Mastering Chainsaw Chain Filing for Better Performance
To get the best performance out of your chainsaw, keeping the chain sharp is crucial. The chainsaw and guide bar should be fixed in a position that ensures stability, freeing both hands for filing. The easiest way is to use a vice on a workbench to secure the guide bar. Make sure the chain is properly tensioned—preferably tighter than while cutting—so that it doesn't move around. For extra stability, always activate the chain brake.
Filing the Chain with a Filing Gauge
The cutting teeth on your chain must be filed according to specific angles, which vary depending on the type of chain.
- Place the Filing Gauge：Position the Yardmaris filing gauge on the chain so the arrows point in the chain’s direction of rotation (towards the nose wheel). Ensure the gauge is in full contact with the chain.
- File with Both Hands：Place the round file at a 90-degree angle relative to the rollers on the gauge. The file should rest securely on both rollers, which naturally sets the correct filing angle (typically 25–35 degrees depending on your Yardmaris chain type). File the cutting tooth away from you using smooth, even strokes.
- Switch Sides：Once you have finished filing all the cutting teeth on one side, loosen the vice, remove the chainsaw, and attach the guide bar from the opposite direction.
- File the Opposite Direction：Proceed to sharpen the remaining cutting teeth in the exact same manner from the opposite side.
Freehand Filing
If you are an experienced logger, you can file your Yardmaris chain freehand. However, you must carefully maintain the original angles of the cutting teeth. To preserve the correct angle and depth, we highly recommend periodically using the filing gauge, even if you are comfortable filing freehand. Avoid filing too high (which blunts the chain) or too deep (which creates a aggressive "hook," increasing strain and vibration).
Replacing the Chainsaw Chain
It’s time to replace your Yardmaris chain when the longest portion of the cutting tooth has been worn down to less than 4 mm, or if you spot any visible cracks in the metal.
Filing the Depth Gauge
The height difference between the depth gauge and the tip of the tooth dictates how much wood the tooth will cut. We recommend filing the depth gauges every 3 to 4 times you file the cutting teeth under normal wear
Sharpening the Chain in the Forest
If your saw becomes dull in the field, make sure you find a solid, stable place to secure it before filing. Here are a few methods:
1.Filing Vice Method：Drive a portable stump vice into a log or stump securely, then clamp your Yardmaris guide bar in just like a regular vice.
2.The Log Straddle Method：Sit astride a sturdy log. Hold the body of the Yardmaris chainsaw firmly between your thighs. Lean over, support your forearms on your legs, and file securely with both hands.
How Often Should the Chain Be Sharpened?
Even if you only cut clean wood, a chain will eventually lose its edge. If you use your chainsaw extensively, make it a habit to check the chain’s sharpness every time you refuel. If you ever feel you have to "lean in" and apply extra pressure to make the saw cut, it is a clear sign that your chain is blunt and needs immediate filing.