Fourth, when install the slewing bearing , in order to ensure the prestressing force of the bolt on the circumference of a circle having the same shall be installed symmetrically in 180 DHS direction continuous tighten bolts, and finally through it again.

Fifth, when install the slewing bearing , it’s prohibited to welding operation on the slewig bearing , in order to avoid the distortion , affect the normal function .

Sixth, finish install the slewing bearing ,clean it , the bare parts must paint , the gears and the ball race must coat grease .