APRILIA TUAREG 660, Service Station Manual

Page: 252 / 311

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Insert split pin (3) in the pin.
•
Check the correct operation of the
brake system.
Bleeding the braking system
PREPARATION OF THE VEHICLE
•
It is important to ensure that there is always a sufficient quantity of brake fluid in the tank.
•
These operations may be simplified by using a bleeding device when carrying out the "Re-
placing the brake fluid" operations.
•
In this case, when performing the bleeding procedure, it is also necessary to operate the
brake pedal a few times with the bleeder device connected (approximately five times for
each wheel circuit).
Front
TRADITIONAL BLEEDING SYSTEM
WARNING
BLEED BOTH FRONT BRAKE CALLIPERS
Any air trapped in the hydraulic circuit acts as a cushion, absorbing much of the pressure applied by
the brake pump and minimising the braking power of the calliper.
The presence of air is signalled by the "sponginess" of the brake and by poor braking.
CONSIDERING THE DANGER FOR VEHICLE AND RIDER, IT IS STRICTLY NECESSARY, AFTER
REFITTING THE BRAKE CALLIPERS AND RESTORING THE BREAKING SYSTEM TO ITS REG-
ULAR USE CONDITIONS, SO THAT THE HYDRAULIC CIRCUIT IS AIR PURGED.
NOTE
THE FOLLOWING OPERATIONS REFER TO ONE FRONT BRAKE CALLIPER ONLY, BUT ARE
VALID FOR BOTH. THE VEHICLE MUST BE ON LEVEL GROUND TO BE BLED. WHILE PURGING
THE HYDRAULIC SYSTEM, FILL THE RESERVOIR WITH THE NECESSARY QUANTITY OF
BRAKE FLUID. CHECK THAT, DURING THE OPERATION, THERE IS ALWAYS BRAKE FLUID IN
THE RESERVOIR.
Braking system
TUAREG 660
BRAK SYS - 252