Terhi Terhi Sunny User manual

Omistajan käsikirja – Ägarens handbok
Owner’s manual – Eignerhandbuch
Manuel de properiétaire - Gebruiksaanwijzing
TERHITEC OY - 21140 RYMÄTTYLÄ
TEL [phone]
TERHI.FI
SUOMI SVENSKA ENGLISH DEUTSCH FRANÇAIS NEDERLANDS
Käyttö- ja
huolto-ohjeet
Bruks- och
serviceanvisningar
Instructions for use
and maintenance
Gerauchs- und
pflege-anweisungen
Le manuel
d’instructions
Onderhouds- en
gebruiksaanwijzing
TERHI ABS BOATS Omistajan käsikirja – Ägarens handbok – Owner’s manual – Eignerhandbuch – Manuel de properiétaire – Gebruiksaanwijzing 11/2017

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Introduction
This owner’s manual has been compiled for you as the new
owner of a Terhi ABS boat. We thank you for your choice, and
we hope that your boat will meet with your expectations.
This 12-page manual has been prepared to assist you in the
safe and problem-free use of your boat. It contains informa-
tion on the use and care of your boat. We urge you to read
the manual carefully and fully acquaint yourself with your
boat before you start to use it.
If this is your first boat, or you are changing to a type of boat
that is not as familiar to you as your previous one, begin by
acquiring handling and operating experience in conditions
that are as safe as possible, before launching and taking re-
sponsibility for passengers.
KEEP THIS MANUAL IN A SAFE PLACE, AND GIVE IT TO
THE NEXT OWNER IF YOU SELL THE BOAT.

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Contents
Introduction.................................................................................................1
Contents ........................................................................................................2
Before you set out.................................................................................3
Prevailing weather conditions and weather forecast..3
Bailing..............................................................................................................3
Drain plugs....................................................................................................3
Load Capacity.............................................................................................3
Fuel 3
Engine and other equipment..........................................................3
The minimum onboard equipment .............................................3
Securing of gear.......................................................................................3
Charts...............................................................................................................3
Setting out...................................................................................................3
1 General .......................................................................................................4
1.1 Certification .......................................................................................4
1.2 Construction of a Terhi boat..................................................4
1.3 Basic information about ABS plastic...............................4
1,4 Warranty ...............................................................................................4
1.5 Insurance..............................................................................................4
1.6 Registration........................................................................................4
1.7 Manufacturer’s type plate.......................................................4
2 Using the boat .....................................................................................5
2.1 Mooring and anchoring..............................................................5
2.2 On-shore storage...........................................................................5
2.3 Installation of steering console and rails .....................5
2.4 Fire extinguisher.............................................................................5
2.5 Driving ....................................................................................................5
2.6 Engine.....................................................................................................6
2.7 Emergency switch.........................................................................6
2.8 Refuelling.............................................................................................6
2.9 A Bilge pump......................................................................................6
2.10 Retro-fitting...................................................................................6
2.11 Prevention from falling overboard and how to
re-embark the boat.....................................................................7
3 Electrical system.................................................................................8
3.1 Main switch ........................................................................................8
3.2 Battery hook-up and placement.........................................8
3.3 Control panel.....................................................................................8
3.4 Wiring diagrams...............................................................................9
3.5 Fuses................................................................................................... 10
3.6 Navigation lights........................................................................10
4 Maintenance and winter storage .......................................11
4.1 Washing and cleaning.............................................................11
4.2 Winter storage..............................................................................11
4.3 Engine and other equipment.............................................11
4.4 Anti-fouling....................................................................................12
4.5 Care and maintenance............................................................ 12
4.6 Repairs ...............................................................................................12
5 Transport..............................................................................................13
5.1 Trailer transport ..........................................................................13
5.2 Using your boat for towing................................................ 13
5.3 Launching & Recovery............................................................13
6 Technical specifications ............................................................ 14
6.1 General set-up, dimensions and capacities,
design categories..................................................................... 14
7 Declaration of conformity........................................................16
8 Terms of warranty ......................................................................... 17

