GRAUPNER HYDROPOWER Assembly Instructions Manual

Brand: GRAUPNER

Model: HYDROPOWER

Type: Assembly Instructions Manual

GRAUPNER GmbH & Co. KG D-73230 KIRCHHEIM/TECK GERMANY

No liability for printing errors. We reserve the right to introduce modifications. 04/2011

Assembly instructions for the GRAUPNER HYDROPOWER model boat, Order No.

2066

The model

 ARTR (Almost Ready To Run)

 GRP hull, pre-painted, with decals applied

 Factory-installed 26 cc petrol engine, designed for 1 : 25 two-stroke petrol mixture

 Zero-maintenance electronic ignition system and integral pull-cord starter

 Centrifugal clutch between motor and propeller shaft system; propeller does not rotate when engine is

idling

 Externally mounted safety switch (“kill switch”) for stopping the engine

 Completely factory-assembled model boat, with heavy-duty flexi-shaft supported in aluminium shaft

strut, aluminium rudder system with integral water cooling pick-up, 26 cc petrol engine with water-cooled

cylinder head, pre-fitted exhaust manifold and silencer, fueltank installed and connected, splashproof

RC system box

 Set contents: GRP hull with hatch cover, petrol engine, silencer, exhaust manifold, flexi-shaft drive

system, propeller, rudder system, fueltank, RC fittings, RC box and small items

 For additional information on petrol-engined power boats we recommend that you read the following

book: Verbrenner-Powerboats, Karl-Friedrich Kaupert, vth-Verlag, ISBN 3-88180-748-9 (in German).

Specification

Overall length approx. 1221 mm

Beam approx. 590 mm

All-up weight approx. 8 kg

Manufacturer’s declaration from Graupner GmbH & Co. KG

Content of the manufacturer’s declaration

If material defects or manufacturing faults should arise in a product distributed by us in the Federal Republic

of Germany and purchased by a consumer (§ 13 BGB), we, Graupner GmbH & Co. KG, D-73230

Kirchheim/Teck, Germany, acknowledge the obligation to correct those defects within the limitations

described below.

The consumer is not entitled to exploit this manufacturer’s declaration if the failure in the usability of the

product is due to natural wear, use under competition conditions, incompetent or improper use (including

incorrect installation) or external influences.

This manufacturer’s declaration does not affect the consumer’s legal or contractual rights regarding defects

arising from the purchase contract between the consumer and the vendor (dealer).

Extent of the guarantee

If a claim is made under guarantee, we undertake at our discretion to repair or replace the defective goods.

We will not consider supplementary claims, especially for reimbursement of costs relating to the defect (e.g.

installation / removal costs) and compensation for consequent damages unless they are allowed by statute.

This does not affect claims based on legal regulations, especially according to product liability law.

Guarantee requirements

The purchaser is required to make the guarantee claim in writing, and must enclose original proof of

purchase (e.g. invoice, receipt, delivery note) and this guarantee card. He must send the defective goods to

us at his own cost, using the following address:

Gliders

Brunel Drive, Newark, Nottinghamshire, NG242EG

The purchaser should state the material defect or manufacturing fault, or the symptoms of the fault, in as

accurate a manner as possible, so that we can check if our guarantee obligation is applicable.

The goods are transported from the consumer to us and from us to the consumer at the risk of the consumer.

GRAUPNER GmbH & Co. KG D-73230 KIRCHHEIM/TECK GERMANY

No liability for printing errors. We reserve the right to introduce modifications. 04/2011

Duration of validity

This declaration only applies to claims made to us during the claim period as stated in this declaration. The

claim period is 24 months from the date of purchase of the product by the consumer from a dealer in the

Federal Republic of Germany (date of purchase). If a defect arises after the end of the claim period, or if the

evidence or documents required according to this declaration in order to make the claim valid are not

presented until after this period, then the consumer forfeits any rights or claims from this declaration.

Limitation by lapse of time

If we do not acknowledge the validity of a claim based on this declaration within the claim period, all claims

based on this declaration are barred by the statute of limitations after six months from the time of

implementation; however, this cannot occur before the end of the claim period.

Applicable law

This declaration, and the claims, rights and obligations arising from it, are based exclusively on the pertinent

German Law, without the norms of international private law, and excluding UN retail law.

Important safety notes

You have purchased a kit which can be assembled to produce a fully working RC model when fitted out with

the appropriate accessories. As manufacturers, we at GRAUPNER are not in a position to influence the way

you install, operate and maintain the model, nor the other components used in connection with the model.

