Inspect condition of brake disks - AP42.10-P-4258R
MODEL 230.454 /456 /458 /467 /470 /471 /472 /474 /475 /476 /477 /479
| Remove/install | |||
|---|---|---|---|
| Risk of death caused by vehicle slipping or toppling off of the lifting platform. | Align vehicle between columns of vehicle lift and position four support plates at vehicle lift support points specified by vehicle manufacturer. | - | |
| Risk of injury to skin and eyes caused by handling hot or glowing objects. | Wear safety gloves, protective clothing and safety glasses, if necessary. | - | |
| 1 | Remove wheel-and-tire assembly | AP40.10-P-4050Z | |
| 2 | Remove brake pads on rear axle Remove/check/install rear axle brake pads. | Model 230.470/ 472/ 474/ 476/ 477/ 479 | AR42.10-P-1700RA |
| 3 | Check brake disks (61) for score marks and hairline cracks | Hairline cracks can occur due to high stress. Ventilated, brake disks (61) with perforations and without perforations do not have to be replaced if the hairline crack length (1) is a maximum of 25 mm. On perforated brake disks (61), the hairline crack length (1) including the hole diameter must be measured. With gaping hairline cracks and scores deeper than 0.5 mm: ↓ |
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| Replace brake disks. | AR42.10-P-0220R | ||
| 4 | Measure thickness of brake discs on front and rear axles using caliper gauge (035) | Observe wear limits of brake disks (61) so that these are not dropped below up to the next maintenance service, if necessary: ↓ | |
| Replace brake disks | AR42.10-P-0220R | ||
| Test values for brake disks | AP42.10-P-4251-01R | ||
| Fig 3 | |||
| 5 | Install in the reverse order |