APRILIA RSV4 RR Service Station Manual page 490

Braking system
•
Take care of hose position on the sup-
port.
1. Goes to the pump.
2. Goes to the caliper.
•
After replacing hoses or the control unit the entire ABS system must be bled.
To bleed the ABS system optimally, it is advisable to use devices such as vacuum pumps or similar.
CAUTION
MORE OIL IS REQUIRED TO BLEED THE ABS SYSTEM THAN A CONVENTIONAL SYSTEM. FOR
THIS REASON, CAREFULLY CHECK THE OIL LEVEL IN THE BRAKE TANK.
If there is a lever or brake pedal "sponginess" although the bleeding has been done, bleed the secondary
circuit in the ABS control unit. To do this, carry out a road test by repeatedly activating the ABS posi-
tioning its threshold to level 3
After the bleeding has been done, delete any errors with the diagnostics instrument on the ABS control
unit and on the 7SM one.
Before returning the vehicle, carry out a functional road test.
REPLACING/ACTIVATING NEW ABS CONTROL UNIT
In case of replacement of the ABS control unit, ensure that the new one has caps on all four hydraulic
connections and then proceed as follows:
•
Before disconnecting the electrical connections, switch the key "OFF".
•
After hydraulic and electrical connection of the new ABS control unit, activation/recognition
must be carried out.
•
Switch the key "ON".
•
Verify that the ABS indicator light flashes rapidly.
•
Turn the key to "OFF" and then back to "ON".
•
If activation is successful, the warning light should light up with a slow flash.
•
In case of faults, the indicator light should be steady with the diagnostics instrument dis-
connected.
•
Connect the diagnostics instrument and check if there are errors.
BRAK SYS - 490
RSV4 RR/RF