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Read through this manual. Tell your family and/or
friends where you are going. Also let them know if you
change your plans! Before setting out, always check
the following:
Prevailing weather conditions and weather
forecast
Take wind, waves and visibility into account. Is the boat
size, its equipment and your level of skill sucient for
the body of water onto which you are heading?
Bailing
If necessary, empty the boat of rain water with a bailer
or a hand pump, not by tipping the boat. Tipping causes
unnecessary strain on the boat’s gunwales. When the
boat is ashore you may also open the drain plug. It is
the responsibility of the owner/operator to have at
least one bailer/draw bucket on board, as a security
measure against unexpected emergency situations.
Rainwater drainage
Rainwater drainage (for Terhi boats) means that the
boat does not fill up with water and that it continues
to float even though the bottom drain plug is opened.
Regardless of the amount of rain water the water level
inside the boat always stays the same and is relative
to the sea level outside the boat. This means that you
can leave the empty boat floating in the harbor with
the bottom drain plug unplugged, letting the rainwater
drain out.
NOTE! Always remember to close the bottom drain
plug when embarking the boat or as you load the boat.
Ensure that the drainage functions properly by keeping
the bushing free from leaves and other debris. Depen-
ding on the boat’s load/load distribution the boat may
not fully drain from rainwater even when the bottom
drain plug is opened. If the boat’s deck is partly filled
with rainwater during a longer period of time, the
deck is easiest to clean right after the water has been
drained (see 4.1).
Drain and drawing plugs
Before setting out, always remember to check that the
bottom drain plug is properly in place and closed.
Terhi 475 and 445 have in addition been fitted with
drawing plugs for bilge water tapping. In the 475 mod-
els the bilge water drawing plug can be found under
the plastic cover found In the fuel tank space. In the
445 models the drawing plug is situated under the
circular inspection hatch on the interior deck in front
of the stern bench. In both models the bilge water can
be removed via these drawing plugs, but only when
the boat is docked up on dry land. Always keep this
bilge water drawing plug closed when the boat is in
the water.
Load Capacity
Observe the recommendations on the manufacturer’s
plate: do not overload the boat, distribute loads evenly,
and ensure that all passengers are wearing life jackets.
Always remain seated in the boat!
Risk for boat capsizing
The Terhi Sunny, Terhi 385, Terhi 440, Terhi Saiman
and Terhi 445/445C (in design category D, 7 persons)
boat models have limited stability and are therefore at
greater risk of capsize or swamping. Users should take
special care to keep the boat upright by adjusting the
position of the passengers and the load in the boat.
The following safety sign warns of this hazard.
Fuel
Check that the boat has a sucient amount of fuel
for the anticipated trip. Take with you reserve fuel for
adverse weather conditions or other unforeseeable
circumstances.
Engine and other equipment
Check the operation of the steering and electrical
equipment and inspect the engine on a daily basis. Fur-
ther instructions can be found in the separate engine
manual. Regularly also check the boat’s seaworthiness,
ensuring that there are no faults such as fuel or water
leaks.
The minimum onboard equipment should
include:
- a life jacket for each passenger
- a bailing device: pump or bailer
- oars or a paddle
- anchor and rope
- navigation lights for night boating
- for registered boats, equipment required by regis-
tration such as a fire extinguisher.
Securing of gear
Check that all objects on board are stowed in such a
way that they remain secure even in rough seas and
high wind. Keep your boat in good order.
Sea charts
Unless you are boating in a very familiar area, check
that you are carrying charts covering the entire area
into which you area heading.
Setting out
Before departure, inform each crew member of their
specific task, including who detaches the mooring lines
and when. Check that the mooring lines and other lines
do not get tangled in the propeller during departure
or mooring.
Before you set out

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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.
1.1 Certification
The Terhi boats have been inspected and certified ac-
cording to the EU directive 2013/53/EU on recreational
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 o 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-resist-
ant 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 sty-
rene, its three constituents. The most suitable and dura-
ble ABS qualities, and the special plastics used as coat-
ings, 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. Os-
mosis damage (blistering) cannot occur on an ABS boat.
The properties of all thermoplastics vary to some degree
depending on the ambient temperature. The high impact
resistance of ABS may be adversely aected 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 sucient 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 war-
ranty terms. The prerequisite for the guarantee 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 dierent insurance options is available from insur-
ance companies.
1.6 Registration
In accordance with boating regulations in many countries,
boats powered by an outboard motor exceeding 15kW
(20 hp) may need to be registered before use. Registra-
tion can normally be done by post. Detailed instructions
on registration and its requirements can be obtained from
your local administrative court. Often a registered boat
may only be driven by persons over the age of 15.
In some countries, it is mandatory for even small boats
to be registered. Check with the local authorities in your
country of residence for the statutory regulations con-
cerning boat registration.
1.7 Manufacturer’s type plate
Some of the technical specifications can be found on the
manufacturer’s type plate, which has been attached to
the boat. Supplementary information are found in this
handbook, under the ‘Techincal information’ sections.
1 General

