Based on current stress situations in the repair section of a big German truck and bus company procedures for force measuring have been developed, methods for risk assessment are selected and applied and proposals for improvement of the work performance are discussed. In addition to the technical component of the force measurement with a specially designed device and the organizational component in a project with representatives of various disciplines the specific differences between service and production are to be respected. Most of the approved assessment tools like COBRA, KIM (LMM) or EAWS for physical work situations with critical body and spine loads can just be applied with restrictions. By use of a special documentation systematic the results of risk analysis of selected activities are evaluated and solutions developed according to the TOP principle with respect to economical, technical and organisational feasibility. Effort and practical acceptance of the project are mainly determined by the multidisciplinary staffed working group.