A yaw brake disc cleaner for a wind power generator, comprising: a yaw brake disc rotatably installed by a yaw bearing installed to rotate a nose of a wind turbine; A brake pad installed to stop the yaw brake disc; And a cleaner provided on a side surface of the brake pad to remove foreign matter on the surface of the yaw brake disc. The cleaner provided on the brake pad can remove foreign substances from the yaw brake disc, and a viscous material such as oil or grease The abrasion of the brake pads and the yaw brake discs can be reduced and wear due to the hardening of the yaw brake discs and the brake pads due to oil or grease can be reduced and the life of the equipment due to the abrasion of the brake discs and the brake pads can be prolonged The cost of maintaining and repairing the wind turbine can be reduced, and the noise can be reduced by maintaining the surface of the yaw brake disk in a clean state.
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