Rotostop as River 350 User manual

OWNER’S MANUAL
PRODUCER: ROTOSTØP AS
ADRESS: ØSTKILEN 10,
1621 GRESSVIK
NORWAY
PHONE: [phone]
E-MAIL: [email protected]o
WEB: www.riverboats.no

DECLARATION OF CONFORMITY OF RECREATIONAL CRAFT
FOR 15 January 2017 “Regulations on the manufacture and sale of recreational craft and personal watercraft, etc.”
Directive 2013/53 /EU replaces Directive 94/25/ES, as amended by Directive 2003/44/ES.
(For 20 December 2004 no. 1820 is repealed by FOR 15 January 2016.)
Directive 94/25/EC and Directive 2003/44/EC are repealed with 18 January 2016. The transitional period lasts until 18 January 2017.
NAME OF PRODUCER: ROTOSTØP AS
ADRESS: ØSTKILEN 10, 1621 GRESSVIK
COUNTRY: NORWAY
NAME OF NOTIFIED BODY FOR DESIGN AND CONSTRUCTION ASSESSMENT:
DNV-GL Notified Body No.: 0098
ADRESS: HEMVÄRNSGATAN 9, 17154 SOLNA, STOCKHOLM SWEDEN
EF TYPE CERTIFICATE NUMBER: RCDB0000066 - 04.07.2017.
Module used for design and construction assessment:
☐☐☐☒☐☐☐☐
A B C B+C B+D B+F G H
Description of Recreational Craft
Watercraft Identification Number: NO-RTS 3 .
Brand name of Recreational Craft: RIVER Model 350
Type of construction: ☒Rigid
Type of hull: ☒Monohull
Hull construction material: ☒Other: POLYETHYLENE
Recreational Craft
DEALER –DATE AND STAMP
This declaration of conformity is issued under the sole responsibility of the manufacturer. I declare
on behalf of the manufacturer that the recreational craft mentioned above fulfils the requirements
specified in Article 4 (1) and Annex I of Directive 2013/53/EU.
Name and function:
--------------------------------------------------
Signature
Date and place of issue (dd/mm/yyyy):
Design category:
C
Max. number of persons:
3
Max. load:
320 kg
Length of hull Lh:
3,4 m
Beam of hull Bh:
1,48 m
Max. draught T:
0,1m
Deck:
Open
Craft main propulsion:
Engine/motor
Integral exhaust propulsion
Yes
Max. recom. engine power:
11,2 kW
Max. recom. engine mass
60 kg

TABLE OF CONTENTS
1. Introduction
2. Drawings/parts list
3. Vessel description
4. Check before use
5. Use of the vessel
6. Towing
7. Landing, lifting and transportation
8. Ordinary maintenance
9. Boat storage
10.Use of heat
11.Repairs and disposal
12.Warranty
13.Salvage/fire
14.Mounting of XR-kit

1. Introduction
This manual has been prepared to provide the owner / user with the information that is
special for the safe use and maintenance of the vessel.
The manual only covers the vessel. Mention of other equipment, such as motor, can be
found in the manual for this equipment.
It is assumed that the vessel is not used outside its area of use. It is further assumed that
good seamanship is displayed, both during use and maintenance.
Please obtain sufficient expertise before using the boat.
Please keep this manual in a secure place, and hand it over to the new owner when you sell
the craft.
Information in this publication is based upon the latest production specifications available at printing. Rotostøp AS reserves the right to
make changes at any time, without notice, in the colours, equipment, specifications, materials and prices of all models, or to discontinue
models. Should changes in production models be made, Rotostøp AS is not obligated to make similar changes or modifications to models
sold prior to the date of such changes. Minor deviations between the manual, technical specifications and the physical boat may occur.

