PIAGGIO 2012 MSS APE 50, Service Station Manual

Page: 89 / 117

CAUTION
BRAKE FLUID IS HYGROSCOPIC; IT TENDS TO ABSORB MOISTURE FROM THE SURROUND-
ING AIR.
IF THE HUMIDITY IN THE BRAKE FLUID IS ABOVE A GIVEN VALUE, BRAKING IS POOR.
UNDER NORMAL DRIVING AND CLIMATIC CONDITIONS YOU SHOULD CHANGE THE FLUID
EVERY TWO YEARS.
IF THE BRAKES UNDERGO SEVERE OPERATING CONDITIONS THE LIQUID SHOULD BE RE-
PLACED MORE FREQUENTLY.
CAUTION
WHEN REFILLING TO LEVEL USE ONLY THE TYPE OF LIQUID THAT HAD BEEN USED PREVI-
OUSLY.
Recommended products
AGIP BRAKE 4 Brake fluid
FMVSS DOT 4
Drum removal
In the filling operations, a maximum oversize of 0.4
mm on the regular drum diameter is allowed.
Shoe and drum clearance adjustment
Before performing the adjustment between the
shoe and the drums, it is necessary to set the
brakes in motion, in a way that ensures the cen-
tring of said shoe.
Then act as follows for each wheel:
Lift the wheel off the ground, lower of the brake
pedal to the bottom until it brings the shoe against
the drum.
Holding down the pedal, rotate the nuts of the ad-
justment eccentricities outwards until they stop,
then rotate them in the opposite direction by about
45°.
MSS APE 50
Braking system
BS - 89