SL2016-620/AAB Installation of Piston Cleaning Rings during cylinder overhaul

Important routines that should be observed when overhauling a unit equipped with a PC ring are highlighted in the following.
A) In principle the PC ring remains (unchanged) together with the liner for the entire lifetime until replacement of the liner or PC ring due to wear of one of these above the standard wear acceptance criteria.

B) Until this occurs it is important and MANDATORY that the original PC ring is reused if the piston rings need to be exchanged but not the liner. Furthermore, the PC ring needs to be CLEARLY marked before removing it in such a way that it can be installed in its exact original position prior to the replacement of the piston rings.