Chapter 3 – Maintenance
Service manual AJP PR3/PR4 3 - 30
Act firmly the front brake lever or rear brake
pedal to check that no air entered. If the lever
or pedal is too soft or spongy, it is necessary
to purge the air from the braking system.
Check the condition of the pipes and
fixations. If there is deterioration, cracks or
leaks, the components must be replaced and
put new sealing rings. Tighten loose fixations.
! WARNING !
In case of replacement of the rear brake hose,
it is important to certify its correct position to
ensure that the hose never comes into
contact with the exhaust due to the vertical
movement of the swing arm or to be crushed
between the swing arm and the pump brake.
Brake pads replacement
Front wheel
Remove the brake caliper holder of the fork,
removing the two fixing screws (1).
Press the caliper piston to move away and
retract in order to be able to put the new
pads.
Remove the clips / retaining bolts, then
remove the pads from the caliper.
Clean the caliper holder and the caliper with
compressed air. Check if the sleeves of the
guide bolts are damaged and lubricate it if
necessary.
Assemble both pads and insert the
clips/retention bolts to the correct position
and tighten with specified torque, to ensure
that they will not be lost and the pads do not
jump off, which might lead to accidents.
