MOTO GUZZI California 1400, Instructions Manual

Page: 362 / 411

BLEEDING SYSTEM WITH DIAGNOSTICS INSTRUMENT
This type of bleeding has to be carried out if after all the checks the brake lever and the pedal
are still spongy.
The operations described here are valid for both systems even though the description refers to
the front system.
FRONT
•
With diagnostics instrument properly connected, select the function "FRONT BRAKE
BLEEDING PROCEDURE".
•
The pump starts rotating.
•
While the pump is performing a rotation cycle, operate and release the front brake lever until
the message diagnostics instrument cycle completion is received.
•
This procedure allows the air to turn and to accumulate.
•
Once the procedure with diagnostics instrument is finished, perform the REGULAR BLEED-
ING to remove the air from the system completely.
CAUTION
PERFORM THE REGULAR BRAKING SYSTEM BLEEDING, AS DESCRIBED AT THE END OF THE
CHAPTER.
See also
Front
Rear
Front
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 control and by poor braking efficiency.
CAUTION
CONSIDERING THE DANGER FOR VEHICLE AND RIDER, IT IS STRICTLY NECESSARY, AFTER
REFITTING BRAKES AND RESTORING THE BRAKING SYSTEM TO THE REGULAR USE CON-
DITIONS, THAT THE HYDRAULIC CIRCUIT BE AIR PURGED.
NOTE
THE FOLLOWING OPERATIONS REFER TO ONLY ONE FRONT BRAKE CALLIPER BUT APPLY
TO BOTH CALLIPERS. THE VEHICLE MUST BE ON LEVEL GROUND TO BE PURGED. 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.
REGULAR AIR BLEEDING SYSTEM
Braking system
California 1400
BRAK SYS - 362