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2 Using the boat
2.1 Mooring and anchoring
Always moor your boat with care even in sheltered an-
chorages, as weather conditions can change rapidly. The
cockpit of an unloaded Terhi boat is designed to drain
rainwater. So, when unloaded, the boat can be left to
float without its drain plug fitted, allowing rainwater to
flow out.
NOTE! Remember to replace the drain plug when you
step into the boat or load it. Ensure that the drain plug
hole is free from foreign objects such as leaves. Depend-
ing on the weight of the engine and any other equipment
in the boat, water may not necessery completely drain out
of the boat when the plug is open. If water has remained
in the boat for a long period, it is advisable to clean the
surfaces immediately after draining (see section 4.1).
NOTE! Where necessary, use suciently large fenders
to prevent scratching the sides of the boat. The mooring
lines should be fitted with dampers/springs to suppress
jerks.
2.2 On-shore storage
If the boat is stored on a stony beach, we recommend
the use of a roller slipway or hose slipway, as shown
in figure 1.
Figure 1
If the shore is soft sandy or muddy soil, you can simply
pull your boat directly onto the land. Remember to lock
the engine in the ‘up’ position before bringing the boat
ashore.
WARNING! Do not try to stop the boat by hand. Do
not put your hands or feet between the boat and the
quay, the shore or another boat. First practice berthing
in good weather conditions. Use prudent but purpose-
ful engine throttle.
NOTE! The water run-o channels around the boat’s
hatches do not function as designed if the boat is
stored at a steep angle, either lengthways or sideways,
for example, when pulled to the shore. If the angle is
too steep, water can collect in the boat’s storage spac-
es or electrical equipment.
2.3 Installation of steering console and rails
Installation instructions for the steering console and
rails are included in each package. By observing these
instructions, you will achieve the best results. The
steering wheel and system must be CE-certified. This
can only be guaranteed if original Terhi parts are used.
Always consult your dealer if you are inexperienced in
installing items.
2.4 Fire extinguisher
Boats with a maximum allowable engine power of
26 kW (35 hp) or more must be equipped with a fire
extinguisher. For Terhi boats, this applies to the Terhi
475 models. Fire extinguishers fitted on boats must
be serviced annually. Read the user and maintenance
instructions that are supplied with the device. The fire
extinguisher has been placed either inside the port
side steering console, or under the seat/bench in the
bow.
2.5 Driving
The trim angle of a boat has a significant eect on
driving characteristics and fuel consumption. The trim
angle can be adjusted by load re-distribution and ad-
justing engine trim angle.
A correct trim angle in conjunction with a suitable
speed makes driving enjoyable and safe, even in a
swell.
WARNING! High speed and sudden steering move-
ments, especially in high seas, may result in loss of
control of the boat and excessive heeling angles. Al-
ways consider your own driving skill, your speed and
direction, if you have to set o into conditions exceed-
ing the design specifications of your boat.
WARNING! Observe the recommendations on the
manufacturer’s plate concerning the maximum permit-
ted number of passengers and maximum load.

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WARNING! At high speeds, adjust the engine trim angle
with care, as it will greatly change the behaviour of the
boat. Do not drive with the bow too low, otherwise the
boat might turn unexpectedly.
Water will drain from all planing Terhi models, when
the drain plug is opened during planing.
WARNING! Close the plug as soon as the boat is empty
of water, otherwise water will flow back into the boat
when you reduce speed. In the boat, be careful when
moving on surfaces not covered with anti-slip tapes.
2.6 Engine
If your boat is equipped with an engine, familiarise
yourself with its operation by reading the engine
manual. When installing the engine, please observe
the instructions supplied by the engine manufacturer
and your Terhi dealer. If your boat is to be left idle for
a longer period of time, switch o the power from the
main switch, if your boat has one.
WARNING! Observe the recommendations on the
manufacturer’s plate concerning the maximum motor
power and weight.
NOTE! Do not use the main switch to cut the electric
current when the engine is running, as this may dam-
age the charger.
2.7 Emergency switch
All the newest models of outboard motor have an
emergency switch. Check the location of the emergen-
cy switch and read the user instructions in the engine
manual. The switch is usually used with a cotter-type
coupler and a lanyard. Carefully attach one end of the
lanyard to your wrist or clothing, and the other end to
the engine’s emergency switch.
WARNING! A spinning propeller can be fatal for a
man overboard or swimmer. Stop the engine when-
ever a swimmer or water-skier is getting into the boat.
When you are boating alone, it is especially important
that the boat will stop if you fall overboard or trip over
in the boat. Under such circumstances, use the emer-
gency switch if your engine has one.
2.8 Refuelling
It is best to refuel at the quay or on shore to prevent
fuel from spilling into the boat. Fuel and oil splashes
must be wiped immediately from the surfaces of the
boat. Hazardous materials and objects (e.g. sparking
devices or flares) must not be stored in the tank stor-
age compartment.
WARNING! Before you start refuelling, stop the en-
gine.
2.9 Bilge pump
The bilge pump is fitted as standard on Terhi 475, 445
C and Nordic 6020 C Models. In Terhi 475 the pump is
located in the bilge under the reat seat, in Terhi Nordic
6020 C in the draining well in front of the rear seat and
in Terhi 445 C it is under the boat’s plywood floor. The
switch is on the control panel of the steering console.
NOTE! Check the operation of the bilge pump at regu-
lar intervals. Clean the pump’s suction holes of foreign
objects.
WARNING! The bilge pump is not designed to cope
with leaks caused by running aground or other acci-
dents.
2.10 Retro-fitting
In order to attach Terhi’s own accessories, the sand-
wich construction comprises plywood support pieces
under the shell in the attachment points. If you wish
to fit other accessories, please observe the following
instructions: Drill a hole in the shell (e.g. an Ø2mm hole
for an Ø4.8mm screw) and wipe the surfaces. Add MS
Polymer sealing adhesive on the piece and fasten it
with acid proof screws. Do not over-tighten.
NOTE! The method described above is only suitable
for attaching light-weight components, such as a log
or depth finder. In order to facilitate the drawing of the
cables from the engine to the steering console, there
are two drawstrings in the installation tube.

