Grady-White Boats Express 370, Owner'S Manual

Page: 36 / 123

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N S T R U M E N T A T I O N A N D
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W I T C H E S
5–2
• Speedometer
This feature indicates boat speed in miles per hour, knots per hour, or nautical miles per hour.
On boats with V8 engines, this gauge must be interfaced with a GPS.
• Trip Distance Meter
This feature indicates the distance traveled in miles or nautical miles since the meter was last
set.
• Revolutions Per Minute (RPM)
This feature indicates the RPM using 100 RPM intervals. Consult your engine owner's manual
for the recommended operating RPM range.
• Trim Position
This feature indicates the angle of thrust of the engine. See “Trim” on page 4–1 for
adjustment recommendations.
• Battery Voltage Indicator
This feature indicates the battery charge when the engine is off and indicates the alternator
output when the engine is running. A reading of 12 or 13 volts is normal indicating a fully-
charged battery. Readings of 11 or below indicate a weak battery which may not start the
engine. A reading of 13 to 15 volts when the engine is running is normal. Readings over 15
volts may indicate regulator problems. Low or fluctuating readings may indicate loose
connections or trouble in the regulator and alternator circuit.
• Cooling Water Temperature with Warning
This feature indicates the temperature of the cooling water circulating through the engine and
warns you when the temperature exceeds the recommended operating range indicated by your
engine owner's manual. Should you receive this warning, immediately shut off your engine to
prevent damage. Overheating is often caused by obstruction of your engine's intake on the
lower unit. Check this water intake first if you experience trouble.
• Hour Meter
This feature records the cumulative number of hours the engine has been in use.
• Trip Hour Meter
This feature indicates the number of hours the engine has been in use since it was last set.
• Oil Pressure with Warning
This feature indicates the engine oil pressure with a warning for low oil pressure. Refer to
your engine owner's manual for information regarding engine oil and oil pressure.