Volvo TAMD74C, Operator'S Manual

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24
Operation
It is important to learn how to operate the engine, controls and other equipment safely and properly before setting
off on a maiden voyage. Avoid violent and unexpected changes in course and gear engagement. There is a risk
that someone aboard will fall over or overboard.
WARNING! A rotating propeller can cause serious injury. Check that nobody is in the water before engag-
ing ahead or astern. Never drive near bathers or in areas where people could be in the water.
Check the instruments
Check the instruments and warning display directly after
start and regularly during operation.
Oil pressure
The oil pressure gauge must display 420–650 kPa (61–94
psi) during normal operation. At engine idle this is normally
lower.
The acoustic alarm sounds and the lamp in the warning
display starts to flash if the oil pressure is too low.
IMPORTANT! In the event of a low oil pressure
alarm: Stop the engine immediately. Investigate and
correct the malfunction.
Engine coolant temperature (ECT)
The temperature gauge must display 75–90°C (167–
194°F) during normal operation.
The acoustic alarm sounds and the lamp in the warning
display starts to flash if the engine coolant temperature
(ECT) is too high.
IMPORTANT! In the event of a high engine coolant
temperature (ECT) alarm: Reduce engine speed to
idle (neutral). Stop the engine if the temperature does
not drop. Investigate and correct the malfunction.
Charging
During operation, the charge voltage gauge should show a
reading of 14 V or 28 V for a 12 respectively 24 V system.
The acoustic alarm will sound automatically in case the
charge voltage is missing.