing the file in to the curve of the tooth, hold it at the same angle of the blade, usually a 30 degree angle. Using a little bit of pressure slide the file away from you, against the tooth. If you have a guide you should use it to make sure that the angle is right. Repeat this for every second tooth on the chain, advancing the chain so that the one you are working on is always on top.

When you have finished all the teeth in that direction (every other blade) open the vise grip and turn the saw around. Look at the clearance of the rakers, depth of the gauge of the teeth, they should be 1/10 of an inch lower than the cutter. If they are too tall you will need to file them down using a flat mill file. Using the same motion file down the rakers until they are 1/10 of an inch lower than the the cutter's hook.

You should wear gloves when working with a chainsaw because they are very sharp. If you don't know what you are doing maybe you should consider going to an expert before embarking on your own adventure.

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1 Answer

Sharpen chainsaw chain


I have four options when my chain saw blade gets dull. 1) replace it with a new one. 2) take it to a repair shop and pay half the price of a new blade. 3) Use my hand sharpening file kit from Lowe's, or 4) Use my electric chain saw blade sharpener form Harbor Freight. I recently purchased one for about $30 on sale. In one setting I earned the price of the sharpener by sharpening my old blades that were just hanging on a peg waiting to take to the repair shop. Really, the sharpener takes a small amount of skill, but the few minutes it takes to learn can save a lot of time and moo-lah.

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1 Answer

Chainsaw runs fine but the blade slows down to stop when i cut


too much load (too large a cut), dull chain, no lubrication oil on chain, slipping clutch.. lots of reasons.. need more information and you need to check all the points I mentioned. The clutch is RPM dependant- once the RPM drops- the clutch will start to slip. Look for oil or grease on clutch shoes also

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1 Answer

Ice hardened hole saws went dull cutting through 55 gal drum


Is the material you are cutting with-in the parameter of the saws, or blade's ability. You can always replace the blade, but check to be sure the blade you're using can handle the job. If not, can you find a case hardened tool that will get the job done for you. Hope this helps.

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1 Answer

Bar fails to oil and oil runs down the engine casing.


Sounds like bar is clogged, remove bar, with dull edge blade that fits clean bar groove, clean holes on sprocket side of bar. while ur at it carefully check bar for groove edge, if so file with flat file.

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2 Answers

The mower runs over the grass but leaves much of it uncut


You can look at two items.
One is your mower level. If you are up on one side it will cut uneven.
Check your blade it might be bend or dull and not cut good.

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1 Answer

I am looking for simple how to work it instructions


There are two levers that must be pressed to switch it on. Make sure that the sight glass in the oil bottle always has oil in it, Any thinner oil will do. The chain drive teeth should almost clear the guide when pulled out, that is the correct tension for the chain. (When this tension can no longer be maintained the chain must be replaced) Cut with the blade close to the guard and avoid using the tip to cut. Be very careful using the upper side of the blade to cut with, avoid it as best you can. Make sure that you are on sure footing when using the machine. Be careful not to pinch the blade and guide when cutting. Gauge the part being cut so that it falls away from you and the saw. Avoid cutting dry wood, especially hard wood. It dulls the blade very quickly. Avoid cutting dirty sandy wood, this causes wear. Keep hands, clothing and hair away from the moving blade. Unplug the saw when doing any work on it. Thoroughly clean the machine after use. remove the blade and clean out the recesses around the blade and the drive gear, blow or brush out these areas well.
That is about it, otherwise it is common sense safety precautions - remember, this is an extremely dangerous machine and is not at all forgiving for even the smallest lapse in concentration of care.

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1 Answer

Cutting 5" log with resaw


Check the teeth tips on the right side of the blade--they may have been dulled by running into something hard--a small rock, nail, or other debris embedded in the wood. Good luck!

Feb 10, 2011 | Garden

1 Answer

How do I adjust the blade height yo cut at it's best performance. I am having problems with the cutting and it feels like it's ripping the grass instead of cutting it. It is fairly new so the blades are...


The blades on you rotary lawn mower could well be dull. I does not take to long for them to become dull. Figure about 8 hours of cutting. They are quite easy to sharpen. The blades can sometimes be sharpened on the machine, but it is much easier to remove the blade. 1 pull the wire going to the spark plug off the spark plug (this is so it won't start with your hands in the way. then tip it to one side. but make sure you do not spill gas everywhere. Then remove the blade there is generally a bolt in the center holding it on - -this bolt of quite often reverse threaded- - your manual will have any specific information on removing the blade. then using a file, bench grinder, or a purpose built sharpener sharpen the blade. It generally is only beveled on one side. don't take off very much material from the blade and make sure it balances before you put it back. Make sure it is on correctly, and that the bolt is properly tightened. No way do you want that geting loose

Dec 09, 2010 | Garden

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