7 - 4
Braking system
07_005
07_007
Brake discs
Checking disc thickness
It is important to check the brake discs. The discs
should always be perfectly clean and free from rust,
grease and dirt and shown no deep scoring.
Thickness of front discs when new .............. 4.0 mm
Thickness of rear disc when new ................. 5.0 mm
Wear limit (front discs) ................................. 3.5 mm
Wear limit (rear) ........................................... 4.5 mm
07_004
07_006
Checking disc distortion
Take down the wheel and, using suitable equipment,
check that the axial runout of the braking surface does
not exceed the specified limit.
Max. axial runout: 0.1 mm
If the runout exceeds the specified limit, replace the disc
as described below and repeat the measurement.
If the problem persists, check and if necessary replace
the wheel hub.
Note: When refitting, thoroughly clean the disc and its
seat on the hub.
Replacing the front brake discs
Follow these steps:
- Remove the front wheel as described in Chapter 6-
Front and rear suspensions.
- For each disc, loosen the five screws shown.
- Carefully clean the seats on the front wheel hub and
the discs.
- When fitting the disc, take care to position it properly
by referring to the arrow stamped on it.
- Tighten the screws with the prescribed torque and
smear them with LOCTITE Threadlocker medium 242.
Note: The disc side bearing the arrow indicating the
direction of rotation must face the outside of the vehicle.
Tightening torques:
Brake disc fixing screws: 5 - 6 N·m
Replacing the rear brake disc
- Remove the rear wheel as described in Chapter 6-
Front and rear suspensions.
- Remove the hub with the brake disc.
- Follow the same procedure used for the front brake
discs.
Note: The disc side bearing the arrow indicating the
direction of rotation must face the outside of the vehicle.
Tightening torques:
Brake disc fixing screw: 14 - 17 N·m
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