Care
Point:
If disc minimum weight is reached, renew discs as an axle set.
If disc reaches its maximum mileage, there will be no loss in performance but an increased risk of permanently damaging
the disc.
At every service or replacement of pad, please make a note in the service manual of the disc weight (measured and
residual) and mileage of the vehicle. From this information an estimation of disc life can be created.
Residual disc weight is calculated by subtracting the minimum disc weight from the measured disc weight.
Estimated disc life calculations are only suitable if the same type of usage has occurred between measurements.
If estimated disc life is very close to the mileage vehicle is currently on, recommendation is to change discs.
Disc thickness must always be measured from the base of the outer edge. Maximum wear limit for a CCM disc is the
original disc thickness minus 0.5mm. If the difference is greater than 0.5 mm, renew disc.
The thickness change in a CCM disc does not provide a conclusive level of wear experienced. To get this information the
disc must be weighed.
Before weighing the disc, it must be thoroughly cleaned including all cross drilled holes.
The disc must be dry and free of moisture, due to the porous nature of the CCM material.
Suitable and calibrated weighing scales must be used when carrying out this procedure.
Due to the fibres in the CCM disc oxidizing when subjected to extreme thermal pressure, the mass of the disc will be
reduced. Because of this the CCM brakes must be weighed annually, every 15000 km, and before and after track use to
ensure that they are still suitable for use.
Checking carbon ceramic brake disc (CCM)
–
Weight
Care
Point:
When weighing discs, ensure that
the scales used have an accuracy
range of +/- 2.5 grams.
1.
Put disc on scales.
2.
Register measured disc weight.
Care
Point:
If measured weight is within 20g,
equal to, or less than the marked
minimum weight, the disc must be
renewed. Please ensure that discs
are renewed in axle sets.
3.
Check measured weight against marked
minimum weight on disc bell (G).
4.
To measure the estimated disc life using data
recorded for mileage and residual disc weight,
please use the following formula:
1st Service mileage (ODO1)
= 15000km
Residual
weight (R1) =
118g
2nd Service mileage
(ODO2) = 25000km
Residual
weight (R2) =
67g
Wear estimate (WE) = (R2
–
R1) / (ODO2
–
ODO1)
WE = (67
–
118) / (25000
–
15000)
WE = -51 / 10000
WE = -0.0051
Estimated disc life (EDL) =
ODO2
–
(R2 / WE)
EDL = 25000
–
(67 /
-0.0051)
EDL = 25000
–
(-13137)
EDL = 38137km
35
Summary of Contents for MP4-12C
Page 1: ......
Page 35: ...5 Disc Cross Drilled Hole Chip on disc Do not renew disc 1 34 ...
Page 52: ...2 Detach union nut 2 M10 17 Nm 3 Loosen nut 3 4 Remove front brake hose 4 51 ...
Page 69: ...2 Detach union nut 2 M10 17 Nm 3 Loosen nut 3 4 Remove rear brake hose 4 68 ...
Page 98: ...Description Dimension Value Bolt Floor panel tunnel M6 x 16 10 Nm 97 ...
Page 104: ...1 Remove bolts 1 M6 x 20 4 Nm 2 Remove tyre spoilers 2 Remove front guide vanes 103 ...
Page 105: ...1 Remove screws 1 M6 x 16 6 Nm 2 Remove front guide vanes 2 Remove rear guide vanes 104 ...
Page 125: ...Description Dimension Value Track rod steering rack M14 30 Nm 124 ...
Page 194: ...4 Remove bolts 2 M6 x 20 8 Nm 5 Remove bolts 3 M6 x 16 8 Nm 193 ...
Page 195: ...5 Remove bolts 3 M6 x 16 8 Nm 6 Remove bolts 4 M6 x 16 8 Nm 194 ...
Page 196: ...6 Remove bolts 4 M6 x 16 8 Nm 7 Remove bodyside lower rear arrows 195 ...
Page 203: ...Description Dimension Value Clamp ISG to Throttle M6 5 Nm 202 ...