Press (
→) on the spring (1) and remove it. Remove the wear
sensors (2) from the brake linings (3).
78623
Figure 89
For vehicles without EBS
49160
For vehicles with EBS
60862
Press (
→) on the spring (1) and remove it. If necessary, replace
it with a new one.
For all vehicles
49161
!
Visually check the conditions of the dust caps, if
deformed or broken it is necessary to replace them.
This requires removing the brake calliper, so it is
recommended to remove the brake calliper body
together with the bearing plate for a thorough
overhaul.
Check that the calliper slides freely on its guides.
If you find any trouble on a single brake calliper it is wise to
overhaul both brake callipers completely.
Remove the dirt from the brake calliper with a wire brush,
without damaging the dust caps.
Clean the sliding surfaces of the brake linings.
Check the conditions of the brake disc and make sure it is not
corroded, scored or grooved. Light surface cracks are
acceptable, but it is necessary to grind the brake disc as
described under the relevant section heading. On the
contrary, if it is worn, replace the brake disc.
If one needs to be replaced, it is recommended to replace
both brake discs.
Check the state of the springs and wear sensors, replace them
if necessary.
Figure 90
Figure 91
Figure 92
Remove dirt and rust from around the edge of the brake disc
with a scraper or an old screwdriver (2) resting on the calliper
body, turning the disc (1).
Finish the job with abrasive cloth. Remove the remains with
the aid of an aspirator, or rags and a brush.
Do not use petrol or other petroleum products that could
cause trouble for the brakes.
Use only methylated spirit or isopropyl alcohol.
Carefully clean the surfaces of the braking area of the brake
disc.
Remove the plug (3). Turn the adjustment device (1)
operating on the adapter counterclockwise with a wrench, to
insert the pistons within the caliper body and extract brake
linings (4), suitably moving the caliper body (3).
!
Never operate directly on the registration pinion (1)
without having first of all fitted the adapter (2). If the
cutting torque of the adapter is exceeded, this will
break.
Test with a new adapter. If this also breaks, the caliper
must be replaced because it is damaged.
S
TRALIS
AT/AD
102
AIR SYSTEM - BRAKES
Base - January 2003