Derbi BOULEVARD 50 2T, Workshop Manual

Page: 103 / 154

DURING PURGING FREQUENTLY CHECK THE LEVEL TO
PREVENT AIR GETTING INTO THE SYSTEM THROUGH
THE PUMP.
WARNING
- BRAKING CIRCUIT FLUID IS HYGROSCOPIC. IT AB-
SORBS HUMIDITY FROM THE SURROUNDING AIR.
IF THE LEVEL OF HUMIDITY IN THE BRAKING FLUID EX-
CEEDS A GIVEN VALUE, BRAKING EFFICIENCY WILL BE
REDUCED.
THEREFORE, ALWAYS USE FLUID FROM SEALED CON-
TAINERS.
UNDER NORMAL DRIVING AND CLIMATIC CONDITIONS
YOU SHOULD CHANGE THIS LIQUID EVERY TWO YEARS.
IF THE BRAKES ARE USED INTENSELY AND/OR IN
HARSH CONDITIONS, CHANGE THE FLUID MORE FRE-
QUENTLY.
CAUTION
WHEN CARRYING OUT THE OPERATION, BRAKE FLUID
MAY LEAK FROM BETWEEN THE BLEED SCREW AND ITS
SEAT ON THE CALLIPER.
CAREFULLY DRY THE CALLIPER AND DEGREASE THE
DISC SHOULD THERE BE OIL ON IT.
Specific tooling
020329Y Mity-Vac vacuum-operated pump
Recommended products
AGIP BRAKE 4 Brake fluid
FMVSS DOT 4 Synthetic fluid
Locking torques (N*m)
Oil bleed screw
8 ÷ 12
Front brake pump
-After removing the front and rear handlebar covers, act on the two stand fixing points (see the figure).
- Disconnect the tube, collecting the brake oil in a container.
- On refitting, perform the operation in reverse.
- Tighten the hydraulic line to the prescribed torque
and bleed the system.
Locking torques (N*m)
Brake fluid pump - hose fitting
20 ÷ 25 Nm
Braking system
BRAK SYS - 103