Brake Fluid Check - APRILIA RS4 125 Service Station Manual

RS4 125
THE FLUID IN THE BRAKING CIRCUIT IS HYGROSCOPIC,
THAT IS, IT ABSORBS MOISTURE FROM THE SUR-
ROUNDING AIR. IF THE MOISTURE CONTENT IN THE
BRAKE FLUID EXCEEDS A CERTAIN VALUE, WATER VA-
POUR BUBBLES MAY FORM IN THE CIRCUIT, OR THE
PUMP AND CALLIPERS MAY SEIZE, CAUSING THE
BRAKES THEMSELVES TO SEIZE. NEVER USE BRAKE
LIQUID IN OPEN OR PARTIALLY USED CONTAINERS.

Brake fluid check

•
Rest the scooter on its stand.
•
For the front brake, turn the handlebar
fully to the right.
•
For the rear brake, keep the vehicle
upright so that the fluid in the reservoir
is at the same level with the plug.
•
Check that the fluid level in the reser-
voir is above the "
•
MIN
" reference mark:
MIN = minimum level
MAX = maximum level
If the fluid does not reach at least the "MIN" refer-
ence mark:
•
Check the brake pads and disc for
wear.
•
If the pads and/or the disc do not need
replacing, top-up the fluid.
•
If the pads and/or the disc need replac-
ing, check the brake fluid and top-up if
necessary.
Maintenance
MAIN - 59