APRILIA RS 250 Service And Repair Manual page 234

RS 250
BRAKE FLUID


This vehicle is provided with front and rear
disc brakes, with separate hydraulic circuits.
The following information refers to a single braking
system, but is valid for both.

Brake fluid may cause irritation if it comes into
contact with the skin or eyes.
Carefully wash the part of the body that has
come into contact with the fluid.
Consult an oculist or a physician if the fluid comes
into contact with your eyes.
DO NOT DISPOSE OF BRAKE FLUID IN THE ENVI-
RONMENT.
KEEP BRAKE FLUID AWAY FROM CHILDREN

When using the brake fluid, take care not to
spill it on the plastic or painted parts, since it
can damage them.
Check every 1000 km (625 mi) the brakes fluid level;
see p. 2-30 (BRAKES); change it every year.


Recommended brake fluid:
F.F. DOT 5 (compatible DOT 4)

To avoid serious damage to the braking sys-
tem, do not use fluids other than the recom-
mended ones nor mix different fluids for top-
ping up.
Do not use brake fluid taken from old or already
opened containers. Do not use brake fluid left from
previous repairs if they were done some time ago.
Sudden variations in clearance or an elastic resist-
ance in the brake levers may be due to trouble in the
hydraulic circuits.
Make sure that the brake discs and the friction pads
are completely free of grease or oil, especially after
maintenance or checking operations.
Check that the brake cables are not twisted or worn.
Make sure that neither water nor dust accidentally en-
ter the circuit.
In case maintenance operations are to be performed
on the hydraulic circuit, it is advisable to use latex
gloves.
COOLANT

The coolant is noxious: do not swallow it; if
the coolant gets in contact with the skin or the
eyes, it can cause serious irritations. If the
coolant gets in contact with your skin or eyes, rinse
with plenty of water and consult a doctor. If it is swal-
lowed, induce vomit, rinse mouth and throat with
plenty of water and consult a doctor without delay.
DO NOT DISPOSE OF BRAKE FLUID IN THE ENVI-
RONMENT.
KEEP BRAKE FLUID AWAY FROM CHILDREN

Be careful not to spill the coolant on the red-
hot parts of the engine: it may catch fire and
send out invisible flames.
In case maintenance operations are to be performed,
it is advisable to use latex gloves.
Do not remove the expansion tank cap when the en-
gine is hot as the coolant is under pressure and at a
very high temperature.
Do not use vehicle if the coolant level is below the
minimum prescribed.
Check coolant level every 2000 km (1250 mi) and change
it every 2 years, see p. 2-24 (COOLING SYSTEM).
The coolant is composed of 50% water and 50% anti-
freeze. This mixture is ideal for most running tempera-
tures and ensures good protection against corrosion.
It is advisable to keep the same mixture in the hot season
as well, since in this way losses due to evaporation are
reduced and it is not necessary to top up so frequently.
The mineral salt deposits left in the radiator by evaporat-
ed water are thus lessened and the efficiency of the cool-
ing system remains unaltered.
If the outdoor temperature is below 0°, check th cooling
circuit frequently and inf necessary increase the anti-
freeze concentration (up to maximum 60%).
Use distilled water for the cooling solution so as not to
damage the engine.
Recommended coolant:
On the basis of the desired freezing temperature of the
coolant mixture, add to the water the percentage of cool-
ant indicated in the following table:
Freezing point
°C
-20°
-30°
-40°


The characteristics of the various antifreeze
liquids are different. Be sure to read the label
on the product to learn the degree of protection it
guarantees.

Use only antifreeze and anticorrosive without
nitrite in order to ensure protection at at least
-35°C.
 




ECOBLU -40°
Coolant
of the volume %
35
45
55
9 - 13