DIN 31051 defines inspection as "measures for determining and assessing the current condition of the object being considered, including determining the causes of wear and deriving the necessary steps for future use".
The inspection procedure encompasses the creation of "a plan for determining the current condition" and the implementation of this plan. Furthermore, the results of the determination of the current condition are assessed and a fault analysis created. A decision is made about further measures on the basis of this assessment. This includes maintenance, improvements or further measures.
The scope of spindle inspection includes the adoption of measurement data such as spindle run-time, spindle and bearing temperature or spindle noise, and their analysis with regard to a need for repair or improvements.