The results of our analysis of the modified data of six crane manufacturers indicate that through the average
percentage index of needs fulfilled the placement of indicators and regulators (index 0.4) poses the biggest problem, followed by display content visibility (0.5), the problems of work posture and understandability of signalization which are of equal importance (index 0.533), understandability of symbols (index 0.542), as well as the problem of load visibility (index 0.6).