PIAGGIO Beverly 500 i.e. Workshop Manual page 308

Cooling system
Specific tooling
020680Y Diagnosis Tool
•
Check the temperature read by the diagnostic tester.
•
If opening occurs at different temperatures, check the thermostat.
•
Remove the thermostat as described in the flywheel cover paragraph.
Characteristic
Thermostat opening start
approx. 82±2°C
•
Visually check that the thermostat ex-
hibits no mechanical faults.
•
Prepare a metal container with approx.
1 litre of water.
•
Immerse the thermostat, and keep it in
the centre of the container.
•
Immerse the multimeter thermometer
probe close to the thermostat.
•
Heat up the container using the ther-
mal gun.
•
Heat the water and periodically pull the
thermostat out until its opening be-
comes visible.
•
Insert a thin copper wire between the
seat and the thermostat closing plate.
•
Keep the wire into position until locking
up is perceived.
•
Let water and thermostat cool down.
•
Progressively heat the water keeping
the thermostat immersed by the wire.
•
Check the opening temperature when
the thermostat releases from the wire.
Specific tooling
020331Y Digital multimeter
020151Y Air heater
•
Heat to obtain the thermostat full opening
•
If incorrect values are detected, replace the thermostat.
•
Repeat the filling and venting procedure.
N.B.
HEATING SHOULD BE GRADUAL.
COOL SYS - 308
Beverly 500 i.e.