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1.
3.
2.
4.
2.11 Prevention from falling overboard and
how to re-embark the boat
When the boat is in motion it is safest to sit on the
designated seating places. If you for any reason fall
overboard, the easiest way to re-embark the boat
(Terhi 475 BR, 475 Twin C, Nordic 6200 and 445) is
via the swimming ladder in the aft. In case you are
traveling by rowboat, re-embarking is done over the
side of the boat (see picture series below).

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3 Electrical system
3.1 Main switch
A main electrical isolator switch is standard on Terhi
Nordic 6020 C (with steering console) and Terhi 445
C and 475 models. On the 445 C and 475 the main
switch is located under the rear seat. The Terhi Nor-
dic 6020 C boat has its main switch on the steering
console.
The electrical system of Terhi boats is switched on
when the key is turned in a clockwise direction and
locked in position. The key is then in an upright posi-
tion.
When leaving your boat idle for a longer period, use
the main switch to cut the electric current. Also switch
o the current when carrying out electrical work.
If the main switch is retro-fitted, it should be placed
in an accessible location as close to the battery as is
practically possible.
Do not modify the boat’s electrical system or its
drawings. Modifications and servicing should be left to
a skilled professional in boat electrical systems.
WARNING! Never use the main switch to cut the cur-
rent when the engine is running.
3.2 Battery hook-up and placement
Battery placement on Terhi boats are as follows:
Terhi 400 and Terhi 445
- Under rear seat (in battery housing or fitted with
terminal protectors)
Terhi Nordic 6020 C
- In the steering console.
Terhi Nordic 6020 (without steering console):
- Under the rear seat in a space reserved for the bat-
tery
Terhi 475 BR/Twin C:
- In the co-driver’s console.
The battery must be mounted securely in the boat.
This is best achieved using a fastening strap, which is
fixed by screws or pop rivets to the base of the battery
space. If the battery is located in the same space as the
fuel tank, it must be fitted either with battery hous-
ing or terminal protectors. Ensure that no electrically
conductive items come into contact with the battery’s
positive terminal. The mountings of the cable lugs
must not be dependent on spring tension.
WARNING! Charge the battery only using the engine
or a battery charger. Charging at an excessive current
causes a risk of explosion.
3.3 Control panel
The Terhi Nordic 6020 C, Terhi 445 C and Terhi 475 are
all equipped with a control panel as standard (figures
2,3 and 4).
Figure 3. Nordic 6020 C control panel
Figure 4. Terhi 445 C and 475 Twin C control panel
Figure. 2. 475 BR control panel

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3.4 Wiring diagrams
Figure 5. Terhi 475 Twin C and Terhi 445 C wiring diagram
Figure 6. Terhi Nordic 6020 C wiring diagram












 









 





Figure 7. Terhi 475 BR wiring diagram

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3.5 Fuses
The electricity circuit fuses have been placed inside
the steering console of the Nordic 6020 C. In Terhi
445 C and 475 the fuses are located under the rear
seat. The above mentioned models have 7,5 A flat
fuses with the exception of Terhi 445 C and 475,
where automatic fuses of 10A and 15A are used.
When changing fuses, do not install one for a higher
current or put components into the electrical system
with a nominal ampere reading exceeding that of the
electrical circuit.
3.6 Navigation lights
The following Terhi boats have a readiness for naviga-
tion lights (sockets pre-installed): Terhi Nordic 6020 C
Terhi 445 C and Terhi 475.
NOTE! In boats not equipped with a separate switch
for navigation lights (400, 445 and Nordic 6020), a
fuse and switch should be installed before starting to
use the system. Power should be turned o whenever
the lights are not in use. The set of navigation lights,
available as an accessory, is CE-compliant.

