PIAGGIO Beverly 250 USA Workshop Manual page 251

Beverly 250 USA
Cooling system
- Warm up the container using the heat gun.
- Check the temperature when the thermostat
starts to open:
- Heat up until the thermostat is completely open
- Replace the thermostat if it does not work prop-
erly.
CAUTION
TO EXECUTE THE TEST CORRECTLY, MAKE
SURE NEITHER THE THERMOSTAT NOR THE
THERMOMETER TOUCHES THE CONTAINER.
Specific tooling
020331Y Digital multimeter
020151Y Air heater
Characteristic
Thermostat check: opening travel
3.5 mm at 80°C
Thermostat check: Opening start temperature
69.5 ÷ 72.5°C
1) Look to see that the thermostat is not damaged.
2) Fill a metal container with approx. 1 litre of wa-
ter.
Immerse the thermostat, and keep it in the centre
of the container.
Immerse the multimeter temperature probe draw-
ing No° 020331Y closeà to the thermostat.
Heat the container with a hot air gun drawing No°
020151Y.
Check the temperature when the thermostat starts
to open:
Opening start temperature: 69.5 ÷72.5°C
Heat up until the thermostat is completely open.
Opening travel: 3.5 mm at 80°C
CAUTION - To execute the test correctly, make
sure neither the thermostat nor the thermometer
touches the container.
3) Replace the thermostat if it is not working prop-
erly.
COOL SYS - 11