For this reason we are obliged to deny all liability for loss, damage or costs which are incurred due to the

incompetent or incorrect use and operation of our products, or which are connected with such operation in

any way. Unless otherwise prescribed by binding law, the obligation of the GRAUPNER company to pay

compensation, regardless of the legal argument employed, is excluded. This includes personal injury, death,

damage to buildings, loss of trade or turnover, interruption of business or other indirect or direct damages

which are caused by the operation of the model.

Under all circumstances and in all cases the company’s overall liability is limited to the amount which you

actually paid for this model.

The model is operated at the sole risk of the operator. To avoid injury to persons and damage to

property please handle your model boat carefully and operate it conscientiously at all times.

Before you run the boat for the first time it is important to check that your private third party insurance policy

provides cover when you are operating model boats of this kind. If you are not sure, take out a special

insurance policy designed to cover the risks of RC modelling.

These safety notes are important, and must be kept in a safe place. If you ever dispose of the model, be sure

to pass them on to the new owner.

The following points are important and must be observed at all times:

 This model is not suitable for young persons under eighteen years of age.

 The model is not a toy, and must be operated with due care. Thoughtlessness and negligence when

assembling and running the boat can easily result in serious personal injury and damage to property.

 The model must not be run when the operator is under the influence of medication, alcohol or drugs.

 This is a high-speed model, which means that you must NEVER operate it when there are persons or

animals in the water, otherwise there is a serious risk of the boat causing severe injury.

 Never run your boat in a protected site, an animal or plant sanctuary or a site of special scientific interest

(SSSI). Please bear in mind that the operation of model boats powered by petrol engines is prohibited on

many stretches of water. Check with your local authority that the location you wish to use is suitable for

model boats.

 Do not run the model in salt water.

 Never operate your boat in adverse conditions, e.g. rain, storm, strong wind, choppy water or strong

currents.

 Before you run the model check that the radio control system is working reliably, and that all connections

are secure.

 Read and observe the recommendations and instructions supplied with your radio control system and

accessories.

 MHz systems only:

Ensure that the channel on which you intend to run the model is not already in use

by other modellers. Never run the boat if you are not certain that your channel is free.

 Do not work on the power system unless the motor is stopped.

 When the petrol engine is running, keep well clear of the area around the propeller, as this represents

the greatest risk of accident and injury. Make sure any spectators do the same.

GRAUPNER GmbH & Co. KG D-73230 KIRCHHEIM/TECK GERMANY

No liability for printing errors. We reserve the right to introduce modifications. 04/2011

 When operating the model ensure that no object can obstruct the propeller. The boat is fitted with a

freewheel (centrifugal clutch), which means that the propeller is stationary when the engine is idling, but

under certain circumstances (e.g. radio interference) the engine may speed up, causing the propeller to

start spinning unexpectedly.

 It is essential to “kill” the engine using the externally mounted safety switch before you lift the boat out of

the water.

 We recommend that you set the radio control system to PCM / SPCM (in the case of MHz systems)

mode for running the model, as this makes it possible to program a fail-safe for the engine’s throttle

servo, causing it to stop or run at idle if a problem occurs. If you are intending to use a radio control

system which lacks a fail-safe option, the separate Failsafe Micro Module (Order No. 98023) must be

used on the throttle channel. All 2.4 GHz systems offer a Fail-Safe option.

 Check that all the drive train components work smoothly and freely. This applies in particular when you

are running the model, as leaves and other detritus can get caught up in the power train. If this happens

and you do not remove the obstruction, the freewheel, the flexi-shaft, the propeller and / or the rudder

servo may be ruined due to overloading. It is also important to avoid the boat passing over hard or fixed

objects in the water, as these may cause damage to the rudder system. This hazard is particularly

prevalent in rivers, as flotsam comes past quickly and is difficult to see.

 Never leave batteries on charge unsupervised. Be sure to read and observe the instructions provided

with the charger and the battery.

 If you use a charger powered by the battery of your car, it is essential to carry out the charging process

outside the vehicle.

 Ensure that the servos are not mechanically obstructed at any point in their travel.

 Dry cells and rechargeable batteries must never be short-circuited. Do not allow them to come into direct

contact with water.

 It is important to observe the basic safety regulations when handling petrol, as the material is highly

inflammable and toxic. The same applies to the storage of the fuel.

 Allow the engine and the exhaust system to cool down thoroughly after each run. Take care not to touch

the hot parts!

