Owner`s manual

AJP PR4 User’s manual - 3
rd
Edition Page
23
Clean the brake calliper and calliper
support with compressed air. Check the
sleeves of the guide bolts for damage
and grease guide bolts if necessary.
Mount both brake pads and then insert
the clips the right way, to allow brake
pads to jump off or lose, in order to
avoid accidents.
Install front calliper at the front fork,
placing disc between pads.
Apply thread glue at the bolts end
and tight them correctly.
If necessary, readjust digital
speedometer sensor positioning in
order to have the correct gap -
0,7 ~1,0mm - between magnetic
insert and sensor
! WARNING !
Keep brake discs free from oil and
fatty materials; otherwise braking
effect will be strongly reduced.
Having performed any work on the
braking system, one must always
actuate hand brake lever or foot
brake pedal, to ensure that brake
pads will fit against brake disc and
pressure is established.
Changing the basic position of the
brake pedal
Free play can be changed by turning
piston (1).
Measured on the outside, the foot brake
pedal must have 3 to 5 mm of free play,
before the piston rod can move the
piston in the rear brake cylinder.
! CAUTION !
If free play is not present, then
pressure can build up in the brake
system when driving, causing rear
wheel to brake. Brake system can
overheat and may even completely
fail in extreme cases.
Don’t ride with foot pressing rear
brake pedal.
Checking rear brake fluid level
The reservoir for the rear disc brake is
integrated in brake pump, placed in the
right side of the engine, near exhaust
pipe.
Brake fluid level must not drop below
the “MIN” marking when the vehicle is
in an upright position.