Prepare Gearbox for Oil Fill

What happens here

The brush cutter is lowered onto the ground, and the operator dismounts. An adjustable wrench is used to loosen the fill plug on the gear oil reservoir of the brush cutter's gearbox. The plug is completely removed, allowing for the addition of new gear oil. The presenter comments on the poor quality of the adjustable wrench (Husky brand) he was using, and replaces it with a different one.

Goal: Open the gearbox fill port for new gear oil.