Gilera 633721 Workshop Manual page 329

Nexus 500 euro 3
For the system venting during the circuit filling step, there is a special union at the top of the head (see
filling rules).
To ensure cooling in case of poor dynamic ventilation, there is an electric fan controlled by the injection
system.
Specification
Cooling system capacity
Prescribed fluid
Sealing pressure
Specification
Starts opening
Specification
Electric ventilation starts at
Electric ventilation stops at
Specification
Control
Specification
Specification
Calibration
Electric fan check
- Connect the injection diagnostic tester and select
the «ERRORS» function in this menu.
- Check any failures in the electric fan control cir-
cuit (see «Injection»chapter)
Specific tooling
020460Y Scooter diagnosis and tester
TECHNICAL SPECIFICATIONS
THERMOSTAT
Type
ELECTRIC VENTILATION
Type
WATER PUMP
Type
RADIATOR
Type
EXPANSION TANK
Desc./Quantity
1.7 l
Mixture of 50% water and fluid for sealed circuits (PARAFLU
MOTO RIDER)
Cap calibrated at 0.9 bar
Desc./Quantity
Wax-type, with deviator
82 ± 2°C
Desc./Quantity
With piston
107°C
103°C
Desc./Quantity
Centrifugal
Coaxial at the countershaft
Desc./Quantity
Aluminium, with horizontal circulation
Desc./Quantity
Automatic bleeding, in parallel with the radiator
Cooling system
COOL SYS - 329