PIAGGIO Beverly 500 i.e., Workshop Manual

Page: 304 / 382

- Select the menu on the "ACTIVE DIAGNOSIS"
function and start the electric fan operation simu-
lation (see "Injection" chapter).
- If the electric fan is certainly efficient, check the
ventilation start and stop temperatures.
- Select the «PARAMETERS» function in this
menu to display the coolant temperature.
- If non-conforming values are detected, replace
the injection control unit (see "Injection" chapter).
- If the analogue instrument temperature is close
to the red zone, but the degrees indicated by the
diagnostic tester is below the electric ventilation
temperature, check the temperature sensor on the
head and the relevant injection circuit (see Injec-
tion chapter);
N.B.
THE ELECTRIC VENTILATION TEMPERATURE AT 106° C
CAN ONLY BE MANAGED WITH A SYSTEM SUPPLIED
WITH A 50% MIXTURE AND PRESSURISED AT 0.9 BAR.
Characteristic
Electric fan start
106°C
Electric fan stop
98°C
- Avoid starting the engine without pressurisation since it may reach the boiling temperature before the
electric ventilation starts.
- In case of increase of the electric ventilation time, check the thermostat opening temperature and
check that the coolant density is correct. The optimum density is obtained with a 50% water and cooling
circuit fluid mixture.
Cooling system
Beverly 500 i.e.
COOL SYS - 304