Over time, chainsaw chains will wear out and require replacement. Knowing how to replace a chainsaw chain is a valuable skill for chainsaw owners. Follow these step-by-step instructions for a successful chain replacement process:
Safety First: Before replacing the chain, ensure the chainsaw is powered off and the spark plug is disconnected. Wear protective gloves and eyewear to protect yourself during the replacement process.
Loosen the Chain Tension: Use a combination wrench or a chainsaw-specific tool to loosen the chain tension by turning the tensioning screw. This provides slack in the chain, making it easier to remove.
Remove the Bar Nuts: Using a wrench, loosen and remove the bar nuts that secure the guide bar in place. Set the nuts aside in a safe place.
Remove the Guide Bar and Old Chain: Carefully lift the guide bar and slide it away from the chainsaw body, disengaging it from the drive sprocket. Take off the old chain from the guide bar, making sure to note the orientation of the cutting teeth.
Clean the Guide Bar: Take this opportunity to clean the guide bar thoroughly, removing any sawdust, debris, or residue that may have accumulated.
Install the New Chain on the Guide Bar: Place the new chain onto the guide bar, ensuring that the cutting teeth face in the correct direction. Make sure the drive links engage with the sprocket on the chainsaw body.
Reinstall the Guide Bar: Carefully reposition the guide bar back into the chainsaw body, ensuring that the adjustment pin aligns with the hole in the bar. Slide the guide bar until it seats against the chainsaw body.
Tighten the Bar Nuts: Gradually tighten the bar nuts with a wrench, ensuring the guide bar remains aligned and straight. Avoid over-tightening, as it can cause excessive tension on the chain.
Adjust Chain Tension: Use the tensioning screw to adjust the chain tension. The chain should be snug against the guide bar, but still allow for easy movement by hand.
Check Chain Tension: With the chain tension adjusted, manually rotate the chain around the guide bar to ensure it moves smoothly without binding. Double-check the tension and make any necessary adjustments.
By following these steps, chainsaw owners can successfully replace the chainsaw chain, ensuring proper operation and optimal cutting performance.