Work related to wind energy is tiring.
The most important thing is physical work. You often have to climb on the fan if you want to replace components in the cabin, you have to climb with them, although many units now are. Equipped with climbing aids, they are not suitable. For boys (a climbing aid with a load capacity of 80 pounds), they still have to climb hard on their own.
Specific maintenance tasks include tightening (tightening bolts). The fan is screwed together by many bolts and cleaning, and most of the time is cleaning, called high-altitude cleaner.