540
PROPULSION SYSTEMS
Studio ti 03312 540-04usa
146
8
8.9 PROPULSION ENGINES MAINTENANCE
Item Maintenance Notes and precautions
Alternator Check Check that alternator and battery charger work correctly. If the batteries are charged
correctly, the ammeter value must be very close to the 0. All batteries must be kept charged.
Alternator belt Inspection
Adjustment
Replacement
To optimize the engine performance, check if the belt is worn out or cracked. Check the belt
tension. Adjust the tension of the belt to reduce slipping. A possible slipping shortens the
belt life.
Read carefully the service manual supplied by the manufacturer.
Cooling liquid Draining
Washdown
Filling
Check
Addition
Additional additive (SCA)
Clean the cooling system and wash it before the service interval recommended.
Stop the engine and let it cool down. Unlock the filling plug slowly to release the pressure,
then remove it.
Open the drain valve (if installed). If the cooling system is not equipped with this valve,
remove the drain plugs and drain the coolant.
Fill the cooling system with long life coolant (ELC). For further details about cooling system
specifications, see the instruction manual.
Unlock the plug of recovery tank slowly to release the pressure, then remove it.
Pour the long life coolant (ELC) into the proper recovery tank up to flush reference “COLD
FULL”. DO NOT fill the tank beyond above mentioned level.
Clean the recovery tank plug and fit it. Start the engine. Check for leaks in the cooling
system and if the operating temperature is correct.
Coolant temperature
controller
Replacement Replace the water temperature controller before it fails. This is a suggested preventive
maintenance practice. The controller replacement avoids possible unforeseen down-times.
A water temperature controller that fails into partial open position, can cause overheating or
excessive cooling of the engine.
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