Volvo Penta 5.7 Gil-B Operator'S Manual Download

Page: 8 / 70

Introduction

“Wagon-Back” Effect

As long as we continue to use combustion technology for
engines, there will be exhaust emissions. Despite the
substantial reductions achieved in modern engines, as fuel
burns exhaust emissions and fumes will always be given
off.

But there is also another effect. Any shear-bodied object
moving forward will create a phenomenon we call
“wagon-back effect.” Due to a difference in air pressure,
the airflow behind such an object will have a tendency to
draw dirt and exhaust emissions back into the object.
(You’ll frequently see evidence of this in the excess of road
grime that is drawn back onto the rear windows of cars
and trucks.) A boat with a sheer, broad transom and high
superstructure creates its own wagon-back effect. This
recirculating air has a tendency to draw exhaust fumes
and water spray up toward the afterdeck. Often people will
make the mistake of opening a ventilator or port hole in
order to remove the fumes, but it has the opposite effect —
more fumes are drawn in, and conditions merely become
worse. In high concentrations these fumes may be hazard-
ous. If you suspect that your boat exhibits this “wagon-
back” effect. Please contact your Volvo Penta dealer.

Your New boat

Every new boat has it’s own special characteristics. Even
experienced boat owners should note carefully how a boat
behaves at different speeds, weather conditions, and
loads. Your boat owner’s manual contains information to
help you operate it with safety and pleasure. It contains
details of the boat, equipment supplied or fitted, systems,
and information on operation and maintenance. Please
read it carefully, and familiarize yourself with your boat
before using it for the first time.

We strongly recommend that you install an emergency
stop switch, regardless of the type of boat. If your boat
does not have an emergency stop switch, contact your
Volvo Penta dealer, who can assist you in selecting one.

Boater’s Responsibilities

The operation, maintenance, and care of the Volvo Penta
engine and power package as outlined in the owner’s
manual are the owner’s responsibility. (See the

Mainte-

nance Schedule.) The owner/operator must keep records
of all maintenance services performed. This record of
proper maintenance may be required to determine war-
ranty coverage on certain repairs and should be trans-
ferred to each subsequent owner. If you are not sure of the
proper maintenance procedures, contact the Volvo Penta
Consumer Affairs Department at the address found
elsewhere in this manual.

The operator is responsible for the correct operation of the
boat and for the safety of all passengers. Make sure that
all operators read this manual before operating the boat.
Show your passengers the location of emergency equip-
ment and explain how to use it. Be sure one of your
passengers knows how to handle your boat in case of
emergency.

Requirements for personal flotation devices (life vests, life
preservers) and other safety equipment vary, depending
on the type of boat and local regulations. Always comply
with the regulations that apply to your boat.

Planning Your Trip

Everyone wants to have a problem-free and pleasant time
when they take their boat out. To help you do this we have
provided a pre-journey checklist below. Take extra time to
check the engine and its equipment and the general
maintenance of the boat.

Get up-to-date charts for the planned route.

Calculate distance and fuel consumption.

Note places where you can refuel along your
planned course.

Tell friends or relatives about your route (that is,
file a “float plan”).

21170