Yaroslavl Engine Plant YMZ-536, Руководство по эксплуатации

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Fig. 12 Crankshaft
1
– front collar;
2
– main bearing upper shell;
3
– crankshaft;
4
– crankshaft gear;
5
– rear collar;
6
– thrust bearing washer;
7
– main bearing lower shell
The counterweight for the last crankshaft web has the
following visible marks stamped automatically during the
manufacturing process (left to right): three pairs of figures – day,
month, year (DD, MM, YY); three figures – serial number; two
figures – symbols for the sizes of the main and connecting rod
journals; the next area has an identification discerned by the scanner.
The diameters of the connecting rod journals and main journals
(basic and repair dimensions), their symbols, as well as the
corresponding symbols for the thrust bearing shells and washers are
shown in Table 1.