 Do not subject the model to high levels of humidity, heat, cold, vibration or dirt for prolonged periods.

 Remove all batteries (dry and rechargeable) from the boat before storing it. It is important to store all

batteries in such a way that short-circuits are impossible.

 If you know you will not be operating the model for a considerable time, drain the fueltank and all fuel

lines.

 Secure the model, batteries and RC equipment carefully when transporting them. They may be seriously

damaged if they are free to slide about.

 Please bear in mind that the boat can only move in the forward direction. Don’t allow the model to run

into a position where you cannot recover or retrieve it!

 Remember that the boat will immediately stop if you drain the fueltank completely; it is therefore

essential to keep a reserve of fuel in the tank at all times. During the first few runs check the fuel level

after about five minutes of running.

 If you wish to operate the model on moving water (e.g. a river), remember that it could be washed away

downstream if a malfunction occurs or the fuel runs out.

 If you have to salvage the model, take care not to risk your own life or that of others.

 Check regularly that the hull is completely watertight, as the model may sink if too much water enters the

hull. Check the boat for damage before every run, and ensure that water cannot penetrate the hull

through the shaft or rudder openings. The RC box should be sealed with adhesive tape to render it

watertight, otherwise spray may enter from above. Components damaged by water are not eligible for

repair under guarantee! It is not possible to prevent water entering the boat, as the air intake openings in

the hatch cover must be left open at all times; this is in the nature of model boating, and appropriate

measures must be taken. TIP: buoyancy aids for swimmers in the form of long strips of foam (‘foam

noodles’) can be purchased from any sports shop; they can easily be cut to size and installed in the

model - especially in the sponsons - to improve its buoyancy. Please note, however, that there is little

point in installing insufficient buoyancy material; the hull must be fitted with sufficient foam to support the

weight of the model (8 kg).

 Before every run, lock the hatch cover closed by engaging the mechanical bolt. You should also apply

adhesive tape round the hatch cover in the cockpit area for additional security.

GRAUPNER GmbH & Co. KG D-73230 KIRCHHEIM/TECK GERMANY

No liability for printing errors. We reserve the right to introduce modifications. 04/2011

Care and maintenance

 Clean the model carefully after every run, and immediately remove any water which has penetrated the

hull. Leave the hatch cover open for a long period so that any residual damp can dissipate away.

 Clean the model and RC components using suitable cleaning agents only. Ask your model shop for

information on appropriate cleaners.

 Lubricate the flexi-shaft at regular intervals when you are operating the boat. Your model shop will

advise you on non-contaminating lubricants which may be used.

 If the model is not to be operated for a considerable time, it is important to dismantle all the moving parts

(flexi-shaft etc.), and clean and re-lubricate them. Remove all batteries (dry and rechargeable) from the

boat and the transmitter, and store them separately from the boat.

Notes on building the model

 Assemble the boatstand components. Place the model in the stand and leave it there for all remaining

preparation work.

 Insert the flex-shaft in the stern tube, and screw the

shaft strut permanently to the bracket. Ensure that

the square section of the flex-shaft engages fully in

the coupling. Fit the heat-shrink sleeve over the

joint and shrink it in place.

 Assemble the two rudder systems as follows:

loosen the grubscrews and withdraw the shafts. Fit

the rudders on the bracket, then re-fit the shafts.

Tighten the grubscrews again. Ensure that the

grubscrews engage squarely on the machined flat

in the shafts.

 Press the ball-end bolt of the rudder into the ball-

link on the rudder pushrod, then screw the link

pushrod to both rudders. NOTE: the washer must

be fitted under the link.

 Push the two water-cooling hoses into place.

 Install the propeller.

 Loosen the screws holding the cover on the RC

box, and remove the cover.

GRAUPNER GmbH & Co. KG D-73230 KIRCHHEIM/TECK GERMANY

No liability for printing errors. We reserve the right to introduce modifications. 04/2011

 Fit the switch in the rubber seal from the underside, and

tighten the retaining screws. Install the servos, the

receiver and the receiver battery as shown in the photo

(the photo shows the components originally used). The

servos are fixed in place using the screws supplied with

them. The receiver and battery should be held in place

inside the box using self-adhesive Velcro tape. It is

important to ensure that the battery cannot shift when the

boat is running; we recommend a strip of Velcro tape

around 70 mm long for adequate security. Connect all the

RC components together and check from the transmitter

that the system works properly. Set the rudder pushrod

and the rudder servo to centre. Adjust the throttle linkage

in such a way that the maximum throttle servo travel in

each direction coincides with the end-stops (full-throttle

and idle) of the carburettor. This can be accomplished

mechanically by adjusting the position of the output lever

on the throttle servo, and - if necessary - by using a

different linkage hole in the output arm. Alternatively use

the servo travel reduction facility on your transmitter.