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Take your Terhi boat out of the water in good time before
there is any chance that the water will freeze. Your boat is
not designed for use in ice-covered waters.
4.1 Washing and cleaning
Keep your boat clean and tidy. This enhances comfort
and safety and increases the boats re-sale value. The
fuel consumption of a motor boat is significantly af-
fected by the cleanliness of the hull and engine parts
beneath the surface of the water. Usually the use of
ordinary household detergents and boat-wax is su-
cient for taking care of the inner shell and sides of an
ABS boat. The removal of abrasions and dicult stains
can be done using a fine polish. If the boat has been
kept in the water, wash the hull as soon as it has been
lifted out. Algae and slime are more easily removed
if they are not allowed to dry. You can use a brush or
wooden or plastic scraper to ease the work, but avoid
the use of a scratching metal scraper.
NOTE! Do not clean with acetone, thinner, petrol, ke-
tone or other strong solvents, as they may damage the
plastic surface.
4.2 Winter storage
The best place to store a Terhi boat in winter is in a shed
or under a roof. The best storage position for a rowing
boat is upside-down, resting on trestles (figure 8). If the
Terhi Saiman is stored upside-down, it should also be
supported from the inside, at the keel in the direction
of the keel line.
For planing and console boats stored on trestles or
a trailer, ensure that the boat’s weight is evenly distrib-
uted on its supports. Support surfaces must be wide
– for example a board lying flat is well-suited to the
purpose. When storing the boat on a trailer, the fas-
tening straps must be loosened. If the engine is still
mounted, its weight must be supported. During the pe-
riod of storage, heavy loose items such as the battery
and fuel tank should be removed.
The Terhi 475 and 445 models have also been fit-
ted with a rain water drain plug. In the 475-models the
blug is found under the plastic cover in the fuel tank
compartment. Bilge water can be drained out here
when the boat is dry-docked. Leave the plug open dur-
ing storage, so that any condensation water can drain
away. Always keep this plug closed when the boat is
in the water.
If stored outdoors, cover the boat with a non-
transparent tarpaulin. Ensure, however, that the boat
has sucient ventilation. When storing outdoors, make
sure that an excessive amount of snow cannot accu-
mulate on top of it. Storing a Terhi boat on its side is
not recommended.
NOTE! The tarpaulin and its fastening ropes will chafe
the surface of the boat if they flap and move in the
wind, so fasten them with care.
4.3 Engine and other equipment
Study the engine manual for instructions on winter
storage and servicing and the spring overhaul. Have
them done by a qualified service engineer or, if you do
it yourself, take the utmost care over the task. Other
equipment requiring regular servicing includes:
- steering and engine control equipment
- navigation lights
- covers
- battery
Figure 8.
4 Maintenance and winter storage

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Remove the batteries during winter storage, store
them in a cool dry place and charge them at least twice
during the winter. Spray electrical connections with
suitable anti-moisture and anti-corrosion substances.
Carry out servicing on other equipment according to
their manuals and instructions.
4.4 Anti-fouling
If the boat is used mostly in the sea, vegetation can
be prevented from sticking to the bottom hull by using
anti-fouling paints. All light-toned, hard anti-fouling
paints are suited for anti-fouling of the Terhis. Care-
fully follow the paint manufacturer’s instructions. The
water line dimensions for anti-fouling can be found on
the TerhiTec homepage (www.terhi.fi).
4.5 Care and maintenance
Repair, or have repaired, any possible scratches or
dents, according to section 4.6. Small surface scratches
can be ignored as they do not adversely aect the in-
tegrity of the boat. Washing and waxing, as described
in section 4.1 will help to keep the boat clean and neat
throughout the boating season.
Soiling of the hull and, in particular, the propeller sig-
nificantly increases fuel consumption, so it also pays to
keep them clean throughout the boating season.
4.6 Repairs
For repairs covered by warranty, please see instruc-
tions in section 1.4. For faults in the engine or other
equipment, refer to the respective suppliers. The ABS
shells of Terhi boats can withstand hard knocks. If,
however, your boat suers damage, it can easily be
repaired with Terhi Fix repair compound, which is avail-
able from your Terhi dealer. Instructions for use of the
compound are provided in the packet. Instructions
for repair can also be found at TerhiTec Oy’s website
(www.terhi.fi).
NOTE! If incorrectly done, retro-fitting and modifica-
tion work can cause damage to the structure of the
boat or endanger safety. Contact the manufacturer or
dealer before commencing any significant modification
work, such as drainings or larger surface fastenings.
NOTE! Always check the condition of your boat im-
mediately after a collision. If the inner or outer shell of
your boat has incurred damage that has penetrated the
plastic layer, it must be dealt with immediately. Water
penetrating through the inner or outer shell can dam-
age the structure of the boat.

