Brake discs
Due to wear, the thickness of brake
discs in the area of the contact face (1)
of the brake pads decreases. At their
thinnest point (A), the brake discs must
not be more than 0.50mm thinner than
the pads nominal thickness. Measure
the nominal thickness in a location (B)
outside the contact face and check for
wear in several locations.
! WARNING !
- For your own safety, have the
brake discs replaced immediately
as soon as they reach wear limit (3
mm thickness).
- Have any repairs on brake system
performed by an AJP authorized
dealer.
Brake fluid reservoirs
Brake fluid reservoirs have been
designed in such a way that even if the
brake pads are worn it is not necessary
to refill brake fluid. If brake fluid level
drops below the minimum level, either
the brake system has a leak or the
brake pads are completely worn.
In this case, consult an authorized AJP
dealer immediately.
Brake fluid
AJP fills the brake systems with DOT 4
brake fluid; we recommend that you
continue to use it.
Checking the brake fluid level – front
brake
Brake fluid reservoir is linked with the
hand brake cylinder at the handlebar
and the reservoir is provided with an
inspection glass (1). With the reservoir
in horizontal position, the brake fluid
level should not drop below the middle
of the glass.
! WARNING !
If brake fluid level drops below
minimum either brake system has a
leak or the brake pads are
completely worn. In this case,
consult an authorized AJP dealer
immediately.
! WARNING !
Change brake fluid at least once
each two years. If you wash your
motorcycle often, brake fluid should
be changed even more often (once
a year), as brake fluid tends to
absorb water. Therefore, vapour
pockets may form on “old” brake
fluids even at low temperatures,
causing brake system to fail.
1
PR4 User’s manual Page
20
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