Basic Information

Checking involves the following: Information 

1. Visual inspection for surface changes in the brake disc friction surfaces and wear indicators. Indication of wear: Connected surface fracture > 1 cm²-arrow-  , without adding up smaller fractures → 465102 CHECKING FRONT PCCB BRAKE DISCS (WEAR ASSESSMENT)  - section on "Checking".
   Fig 1: Locating Brake Discs Surface Fracture

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2. Check surface roughness (Rk) of brake discs (max. 80 μm permitted) since this affects braking comfort (noises), braking behavior/pedal pressure and brake-pad service life → 465102 CHECKING FRONT PCCB BRAKE DISC (WEAR ASSESSMENT)  - section on "Checking".
   Fig 2: Identifying Surface Roughness Of PCCB Brake Disc

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3. Check brake discs for minimum thickness -X-  . The minimum brake disc thickness (e.g. Min. Th. 37.7 mm) is stamped on the brake-disc chamber → 465102 CHECKING FRONT PCCB BRAKE DISC (WEAR ASSESSMENT)  - section on "Checking".
   Fig 3: Identifying Minimum Thickness Of PCCB Brake Disc

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4. Check brake discs for edge damage -see pictureFig 4- (damage due to improper use) → 465102 CHECKING FRONT PCCB BRAKE DISC (WEAR ASSESSMENT)  - section on "Checking".
   Fig 4: Identifying PCCB Brake Disc Damage Edge

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