Here are some signs that it's time to replace your chainsaw blade

Understanding chainsaw blade

Here are some signs that it's time to replace your chainsaw blade

Sign 3: Edges of blades are tilted at an angle

Another telltale sign of worn-out grooves on a chainsaw bar is when the blades of the chain are not pointing straight up instead they are tilted at an angle. This is also a sign that the grooves on the bars are either worn on one or both sides and the chain is tilting causing the blades to tilt along with it. If you want to confirm whether the chain is tilting or not you can find that out with this simple method:

Ruler: Grab a ruler or any straight item.

Flat surface: Place the chainsaw on a flat surface before you begin the test.

Side of the bar: Take the ruler or any straight item you have picked and placed it on the side of the bar.

Check the bar: Press the ruler against the bar and the side of the chain and notice whether there is a gap between the ruler and the surface of the bar or not

If you notice that there is a gap between the ruler and the bar when it is pressed against the side of the chain then it is an indicator that the groves on the bar are not worn and the chain isn’t tilting to the side and so isn’t the blade. But if the ruler lays flat against the side of the bar when pressed against the side of the chain then it is an indicator that there is too much space between the rails of the bar and the chain and blades are tilting to one side. You can perform this test at multiple locations on the bar and on both sides as well. If the chain is tilting at an angle the blades will be cutting at an angle as well which means irregular cuts or no cutting power at all if the blades are tilting too much. If that is the case your best bet is to simply replace the bar and buy a new one.

Sign 4: A jammed or damaged bar nose sprocket

 Nose sprocket is a gear located at the front of the chainsaw bar and it allows the chain to move in a fixed place between its teeth. The nose sprocket of the bar gets oil from the bar oil reservoir located near the motor of your chainsaw. If there isn’t proper lubrication being provided to the nose sprocket then it can get seized due to increased friction and it can cause the chain to break. Or another scenario might be that a person is cutting a tree and the weight of the tree caused the bar to pinch at the edge jamming the sprocket along with it. And finally, the nose sprocket might break a tooth or two which means the chainsaw will not be able to run at all. If your chainsaw bar has a replaceable nose sprocket you can easily swap it for a new one and get on with cutting but if you own a chainsaw without a replaceable nose sprocket you will have to get a new bar. The best way to avoid a jammed sprocket is to keep the oil reservoir filled and periodically grease the nose sprocket to prolong its life and prevent it from jamming.  

About chainsaw blade:

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