Volvo Penta D4 Operator's Manual page 13

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Gauges
Tachometer
The tachometer displays engine speed; multiply the
value shown on the dial by 1,000 to get the number of
engine revolutions per minute.
Boat and engine information is displayed in the tach-
ometer window. Information displayed depends on
engine type, the number of sensors and which acces-
sories are installed.
Optional instruments
These instruments are sold as engine options by Volvo
Penta.
1 Fuel level gauge
The fuel level gauge shows the quantity of remain-
ing fuel.
2 Voltmeter, battery charging
The meter shows the alternator charge current.
During operations the charge voltage should be
around 14 V. When the engine is stopped and elec-
trical power switched on the battery voltage should
be around 12 V.
If a 24 V system is installed, the charge voltage
should be around 28 V during operations.
3 Coolant temperature gauge
The instrument shows engine coolant temperature.
During operations coolant temperature should nor-
mally be between 75-95°C (167-203°F).
4 Oil pressure gauge
The oil pressure gauge displays engine oil pres-
sure. During operations the oil pressure gauge
should normally show 3-5 bar. At idle, lower values
are normal.
5 Fresh water level sensor
Freshwater tank level gauge.
6 Rudder position indicator
The instrument shows rudder position.
7 Trim indicator, analog, for Aquamatic engines
The analog indicator shows the position of the stern
drive in relation to the transom shield.
8 Trim indicator, digital, for Aquamatic engines
The digital indicator shows the position of the stern
drive in relation to the transom shield.
9 Alarm monitor
The alarm monitor gives a visual warning to call
attention to any alarms that occur.
Instruments and Controls
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