ENGLISH
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5 Transport
Smaller Terhi boats can be transported by car on a
sturdy roof rack. Larger models should be transported
on a purpose-built boat trailer.
5.1 Trailer transport
You can easily transport your Terhi boat on a trailer.
Make sure, however, that the trailer is compatible with
your boat. Check that the load capacity of the trailer
is sucient for your boat, its engine and other equip-
ment. Terhi boats are very light for their length so
ensure that your trailer is suciently long to accom-
modate your boat. It should have an adequate number
of keel supports, and load bearing supports and all
these supporting points must have a suciently large
surface area, so that point loads do not become exces-
sive. This is especially important on small roller trailers
where there are few rollers as standard.
In transit, the engine should be in normal driving
position and the steering friction should be firmly set
(tiller models). However, make sure there is enough
space left to the ground. If there is a risk that the en-
gine might hit the ground while in transit, the engine
should be tilted up and supported with a separate sup-
port beam or detached from the boat.
WARNING! Do not transport the engine attached to
the boat when the engine is tilted up without having
secured it with a support beam. The engine or the boat
can be damaged, or in worst case the engine can fall o.
Check that the seat hatches are locked with their
security clips in place. Do not leave loose items or ex-
cessive loads in the boat during transportation.
Fasten the boat securely to the trailer, before commenc-
ing the actual journey but take care not to over-tighte n
the fastening straps. The bow strap should point forwards
and downwards (the winch strap on its own is insucient
for securing) and swaying of the stern can be prevented by
tying a strap across the boat. To prevent the straps from
marking the boat use a soft material between the strap and
the hull. Adjust the trailer side supports or bunks, so that
the boat cannot move sideways. Clean all the supports of
sand and dirt, to prevent them scratching the hull.
Finally, check that the trailer is properly locked to the
trailer hook! Always loosen the fastening strap imme-
diately after transportation and when leaving the boat
stored on the trailer.
NOTE! The trailer’s centre of gravity must be toward the
front. Make sure that the boat is securely attached to the
trailer. A swaying boat may strike a single support point,
damaging the hull. The trailer’s keel supports should carry
most of the weight of the boat.
5.2 Using your boat for towing
When towing another boat, a buoyant rope of sucient
strength should be used. Start the tow carefully and
avoid jerking movements. Do not overload the engine.
When towing a rowing boat, remember that it is de-
signed for slow speeds only. It is not suitable for fast
towing, as it will not plane.
WARNING! The towing rope is highly tensioned when
towing. If it breaks, the end of the rope can reach dan-
gerously high speeds. Always use a thick enough rope,
and avoid being in the vicinity of the end of the rope.
It is the owner’s/operator’s responsibility to ensure that
mooring lines, towing lines, anchor chain(s), anchor lines
and anchor(s) are adequate for the vessel’s intended
use, and that the lines or chains do not exceed 80 %
of the breaking strength of the respective strong point.
The wear of the lines and the weakening of the breaking
strength due to knots/nodes should however be taken
into account.
Places for fastening of lines during towing, anchoring
and mooring:
In boats where there are no cleats, the loops found in
the stern and bow can be used as points for fastening
mooring/anchorage lines.
5.3 Launching & Recovery
When launching and recovering your Terhi boat on to its trail-
er ensure that the boat is empty of water and luggage. Winch
it carefully on to the trailer avoiding excessive strain on the
bow eye. Make sure the trailers rollers and supports do not
hit the angled scupper plate that covers the drain hole as the
boat is winched on. Always release the tension on the winch
strap once the bow is resting on the rubber bump stop. Never
winch your boat on to the trailer with people in the boat.
The strengths for the fastening points have been noted in
the technical specifications.
Figure 9.

