3.7.4. The plane of the socket of the block of cylinders with a head

On the plane of the socket of the block of cylinders with a head there can be deformations. Therefore check the socket plane by means of a ruler and a set of probes. The ruler is established on diagonals of the plane and in the middle in the longitudinal direction and across. If not planeness exceeds 0,1 mm, replace the block of cylinders.