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The motorcycle is fitted with a cooling fan controller situated behind the radiator which
controls the two cooling fans. When the fans operates with the motorcycle stationary or
at slow speed, cool air is drawn through the radiator from the front of the motorcycle.
The cooling fan controller controls the cooling fans at various speeds depending on the
temperature of the coolant. The controller will switch on the fans at their minimum
speed when the coolant temperature reaches 91°C. As the coolant temperature rises the
controller will gradually increase the cooling fans speed until they are at maximum speed
and the coolant temperature is at 103°C.
When the fans operate with the motorcycle stationary or at slow speed, cool air is drawn
through the radiator from the front of the motorcycle.
1. Check that the cooling fans spin freely and without tight spots.
2. Check the cooling fans blades for signs of heat distortion.
3. Rectify as necessary.
Coolant
From VIN AG0784 the coolant was changed from Triumph HD4X Hybrid OAT coolant
to Triumph D2053 OAT coolant.
If the Triumph HD4X Hybrid OAT coolant is drained the cooling system must be
flushed through prior to filling the cooling system with the Triumph D2053 OAT
coolant.
A year-round, Hybrid Organic Acid Technology (known as Hybrid OAT or HOAT) coolant
is installed in the cooling system when the motorcycle leaves the factory. It is coloured
green, contains a 50% solution of ethylene glycol based antifreeze, and has a freezing
point of -35°C (-31°F).
Always change the coolant at the intervals specified in the Scheduled Maintenance chart.
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