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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. Terhi boats conform to the stand-
ards set in sections 1 and 2 of the Finnish Boating
Regulations 152/69.
1.1 Certification
Terhi boats are inspected and certified according to
the EU Recreational Craft Directive 94/25/EC. The
CE mark is printed on the manufacturer's plate,
attached to the side of the engine well. 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 specifica-
tions 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 con-
struction. The shells are moulded from ABS plas-
tic 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 impossible 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 suit-
able 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 im-
pact 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.
Terhi - Owner's manual
1 General
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 thermoplas-
tics vary to some degree depending on the am-
bient temperature. The high impact resistance of
ABS may be adversely affected by severe frost, but
it is unlikely that you would set to sea in such con-
ditions. 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 exam-
ple, 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 trans-
porting 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
protection is forbidden, as they can damage the
sandwich construction of the boat when they
warm up in the sun.
1,4 Warranty
A four-year warranty, effective from the date of
sale is valid for raw material and manufacturing
defects on Terhi boats. The warranty conditions
approved by the manufacturer can be found on
the warranty certificate delivered with this man-
ual. Read these conditions carefully. A condition
of the warranty is that the warranty certificate is
returned filled out in accordance with the manu-
facturer's warranty conditions. Keep the purchas-
er's part of the warranty certificate in a safe place.
Please consult your dealer in any possible matters
related to warranty.
1.5 Insurance
Boat insurance may compensate for damage
caused in the water, when transporting or stor-
ing. In some countries under certain circumstances,
small boats may be covered by home insurance.
4
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