(2007) Krauze, Krzysztof Bolesław; Kotwica, Krzysztof
The paper presents new simplified method of diagnosis of technical condition of heavy hydraulic impact hummers that are used in open pits. This method, on the contrary to the most commonly applied methods of calculating impact energy, does not require special research bays (positions), is cheap and possible to apply directly in the place of work of hammer.