Before diving into the assembly process, it’s crucial to understand why learning this skill matters. Chainsaw chains can loosen or wear over time, and knowing how to properly reattach or replace the chain is vital for optimal performance and safety. Whether you're a homeowner tackling tree maintenance or a professional handling heavy-duty tasks, mastering this skill will help prolong the life of your equipment and keep you safe during use.

1. Turn off the Chain Brake – Move the chain brake lever to the "off" position (away from the handle). If left in the "on" position, the brake will be tight around the flywheel and can't be removed.

2. Remove Bolts and Nuts – Loosen the two bolts on the chain brake and bar cover, remove the nuts, and set them aside in a safe place.

3. Detach the Cover – Pull the cover out and away from the chainsaw body.

1. Gather Required Parts – From the toolkit, locate the bump spike, two Allen bolts, and an Allen key.

2. Position the Bump Spike – Place the bump spike onto the chainsaw’s casing. Ensure the long sweeping curve of the spike faces upward.

3. Secure with Bolts – Start threading both Allen bolts into the tapped holes, then tighten fully to secure the spike in place.

1. Prepare the Chain – Ensure the chain's direction matches the chainsaw guide. Check the link direction using the symbol on the blade and wear gloves to avoid injury.

2. Place Chain on the Bar – Position the chain on the bar, making sure it aligns with the groove.

3. Position Bar and Chain on Chainsaw – Slide the bar onto the two bolts and tuck it beneath the clutch assembly.

4. Align the Chain on Drive Wheel – Carefully feed the chain around the drive wheel under the clutch assembly, then ensure it sits in the groove along the full length of the bar.

1. Check Chain Brake Position – Confirm the chain brake is still in the "off" position.

2. Align the Adjuster Pin – Ensure the adjuster pin on the cover aligns with the slot on the bar. If necessary, adjust the pin by turning the adjustment screw.

3. Secure the Cover – Fit the cover over the two bolts, then loosely reattach the nuts. Ensure the bar remains loose to allow for chain adjustment.

1. Position Chainsaw on Support – Place the chain bar on a piece of wood to keep it steady and elevated, aligning the chain bar upwards.

2. Check Chain Alignment – Verify that the chain is seated in the groove all along the bar.

3. Turn the Adjustment Screw – Tighten the adjustment screw, which moves the chain up into the groove. Adjust until there’s minimal slack, allowing you to pull the chain slightly out of the groove without excessive looseness.

4. Tighten Nuts – Once the chain tension is set, fully tighten the nuts to secure the bar.

1. Add Chain Lubricating Oil – Locate the filler cap near the chain end of the chainsaw. Remove the cap, fill the reservoir with specialized chain oil, and replace the cap securely.

2. Mix Fuel – Prepare a 40:1 fuel mix by combining unleaded petrol with semi-synthetic two-stroke oil. Use the provided measuring bottle to ensure accuracy.

   • Fill petrol to the "gas" line.

   • Top up with oil to the "oil" line, then shake the bottle to mix.

3. Add Fuel to Chainsaw – Unscrew the filler cap at the handle end, fill with the prepared fuel mix, and securely tighten the cap.

1. Throttle and Safety – The throttle is positioned under a safety lever. Depress this lever to operate the throttle. Always keep the chain brake "on" unless ready to cut.

2. On/Off Switch – Set to the "on" position to start the chainsaw; switch it off to stop the engine.

3. Choke Lever and Primer Bulb – Use the choke lever and primer bulb to prime the engine when starting cold.