Operation; Checking Instruments; Cruising Speed - Volvo Penta D2 Series Operator's Manual

Operation

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.
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Checking instruments

Check the instruments and warning display directly
after starting the engine and then at regular intervals
while driving the boat. Stop the engine if there is an
abnormal reading or any warning lamp comes on and
the alarm sounds. For engines with measuring instru-
ments the following standard values apply:

Cruising speed

Operating the engine at wide open throttle (WOT)
should be avoided since it is both uneconomical and
uncomfortable. Volvo Penta recommends a cruising
speed in the range 500–000 rpm lower than maxi-
mum rpm at WOT. Depending on hull type, choice
of propeller, load and conditions etc. the maximum
engine speed at top speed can vary, but it should be
within the WOT range.
Wide Open Throttle range: ............. ,700–3,000 rpm