Technical Data Wear Limit - BOXSTER S
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Depending on the wear of cast iron brake discs, two condition criteria can make replacement necessary:
- Cracking in the holed (perforated) brake disc friction plates is in an advanced state.
- Brake disc minimum thickness is not attained due to wear (material erosion due to friction).
WEAR LIMIT TECHNICAL DATA AND SPECIFICATIONS - BOXSTER S
| Designation | Note, dimensions | Wear limit | |||
|---|---|---|---|---|---|
| Pad thickness | front | approx. 12.0 mm | 2 mm | ||
| Pad thickness | rear | approx. 10.5 mm | 2 mm | ||
| Brake disc thickness, new | front | 28 mm | |||
| Brake disc thickness, new | rear | 24 mm | |||
| Minimum brake disc thickness after machining(1) | front | 26.6 mm(1) | |||
| Minimum brake disc thickness after machining(1) | rear | 22.6 mm(1) | |||
| Brake disc wear limit | front | 26.0 mm | |||
| Brake disc wear limit | rear | 22.0 mm | |||
| Peak-to-valley surface roughness of the brake disc after machining, max. | 0.006 mm | ||||
| Thickness tolerance of the brake discs, max. | 0.02 mm | ||||
| Lateral runout of the brake disc, max. | 0.03 mm | ||||
| Lateral runout of the wheel hub, max. | 0.03 mm | ||||
| Lateral runout of the brake disc when installed, max. | 0.06 mm | ||||
| Pushrod play (measured at the brake pedal plate) | approx. 1 mm | ||||
| Parking brake (handbrake) | Drum brake acting mechanically on both rear wheels | ||||
| Parking brake drum | 180 mm | 181 mm | |||
| Brake shoe width | 25 mm | ||||
| Brake pad thickness | 4.5 mm | 2 mm | |||
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