Fill - PIAGGIO MSS Fly 50 4T Workshop Manual

Braking system
Loctite 243 medium-strength threadlock
Locking torques (N*m)
Screw tightening calliper to the support 20 ÷ 25 Pad fastening pin 19.6 ÷ 24.5

Fill

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
BRAK SYS - 138
MSS Fly 50 4T