Abstract
There is proposed a methodology of the shock-absorber technical condition estimation by the method of its pivot displacement study at ring-off and compression motions. There is elaborated a calculation scheme and there are established differential equations of the pivot's displacement character. There is also established the diagnosis parameter - the duration of pivot displacement at compressions and ring-offs.
Keywords: testing stand; inelastic resistance force; gravity force; pivot displacement speed; process duration; compression and ring-off motions.