1 | Brake disc |
Medidas | |
A | Brake disc thickness |
B | Wear limit |
C | Bevel |
Estado da superfície do disco do freio | |
A1 | Crack formation in the form of webs |
B1 | Cracks heading into the hub center |
C1 | Ripples on the surface of the disk |
D1 | Through cracks |
a | Surface of the ring |
b | Width and depth of the cracks |
B42.10-0430-05
| Check | ||
1 | Remove the wheels | ||
2 | Measure the thickness of the brake disc (A) | Front axleDisk width | |
Rear axleDisk width | |||
The thickness measurement of the brake disc (A) is less than the wear limit (B): | |||
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Replace the brake disc (1). | |||
Removing and installing brake discs of the front axle | |||
Removing and installing brake discs of the front axle | |||
3 | Check the wear of the brake disc (1) | As reference, when the wear reaches the chamfer (C) the brake discs need to be replaced. | |
Front axleDisc outer edge chamfer, after machined | |||
Rear axleDisc outer edge chamfer, after machined | |||
4 | Check if the brake disc (1) shows wear and cracks on the surface | The formation of cracks shaped webs (A1) and (B1) that go towards to the center (75%) of the ring surface and a maximum of 1.5 mm in width and depth are permissible. If the ripples on the brake disc surface (C1) are greater than 1.5 mm, align the brake disc.. | |
If the cracks on the brake disc surface (1) are continuous (D1) | |||
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Replace the brake discs: | |||
Remove/install front axle brake disk | |||
Remove and install the brake disc of the rear axle | |||
5 | Check the roughness of the friction surface of the brake disc(1) | Front axleRotor braking surface coarseness | |
Rear axleRotor braking surface coarseness |