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ENGLISH
Terhi boats have consecutive serial numbers, a CIN
(Craft Identification Number) code etched into the right
side of the stern under the fender list. You will need
this number when you insure, register or sell the boat.
Referring to this serial number helps with the delivery
of correct spare parts and accessories. Check that the
serial number on the warranty certificate corresponds
to that on the boat. Fill in the boat and motor details in
the boxes below for future reference.
6.1 General set-up, dimensions and capacities,
design categories
Boat model:
Boat serial number (CIN code):
Engine model:
Engine serial number:
6 Technical specifications
Design categories:
Category C This boat is designed for use in condi-
tions, in which the wind speed does not exceed 6 on
the Beaufort scale (approx. 14 m/s) and the swell is in
proportion to that (significant wave height does not
exceed 2m, see note below). Such conditions can be
found in open lakes, river estuaries and coastal waters
in moderate weather conditions.
Category D: This boat is designed for use in condi-
tions, in which the wind speed does not exceed 4 on
the Beaufort scale (approx. 8 m/s) and the swell is in
proportion to that (meaning a wave height of max. 0.3
m, with occasional waves reaching a height of 0.5m).
Such conditions can be found in sheltered inland wa-
ters and coastal waters in good weather conditions.
Significant wave height is the average height (trough
to crest) of the highest 33% of waves over an indi-
cated 12 hour period, which roughly corresponds to the
height estimated by an experienced observer. Some in-
dividual waves can be twice as high as this.

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Model Baby
Fun Sunny 385 400 400 C 440 Saiman Saiman
Solar 445 445 C Nordic
6020 Nordic
6020 C 475
Twin C 475 BR
General set-up and seats based on the greatest passenger load Length (cm) 235 310 380 401 401 440 478 478 445 445 462 462 475 475 Width (cm) 130 147 150 150 150 175 148 148 185 185 187 187 185 185 Weight without engine (kg) 55 75 98 120 130 150 105 105 260 280 225 255 370 390 Passengers 2 3 4 4 4 4 4 4 C cat. 5 /
D cat. 7
C cat.5 / D
cat. 7 5 5 5 5
Max. load (kg) (people + fuel) 175 240 315 315 315 315 315 315
C cat.
440/ D
cat. 540
C cat.
440/ D
cat. 540
440 440 440 440
Maximum Draught (m) 0,20 0,26 0,26 0,23 0,23 0,26 0,22 0,22 0,29 0,29 0,28 0,28 0,30 0,30 Freeboard without load (min) 0,35 0,34 0,39 0,27 0,27 0,34 0,31 0,29 0,51 0,50 0,62 0,61 0,55 0,55 Max (kW/hv) 2,3/3 3,7/5 4,5/6 11,2/15 11,2/15 7,5/10 3,8/5 electricity 22,4/30 22,4/30 22,4/30 22,4/30 45/60 45/60 Recommended engine power (hp) 2 4 2-4 6-10 6-10 4-6 2-4 2-4 15-20 20-30 10-15 20-30 50 50
Max. recommended engine
weight (kg) 25 27 27 65 65 50 27 27 100 100 100 100 115 115 Mass displacement with full load MLDC (kg) 371 469 595 595 550 488 488 850 850 861 861 990 990 Max. speed with 2 persons (hp/Kn) 2/4 5/12 2/4 4/6 6/9,3
10/13,5
6/9,3
10/13,5 4/7 6/9 4/7 4 15/15
20/20
20/19 30/25
15/15 20/21
20/21 30/25
40/27 60/32
40/27 60/32
Shaft length short short short short short short short short long long long long long long Length of steering cable (m) 2,7 2,7 3,6 2,75 3,3 Length of remote control cable (ft) 7 9 12 10 12 Navigation light readiness * * * * * * Oars (ft) std. 6,5 std. 7,5 std. 8 std. 8,5 std. 8,5 std. 9 std. 8,5 std. 8,5 opt. 9 opt. 9 opt. 9 opt. 9 CE design category D D D D D D D C/D C/D C C C C Certificate number TER003 TER002 BTER017 BTER017 TER009 BTER010 BTER010 BTER018 BTER018 TER005 TER005 BTER014 BTER014 Type of craft Motorboat Motorboat Motorboat Motorboat Motorboat Motorboat Motorboat Motorboat Motorboat Motorboat Motorboat Motorboat Motorboat Type of hull Monohull Monohull Monohull Monohull Monohull Monohull Monohull Monohull Monohull Monohull Monohull Monohull Monohull Construction material plastic plastic plastic plastic plastic plastic plastic plastic plastic plastic plastic plastic plastic Type of main Propulsion petrol-
engine
petrol-
engine
petrol-
engine
petrol-
engine
petrol-
engine
petrol-
engine
electric-
engine
petrol-
engine
petrol-
engine
petrol-
engine
petrol-
engine
petrol-
engine
petrol-
engine
Type of engine outboard outboard outboard outboard outboard outboard outboard outboard outboard outboard outboard outboard outboard Deck open open open open open open open open open open open open open The strengths of the faste- ning points (kN) 6,0 6,2 7,4 7,4 6,3 5,1 5,1 9,6 9,6 9,3 9,3 10,4 10,4 Rainwater draining * * * * * * * * * * * * * *

