Gauges
This section provides the general description and func-
tion of the gauges found on a boat.
1 Tachometer
Gives the engine speed in RPM (revolutions per
minute).
2 Speedometer
Provides boat speed.
3 Temperature Gauge
Shows engine temperature, measured in the cool-
ing water or coolant.
4 Oil Pressure Gauge
Indicates the engine oil pressure. Look for trends or
changes in the oil pressure reading. Lower oil pres-
sure is normal and should be expected at idle after
a sustained cruise.
5 Voltmeter
Shows the voltage in the electrical system. When
the engine is running, alternator charge voltage is
shown, normal reading is approximately 14 volts.
When the engine is off (key on), battery voltage is
shown, normal voltage is approximately 12 volts.
6 Fuel Gauge
Provides fill level of fuel tank(s).
7 Trim Gauge
Position of the drive relative to vertical, explained in
more detail at Trim Gauge page 19 .
P0018173
Instruments and Controls
47706149 09-2015 © AB VOLVO PENTA 17
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