Selection of pistons and bearing shells — description
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The size group number is stamped on each part and corresponds to the specific size range of the new part. For used ones, this designation of the size group is not valid.
Repaired or used parts must be micromanaged. Comparing the tabular data with the measurement results, determine the size group of the part.
Information about standards, measurement methods in the selection of parts is given in the text of this manual.