Käsikäivitussüsteeme
Käsikäivitussüsteeme, often translated as hand-crank starting systems, are mechanical devices used to start an engine without the aid of an electric starter motor. They consist of a crank handle that engages with a pinion gear, which in turn meshes with a starter ring gear attached to the engine's flywheel or crankshaft. Turning the crank handle rotates the engine's crankshaft, initiating the combustion cycle.
These systems were prevalent in early automobiles, motorcycles, and other internal combustion engine applications before the
The operation of a hand-crank system requires physical exertion. The user inserts the crank into a socket,
While largely obsolete in modern vehicles, hand-crank starting systems can still be found on some small engines,