Yaroslavl ???-236 Maintenance Manual page 103

Table 8 – Categorical repair dimensions of the crankshaft
Number of the defect
3 Diameter of crankshaft bearings
Technical requirements for the repaired assembly unit
1 Circular runout tolerance of the middle bearings relatively to the total axis of the end bearings afterthe
correction – 0.04 mm
2 Tolerance of circularity and longitudinal section profile of the surfaces Г and Д – 0.005 mm
3 Roughness of the surfaces Г and Д should not exceed Ra 0.5 micron according to the GOST 2789-73
4 During the cam processing according to the template on the crankshaft bearing between the cams of the first
cylinder a mark "P" with height 5 mm should be made with the stress method
Name of the dimension Category of the repair dimension, mm
1 2
Number of the
defect
6
3
3
4