An Application of the Systematic Diagram in the Failure and Causes Analysis of a Vane Pump

Abstract. Hydraulic systems are widely spread among drive and control systems. They can play a crucial role in many applications; therefore, identifying potential failures and their causes might be required. Quality improvement tools and methods can be used to achieve this goal. This research attempts to apply one of the recently developed tools, which is a systematic diagram, to recognize possible failures and their causes and finally to define preventive measures for a typical hydraulic vane pump. The analysis of potential pump failures and their causes identified oil contamination as the primary source of pump failure or malfunction. Consequently, proper maintenance was found to be the proper preventive measure.