Chainsaw Maintenance (Refuel & Tension)

What happens here

The presenter performs routine maintenance on the Stihl MS 661 chainsaw. He loosens the bar nuts with a scrench, lifts the bar to relieve tension, and then tightens the chain until there is no slack on the bottom of the bar, but it can still be pulled freely by hand. He then refuels the chainsaw, first adding bar oil to the oil reservoir using the Husqvarna 2-in-1 fuel can, which has an automatic shut-off feature to prevent overfilling. Next, he adds the 50:1 gas-oil mix to the fuel tank, also using the auto shut-off feature. Finally, he replaces the caps and secures the chainsaw tool (scrench) back into the fuel can's integrated toolbox.

Goal: Perform essential chainsaw maintenance to ensure optimal performance and safety.