Instrument cluster
Tachometer
The tachometer is divided into three
zones. When driving on level roads, the
needle should be steady and remain
within the green zone.
The dark zone between green and red is
used when engine braking as the engine
brake is the most effective within this
engine speed range.
Speedometer
Shows the bus speed in km/h combined
with mph.
Brake pressure gauge
Indicates the air pressure for the brake
circuits.
In normal driving the brake pressure
gauge needle should remain within the
green zone. During braking it can move
below the green zone for a short time.
Fuel gauge
The fuel gauge shows the amount of fuel
in the tank.
A volume of fuel in the tank lower than
12% of a full tank will give a warning.
Engine coolant temperature gauge
Shows the temperature in the engine
cooling system.
The engine has overheating protection
that regulates the engine output down to
50% when the indicator reaches the red
zone.
You can continue to drive the bus even
when the overheating protection is out of
order.
CAUTION
The bus must not be driven if the
temperature should rise any further as this
may cause further damage to the engine.
Turbo pressure gauge
The turbo pressure gauge measures the
overpressure in the inlet pipe. A higher
turbo pressure means a higher fuel
consumption.
Use it to drive as economically as
possible. In normal driving on flat roads,
the needle should stay within the green
zone.
04
Instruments and controls
32
To Next Page
Loading...
