The slewing bearing is a large bearing with a special structure that can simultaneously bear large axial load, radial load and overturning moment and other comprehensive loads, and integrates multiple functions such as support, rotation, transmission and fixation. Therefore, when installing the slew plate bearing, we must do relevant inspections or matters that need to be paid attention to during installation. For such large bearings, we must do maintenance, storage, etc. to avoid the following damage to the slew plate bearing: resulting in inability to use it normally.