A razor-sharp chain is crucial to optimise the performance of your Husqvarna chain saw. This will ensure the saw cuts through the wood safely and quickly. When a chain is razor-sharp, you will make large chips from the wood you cut. If you see fine dust spitting out from your cuts, then it is time to sharpen the chain. Hand sharpening the chain with a circular file works best if you don’t want to hire a professional.
- Skill level:
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Things you need
- Dull chainsaw chains
- Proper-sized round rile
- Leather gloves
- Flat file
Turn off the saw and release the chain brake. The chain brake is the plastic handle located on the topside of the saw’s body between the bar and the throttle. With a gloved hand, spin the chain to ensure the chain brake is off. Leave the chain on the saw.
Place the saw on a workbench or other comfortable, flat space with good lighting. Make sure you have the properly sized round file. Common Husqvarna chains use round files with sizes 4.00 millimetres, 4.8 millimetres and 5.5 millimetres, but you will need the precise size or you will ruin the chain instead of sharpening it.
Wearing leather gloves, hold the chain in place with one hand. With the other hand, set the file at a 30-degree angle to a tooth on the chain. Push the file straight along the 30-degree angle across the edge of the tooth. Hold the file parallel to the bench or ground. Grind out any nicks or burs and count the number of strokes you used, so that each tooth can be ground evenly.
Slide the chain up two teeth so the next one matches the first tooth’s angle. Repeat the sharpening process at the same 30-degree angle and use the same number of strokes as the first tooth. Husqverna chainsaw chain’s teeth alternate side angles, so it’s fastest and easiest to sharpen one side of the chain first.
When you have finished one side of the chain, flip the chainsaw around and repeat. Use the same 30-degree angle sharpening with the same number of strokes as the other side.
Locate the depth gauge on your chainsaw chain. The depth gauge is the small metal post just in front of every tooth.
Use the flat file to file the depth gauge. Run the flat file, even to the ground and perpendicular to the bar, across the metal post.
File the depth gauge so it’s about 0.6 millimetres below the tooth’s sharp cutting angle.
Tips and warnings
- About every five times you sharpen the chain, you should also file down the depth gauge to match the teeth’s height.
- It is best to use a depth gauge guide to ensure proper distance between the tooth and the depth gauge.
- Grinding the depth gauge down too low can make the chainsaw pull in one direction while cutting, stall the saw and be dangerous to work with.
- Always wear gloves when sharpening a chainsaw chain.
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