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disc change. Checking PCCB brake discs (wear assessment) Visual inspection of the surfaces of the brake disc friction surfaces Note The friction surface changes occur due to material fatigue as a result of extremely high thermal load. • Effects on driving: The surface change worsens the smoothness of braking, decreases the disc • The following illustrations (PCCB brake disc wear appearance) are to be used for damage assessment. PCCB brake discs without surface fractures 1. Friction area surface after normal brake load in road use. No surface fractures. No replacement Diagnostic system: reading out fault memory and activating systems Note on bedding in the new brake pads 1305 |