2.Drawings / parts list

3. Vessel description
Your River 350 has the following main dimensions:
Length: 3.50 m Width: 1.50 m
River 350 is CE approved for 3 adults in design category C. The rules describe that one adult
can be replaced with two children, as long as each on board has a secure seat with
something to hold on to.
Construction category C - Vessel for use along the coast - (Maximum wind strength: Beaufort
strength 6, light gale (10.8 - 13.8 m / s), maximum wave height 3.6 m).
Maximum approved engine size is 15 hp (11 kW).
NOTE! See also the engine manufacturer’s user manual.
Outboard engine shaft length: Short
Maximum number of people: 3
Weight of boat (dry and empty): 110 kg
Weight of boat w/steering console: 125 kg
Maximum load: 320 kg
Persons + load + engine max: 380 kg
Draft: 0,1 m
Your River is made of high-quality polyethylene plastic. The material is very impact resistant
and durable at normal temperatures. It is fully moulded with a tight cavity which gives the
boat very good buoyancy. The River 350 is designed with a hybrid-hull existing of both a V-
shaped hull and catamaran-pontoons on each side, which gives the boat good planning
properties, sporty driving characteristics and extremely good stability.
Holes in polyethylene plastic are difficult to close as ordinary adhesive systems do not
adhere over time. Therefore, under no circumstances should holes be made in the boat to
install equipment yourself, without first consulting with the manufacturer.
The maximum load of the boat must not be exceeded under any circumstances.
The vessel is self-draining, but if manual draining is required, a ladle should be used. The
expandable drain plug can be used to advantage with high loads to avoid water entering
the floor. It is recommended that the boat is always left without the plug in, so that the boat
will drain itself for shorter periods without supervision. Be aware that the insurance
companies set their own requirements for supervision to fulfil the insurance’s validity. It is
recommended to check the terms of your insurance company.

4. Check before use
Check that no damage has occurred to the vessel. If the watertight hull is punctured, so that
water has entered between the inner and outer hull, the vessel has lost its sink-free
properties. Make sure that paddles and life jackets for everyone on board are brought. If you
have an outboard motor, follow the inspection routines for this (see the engine
manufacturer’s instruction manual).
5. Use of the vessel
Driving a boat involves a responsibility, not only for its own passengers, but also for others
traveling on the sea. Your River is a very stable and safe vessel, with good seaworthiness.
When manoeuvring and using the vessel, good seamanship must still be demonstrated.
Always pay attention to the waters the boat is built for. Breaking waves reduce the boat’s
stability.
It is important to avoid sudden manoeuvres in relation to safety. It is recommended that the
speed is reduced at sea and that loose objects are secured. In rough seas, precautions must
be taken in relation to the boat’s classification. Note that the stop length increases
significantly with increasing speed. Be careful when staying in the bow at high speeds, as
well as with the correct placement of passengers and cargo.
When people or loads are moved, be aware of stability changes and take this into account.
Load placed high in the vessel reduces stability.
If vessels are equipped with an engine, a deadman switch with a string or electronic bracelet
must always be used. Should you fall out of the boat during speed, it is vital that the boat’s
engine stops immediately, so that it does not continue on its own and is a danger to yourself
or the surroundings. It is also important that it stops so that you can save yourself on board
again.
The boat is approved and certified for self-rescue without a bathing / rescue ladder. This
means that it has been tested and proven that a dressed person in the water manages to get
on board again alone. This is easiest to do via the bathing platforms on each side of the stern
and using the embedded handle on the railing. However, it will be much easier to get on
board via a bathing / rescue ladder that is available as optional equipment and is mounted
on the port bathing platform.
When refuelling, use only an approved fuel tank. Care must be taken, and all use of open
flames during filling is associated with a high risk of fire and explosion.
6. Towing
When your River is being towed, the strong towing eye under the bow should be used.
When your River tows another vessel or object, the stern pullers are to be used. By using a
“cock foot”, you will distribute the load on both fasteners aft and achieve better stability and
manoeuvrability, as well as a more even load on the hull. When using davit, approved
fastening equipment must be used and the boat must be secured for good stability. 20 mm
rope must be used for towing and the maximum load on the towing point/attachment is
1000 kg. 3-strand nylon rope with a breaking strength of 7000 kg is recommended.

