Yaroslavl ???-236, Maintenance Manual

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Technical requirements for the repaired assembly unit
Number of the
defect
1 Cumulative tolerance of parallelity and flatness of the surface K relatively to the surface B -0.06 mm at the
length 100 mm and 0.1 mm relatively to the whole surface
2
2 At the surface K singe clean cavities are allowed with the most dimension 2 mm with
the distance between their edges less than 3 mm and no more than 5 pieces 2
3 Moment of force of the bolt tightening should be 49... 69 N*m (5...7 kfg m). Bolts should be
locked with the bending of the locking washer
6
4 Dimension J after the processing till the elimination of the defect should be no more than 79 mm
2