The article concerns research of discomfort by the operators exploiting forklifts, as the effects of their working conditions, determined by the structure of forklifts and other elements of the work environment. The research was conducted using a checklist - survey and interview of employees. The whole was ended up by giving directions of ergonomic activities. Questionnaire research on subjective feelings forklift operators was conducted among all (seventeen) operators working in the selected company. The aim of the study was to diagnose the well-being operators, and above all, their musculoskeletal disorders, and dependencies between the quality of work to environment conditions. The first part of the survey concerned the body segments discomfort during use of forklifts, the second - the impact of working conditions for the implementation of the adopted work tasks. Both parts were to provide information for the design of actions within corrective ergonomics. Results of the research will be used to design corrective actions for existing workstations, as well as preventive action - through the development of ergonomic recommendations for the design phase of new construction forklift. Despite the use of very simple diagnostic tools that do not require the use of expensive test equipment, the results are useful for actions in the field of ergonomic engineering. This may be an indication for small and medium-sized enterprises, which should initiate studies and ergonomic corrections, and which do not have the necessary measuring equipment.