Front
-Once the bleed valve is closed, fill the system with
brake liquid to the maximum level.
-Undo the bleed screw.
-Apply the tube of the special tool to the bleed
screws.
When bleeding it is necessary to fill the oil tank in
continuation while working with a MITYVAC pump
on the bleed screws until no more air comes out of
the system.
The operation is finished when just oil comes out
of the bleed screws.
-Do up the bleed screw.
-When the operation is over, tighten up the oil
bleed screw to the prescribed torque.
N.B.
IF AIR CONTINUES TO COME OUT DURING PURGING, EX-
AMINE ALL THE FITTINGS:
IF SAID FITTINGS DO NOT SHOW SIGNS OF BEING FAUL-
TY, LOOK FOR THE AIR INPUT AMONG THE VARIOUS
SEALS ON THE PUMP AND CALLIPER PISTONS.
CAUTION
- DURING THE OPERATIONS, THE VEHICLE MUST BE ON
THE STAND AND LEVEL.
N.B.
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 MityVac vacuum-operated pump
Recommended products
Liberty 125 - 200 4tempi Braking system
BRAK SYS - 149
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