APRILIA Atlantic 500 Workshop Manual page 45

Periodic Maintenance Operations
• Start the engine and let it idle.
• Place a container under the engine to gather any
coolant coming out of breather screw (5).
CAUTION
The coolant in the circuit is under pressure. To
avoid dangerous spurts, loosen breather screw (5)
slowly and moderately.
• Loosen breather screw (5) on thermostatic valve
(6); allow a moderate quantity of coolant to flow
out together with any air bubbles and then tighten
breather screw (5).
• Check the level of the fluid in expansion tank (2)
and then top up to the MAX level (see page 2-25
CIRCUIT BLEEDING for the bleeding).
• Ride a few kilometres until the engine reaches the
normal operating temperature.
CAUTION
Switch off the engine and allow the engine and the
exhaust system to cool down.
To refit the plastic parts follow the reverse procedure.
CAUTION
If coolant consumption is excessive, or if the
coolant runs out in the tank, check for possible
leakage from the circuit.
The coolant is harmful: DO NOT INGEST
KEEP OUT OF REACH OF CHILDREN
CAUTION
Only use nitrite-free anticorrosive and antifreeze
agents providing a protection at temperatures of
-35° C (-31° F) or lower
For more information on the cooling system, see
(COOLING SYSTEM).
2-24
Release 00 2002-09
6
5
chap. 2
Atlantic 500