APRILIA SHIVER 900, Service Station Manual

Page: 362 / 444

A control unit (1) signals this out and adjusts the pressure in the braking circuit accordingly.
CAUTION
WHEN THE ABS STARTS WORKING, A PULSING IS FELT ON THE BRAKE LEVER.
THE WHEEL ANTILOCK BRAKING SYSTEM DOES NOT PREVENT FALLS WHILE ON A BEND.
AN EMERGENCY BRAKING WITH THE VEHICLE INCLINED, HANDLE BAR TURNED, ON UN-
EVEN OR SLIPPERY ROADS, OR WITH POOR GRIP CREATES LACK OF STABILITY DIFFICULT
TO HANDLE. THEREFORE, RIDE CAREFULLY AND SENSIBLY AND ALWAYS BRAKE GRADU-
ALLY. BRAKING WHILE TURNING A CORNER IS SUBJECT TO LAWS OF PHYSICS WHICH NOT
EVEN ABS CAN ELIMINATE.
When sensors (3) detect a significant speed difference between the rear and the front wheels (for
example, when rearing up on the back wheel), the ABS system could take this as a dangerous situation.
In this case, 2 things may occur:
- the ABS system intervenes by releasing pressure from the calliper until the wheel turns again at the
same speed of the other wheel; it is not possible to brake for an instant.
- if the speed difference lasts long, the system may detect an error and deactivates the ABS system.
As a consequence, the system works as any regular braking system.
Riding with an active ABS system
•
During the vehicle start-up, after the in-
strument panel initial check, the ABS
warning light stops flashing when the
speed is under 5 km/h (3.1 mph).
If the ABS warning light remains on when the
vehicle is running, it means that a fault has
been detected and the ABS system has been
automatically deactivated.
IN CASE OF FAILURE OR WITH ABS DISCONNECTED,
THE VEHICLE OPERATES AS IF IT DID NOT HAVE THIS
SYSTEM.
Braking system
SHIVER 900
BRAK SYS - 362