Check the condition of the threaded holes for the bolts of the wheel disks, the fit of the mud deflector ring. Turn the hub in both directions, while rolling should be smooth. Damaged or worn bearings are replaced using tool A.74186 for their extrusion and 67.7853.9574 for pressing (060 mm).
The hub is pressed with a mandrel 67.7853.9584 (058 mm).