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ENGLISH
Declaration of conformity concerning the design, construction and noise emissions of a leisure boat according to
directive 2013/53/EU.
Manufacturer: TerhiTec Oy, 21140 Rymättylä, Finland
Boat model / Certificate number CE category
TERHI SUNNY / TER003 D
TERHI 385 / TER002 D
TERHI 400 / BTER17 D
TERHI 440 / TER009 D
TERHI SAIMAN /BTER010 D
TERHI 445 /BTER018 C/D
TERHI NORDIC 6020 / TER005 C
TERHI 475 / BTER014 C
Essential requirements ISO-Standards, Other normative document/ methods
General requirements (2) EN ISO 8666:2002
Craft Identification Number CIN (2.1) EN ISO 10087:2006
Builder’s Plate(2.2) EN ISO 14945:2004
Protection from falling overboard and
means of reboarding (2.3) EN ISO 15085:2003 + A1:2009
Visibility from the main steering position (2.4) EN ISO 11591:2011
Owner’s manual (2.5) EN ISO 10240:2004
Structure (3.1) NBS 1990, RSG-guidelines
Stability and freeboard (3.2) EN ISO 12217-3:2013
Buoyancy and floatation (3.3) EN ISO 12217-3:2013
Openings in hull, deck and superstructure (3.4) EN ISO 9093-2:2002
Flooding (3.5) EN ISO 15083:2003
Manufacturer’s maximum recommended load (3.6) EN ISO 14946:2001
Anchoring, mooring and towing (3.9) EN ISO 15084:2003
Handling characteristics (4) EN ISO 11592:2001
Electrical systems (5.3)* EN ISO 10133:2012
Steering systems (5.4.1)* EN ISO 28848:1993+A1:2000
Fire protection (5.6.1)** EN ISO 9094-1:2003
* Applied only to models Terhi 445, Terhi Nordics 6020 and Terhi 475.
** Applied only to Terhi 475.
The stability, freeboard and buoyancy of the boat model have been assessed according to certification module Aa.
Notified body number 0609: International Marine Certification Institute
Address: Rue Abbé Cuypress 3
B-1040 Brussels, Belgium
Vantaa 1.10.2016
Oy Otto Brandt Ab Oy
Markku Hämäläinen, Group Chief Executive Ocer
7 Declaration of conformity
CIN:
FI-TRH

ENGLISH
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8 Terms of Warranty
1. We guarantee the Terhi boat a four-year (4) war-
ranty concerning raw materials and manufactural
defects. The warranty period starts from the date
of purchase.
2. We commit ourselves to during the warranty period
repair or have another party repair potential flaws
or failures, which have arisen due to manufacturing
flaws or raw materials used. This, however, requires
that the boat is delivered for reviewing either to the
manufacturer itself or to a repair shop indicated by
the manufacturer, as long as nothing else has sepa-
rately been agreed upon with the manufacturer.
3. The warranty obligation does not aect:
a. Flaws or defects that are caused by factors the
manufacturer cannot influence. These include, but
are not limited to, natural wear and tear, incorrect or
inadequate maintenance or use against the owner’s
manual instructions.
b. Aesthetical deviations, color alterations due to
UV-radiation, oxidation, mildewing or discoloration/
color melting due to use of solvents.
c. Boats, to which structural alterations has been
made by others than TerhiTec Oy.
d. Boats that are used in competitions, as rentals or
for professional use, or any other use that can be
compared to these.
e. Boats to which an outboard has been mounted
that is either heavier or more eective than the
manufacturer allows.
f. Boats whose CIN-code (manufacturing number)
has been removed.
g. Boats that have switched owners without the
original warranty card.
h. Parts and accessories TerhiTec Oy has acquired via
subcontractors (i.e. compass, bilge pump). Warranty
for these is obtained via the original manufacturer.
4. The warranty period for boats that are used in com-
petitions, as rentals or for professional use is one
(1) year.
5. Indirect damages will not be compensated.
6. In order for the warranty to be valid, the warranty
card needs to be fully filled out together with the
reseller at the time of purchase. In warranty-related
issues the customer is to be in contact with the
dealer, from which the boat has been bought.

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TERHI ABS BOATS Omistajan käsikirja – Ägarens handbok – Owner’s manual – Eignerhandbuch – Manuel de properiétaire – Gebruiksaanwijzing 11/2017