Operation Manual / 2 Safety / A130 - A1551 Safety Page 9 / 19© Copyright 2017 ABB. All rights reserved. HZTL4022_EN Revision D January 2017Explanations regarding the rating plateThe recommended inspection and replacement intervals and the corresponding operatinglimits are jointly defined with the enginebuilder. This information is specific to the system.Operation above the indicated values n Bmax , tBmax can considerably shorten the recommendedreplacement intervals. In such a case, we recommend that you contact the nearest officialservice station of ABB Turbo Systems.n Mmax , t Mmax normally apply only when running at overload (110 %) during trials on the enginetest bed. These limit values can also be permitted during operation for special applications.Operation above n Mmax and t Mmax is not permitted.Non-observance of the recommended inspection and replacement intervals increases the riskof unpredictable component failures.Locations of the rating platesThe locations of the rating plates are defined in the Operation Manual, Chapter 4 Product de-scription.1.9 Periodic check of the pressure vesselsThe pressure vessels used by ABB Turbocharging, such as those for wet or dry cleaning, areso-called "simple pressure vessels". The locally applicable legal regulations regarding periodic checks of the pressure vesselsmust be observed. The operating company is responsible for the safe operation of the pressure vessel.WARNINGDanger due to pressure vesselsThe operating company must make sure the pressure vessels are in properworking condition and monitor them. Necessary repair or maintenance workmust be performed promptly, and the required safety measures must be tak-en. Pressure equipment must not be operated if defects are present.