The generator has two funnels on top of it. 기름칠을 하려면 이 깔때기 각각에 하몬드 오일을 한 번씩 채운 다음 배수합니다. The oil runs into a resevoir and from there to a bunch of little cotton threads which convey it, via capillary action, to the many bearings inside the generator.