Operation; Cruising Speed; Maneuvering - Volvo Penta 22 Series Instruction Book

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 engaging
ahead or astern. Never drive near bathers or in areas where people could be in the water.
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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 300 - 500 rpm lower than
maximum 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 (WOT) range:
MD22L ............ 2,700-3,000 rpm
MD22P ........... 3,500-4,000 rpm
If the engine does reach the wide open throttle range it may be due to
one of the reasons covered in the chapter: Fault-tracing. If the engine
speed exceeds wide open throttle range a propeller with a higher pitch
should be selected. Ask your Volvo Penta service dealer for advice.

Maneuvering

All shifting between ahead and astern must be done at engine idle
speed. Shifting at higher speeds may damage the drive or reverse gear
and will also be uncomfortable for those on board. There is a risk that
someone aboard will fall over or overboard.
1. Reduce engine speed to idling and, if possible, let the boat lose
most of its speed.
2. Move the reverse gear control lever quickly and firmly into the
neutral position. Wait for a moment.
3. Move the gear control lever quickly and firmly into astern, then
increase the speed.
IMPORTANT! Never change to reverse when the boat is planing,
there is a risk of water penetrating the engine via the exhaust
outlet. If the boat has two engines, it is important that they are
both running during maneuvers astern (rearward movement),
otherwise water might get into the exhaust of the engine which is
not running.
TMD22 ............ 3,500-4,500 rpm
TAMD22P ....... 3,500-4,500 rpm