7. Landing, lifting and transport
The vessel should not be towed on the ground, as this could cause damage to the bottom.
When transporting over land, your River should be lifted using lifting straps. When
transporting on a trailer, make sure that the hull does not rest against sharp edges, and that
the vessel rests in both specified places (see illustration). The boat must not be transported
or stored on a standard boat trailer with a few pulleys / supports, which gives a high point
load and can lead to permanent deformation. The most ideal would be boat trailers adapted
to rotationally moulded boats with long wheelbases on each side to distribute the point load
well over a large area. The boat must be secured / strapped properly for transport but
should not be strapped with great force or stand with tightened straps over time as this can
cause deformations on the boat.
Since the boat in practice stays completely straight and stably resting on the two side
pontoons, a standard goods trailer can also function as a perfect means of transport.
For transport and storage long longitudinal
beams, or wheel tracks, should be used in
the designated places shown in the
illustration. If the two outer positions are
used, nothing is needed along the keel.
8. Ordinary maintenance
Your River is delivered ready for use from the factory/dealer. During the season, small
demands are made on maintenance beyond normal cleaning. Almost all means can be used
for cleaning. The plastic can withstand everything from ordinary household products to
heavier solvents. It is still recommended to test on a small visible field to see if discoloration
or changes in the surface form. Minor scratches, scuffs and damage can be easily sanded
down and polished up again to a nice surface. The boat can be treated with a special
antifouling and primer system that adheres to polyethylene plastic. Contact your dealer or
manufacturer for a detailed description.
Any condensed water inside must be drained from the drain valves on each side aft.
9. Boat storage
In storage, the vessel should be stored dry and covered. The vessel is stored by supporting
under the side keels at the rear and the centre keel at the very front so that the rest of the
centre keel is hanging in the air. As a good rule, the storage points should be as large areas
as possible so that you do not get permanent deformations at too high a point load in a
small area.
Before placing the vessel in storage, check that the space between the inner and outer hull
does not contain significant amounts of water. If the vessel contains significant amounts of
water, the drain plug must be removed, and the vessel tilted up so that the water flows out
of the two upper drain-plugs in the aft. If necessary, use the siphon principle or a pump.
During storage on land, the drain valve / condensate plug should be open.
If the vessel is stored outdoors, it must be covered for snow load, so that this slips off and
does not remain wet and heavy on board the boat. In such extreme cases, the boat can
ultimately be deformed and damaged.

The boat can also be stored over time on a boat trailer. But note that a boat trailer with
pulleys / wheels that runs in the entire length of the boat is required so that the point load is
spread over large parts of the hull. See point 7.
10. Use of heat
Polyethylene loses its strength when heated significantly beyond normal temperatures.
Therefore, do not use open flames or other heat on board the boat. In the event of ignition
or excessive heating, it will produce heavy smoke (non-toxic), the plastic will become shiny,
brittle and lose its mechanical properties, and the boat will no longer meet the current
requirements and rules for safe use at sea.
11. Repairs and disposal
In the event of minor damage to the hull, these can be repaired by melting plastic into the
damage, like welding. This work should be performed by qualified professionals. When your
River is condemned, it must be delivered to a reception for plastic waste. Your dealer can
assist in such a process, so that everything is secured in as environmentally friendly way as
possible. In the future, a condemned River will be a resource and possible raw material for
new recycled production, and thus take part in a circular economy with a minimal climate
footprint.
12. Warranty
Your River is delivered with a guarantee against manufacturing and material defects in
accordance with the Norwegian Consumer Purchase Act.
For other countries other guarantee rules may apply. This will be stated by your local dealer.
13. Salvage / fire
The vessel is suitable and approved for rescue without a bathing ladder. The boat’s outside
and inside mounted handrails can be used for self-rescue in the event of a fall overboard.
There are 3 outside mounted and 2 inside mounted handrails on each side of the boat.
It is recommended that the boat owner retrofits approved fire extinguishing equipment
suitable in accordance with the selected motorization.

14. Mounting of XR-kit

WARNING
•Do not exceed the maximum approved number of people.
•The total weight of persons and equipment must not exceed the maximum
approved weight.
•Approved buoyancy aids/vests are required.
•Never stand several people upright in the boat at the same time.
•Never use an engine with greater power than stated on the CE-sign.
•Always stop the engine before inspecting the propeller.
•When the boat is in motion, no one should sit on the sides of the boat.
•In the event of an explosion or fire on board, post-installed fire extinguishing
equipment can be used and/or the vessel must be abandoned.
•Do not drill or screw into the boat, the floor or near/below the waterline to
install
equipment yourself.
One must be aware of local and international laws and regulations on the environment
(cf. Marpol).