General; Certification; Construction Of A Terhi Boat; Basic Information About Abs Plastic - Terhi Tender Eignerhandbuch

The warnings and notes contained in this manual are
specified as follows:
WARNING! Must be observed to avoid personal injury.
NOTE! Must be observed to avoid damage to the boat
or its parts.

1.1 Certification

The Terhi boats have been inspected and certified
according to the EU directive 2013/53/EU on recrea-
tional craft and personal watercraft. The CE-marking
has been stamped onto the manufacturer's type plate.
All Terhi boats are certified for either for Category C or
D (see chapter 6.1 Design Categories).
WARNING! Always consider your own driving skill,
your speed and direction, if you have to set off into
conditions exceeding the design specifications of your
boat.

1.2 Construction of a Terhi boat

The durability and safety of a Terhi boat is based on an
extremely rigid and strong sandwich construction. The
shells are moulded from ABS plastic sheets. The space
between the shells is filled with closed-cell, water-
resistant polyurethane foam. The foam firmly adheres
to both shells in a foam press with a pressure of over
30,000 kg/m². Thanks to its construction, it is impos-
sible to sink a Terhi boat, even by cutting it into pieces.

1.3 Basic information about ABS plastic

ABS is an acronym for acrylonitrine, butadiene and
styrene, its three constituents. The most suitable and
durable ABS qualities, and the special plastics used as
coatings, have been selected on the basis of research
carried out in co-operation with the Technical Research
Centre of Finland. These plastics are characterised by
their high impact strength. Thanks to this strength,
ABS plastic is flexible and will not easily fracture in
such as situations as running aground. The ABS plastic
used is also UV-protected.
ABS does not absorb water, so there is no need to
worry about scratches made by stones on the shore.
Osmosis damage (blistering) cannot occur on an ABS
boat. The properties of all thermoplastics vary to some
degree depending on the ambient temperature. The
Terhi – Owner's manual

1 General

high impact resistance of ABS may be adversely af-
fected by severe frost, but it is unlikely that you would
set to sea in such conditions. This fact must, however,
be remembered if you are intending to move your boat
in winter.
Another notable feature of thermoplastics is that
their shape might become deformed under prolonged
pressure on a small area. If, for example, you leave your
boat in the sun, in such a way that most of its weight is
resting on a small stone, an indentation may appear at
that point after a few weeks. This fact must be borne
in mind if you are storing your boat on a shore cart,
trailer or winter storage trestles and when you are
transporting it. A half-metre long piece of board is suf-
ficient to distribute the point loads.
NOTE! The use of floor mats as anti-slip or floor pro-
tection is forbidden, as they can damage the sandwich
construction of the boat when they warm up in the
sun.
1.4 Warranty
The Terhi boat has been granted a four-year guarantee
from the date of delivery, and concerns raw materials
and manufacturing flaws. The warranty terms have
been enclosed in this owner's manual. Pay attention
to the warranty terms. The prerequisite for the guar-
antee is that the warranty card has been filled out in
full together with the reseller at the time of purchase.
Carefully store the buyer's section of the warranty
card. Potential warranty issued should at firsthand be
addressed with the reseller.

1.5 Insurance

Boat insurance may compensate for damage caused in
the water, when transporting or storing. In some coun-
tries under certain circumstances, small boats may be
covered by home insurance. More detailed information
about different insurance options is available from in-
surance companies.

1.6 Registration

In accordance with boating regulations in many coun-
tries, boats powered by an outboard motor exceeding
15 kW (20 hp) may need to be registered before use.
Registration can normally be done by post. Detailed
instructions on registration and its requirements can
5