NOTE: don’t use the standard receiver included in the RC

set, as this does not include PCM / SPCM mode.

However, the receiver crystal supplied in the RC set can

be used in the recommended SPCM receiver. The wire

aerial attached to the receiver must be routed out of the

RC box through the tube provided, and secured at its top

end. NOTE: in the photograph above, the silencer has

been removed in order to show the arrangement more

clearly.

 Check that all screwed joints on the engine are really tight,

and apply a drop of UHU thread-lock fluid (Order No. 952)

to each junction for additional security.

 Check that the water-cooling hoses are firmly seated; it is

essential that they cannot possibly come adrift while the

boat is running.

 The next step is to fill the fueltank and check the engine

functions. Do not run the engine in an enclosed space, as the exhaust gases are toxic. NOTE: keep

yourself and everything else well clear of all the rotating parts of the drive system - especially the

propeller - whenever the engine is running.

GRAUPNER GmbH & Co. KG D-73230 KIRCHHEIM/TECK GERMANY

No liability for printing errors. We reserve the right to introduce modifications. 04/2011

Running the engine for the first time

Before attempting to start the engine for the first time you should check that all external components are

firmly seated, including the carburettor, exhaust manifold and silencer. The engine is set up at the factory,

and should run without further adjustment.

Fuel

The fuel mixture should consist of a 1 : 25 blend of oil and petrol (i.e. petrol with 4% oil content). Fuel should

be Super or Super-Plus grade petrol. We recommend our Comp 2 Plus Silkoil, Order No. 6702.1L, as

lubricant.

Starting the engine from cold

Close the carburettor throttle flap and move it to the Idle position. Close the choke flap on the carburettor,

then press the priming pump on the carburettor until fuel is visible in the transparent bowl. Grasp the pull-

cord starter toggle and pull it repeatedly until you feel the first detectable resistance. Now pull the cord

strongly and vigorously until you hear the engine fire. The engine will generally stop again at this first

attempt. Open the choke flap and pull the starter again until the engine fires and continues to run. NOTE:

never run the engine at full-throttle or high speed when it is cold; allow it to warm up for three or four minutes

before opening the throttle. The engine can be stopped at any time using the safety switch (shorting switch)

mounted on the outside of the hull

Starting a warm engine

Leave the choke flap open, press the priming pump, and pull the cord to start the engine. The engine is

stopped using the safety switch (shorting switch) on the outside of the hull.

Adjusting the carburettor

As supplied, the carburettor is set up correctly to suit

the local conditions at the time of adjustment, but

further minor alterations may be necessary according

to the silencer you are using and / or the ambient

conditions. The first step in setting up the engine is to

allow it to warm up to operating temperature. If there is

a delay in the engine’s response when you open the

throttle, then the mixture is too lean. In this case open

up the idle mixture screw L slightly by rotating it anti-

clockwise. If the engine stutters and emits clouds of

smoke as it picks up speed, then the mixture is

probably set too rich. In this case close the idle mixture

screw L by turning it clockwise by a small amount. To

adjust the high-speed setting you must first place the

boat on the stand (IMPORTANT: make certain that

nothing can obstruct or contact the propeller - extreme

injury hazard!), then start the engine and apply full-

throttle briefly. If the mixture is too lean, turn the full-

throttle mixture screw H slightly to the left; if too rich,

turn the screw a little to the right. The idle stop screw is

used to set the idle speed, which should be no lower

than 2500 rpm. IMPORTANT: don’t allow the engine to

run at maximum speed for more than a brief period in

its unloaded state (i.e. out of the water). NOTE: if you

make an adjustment to a carburettor setting, i.e. the

idle mixture screw L and / or the full-throttle mixture

screw H, you will generally need to adjust the idle stop

screw afterwards.

Basic carburettor settings

The following values represent a starting point for the basic carburettor settings. In most cases only fine-

tuning is required, but if you make major changes to the idle mixture screw L and / or the full-throttle mixture

screw H, you will need to start again from the beginning using the following procedure: carefully turn the two

screws L and H clockwise as far as they will go, then unscrew the idle mixture screw by 1.5 full turns, and the

GRAUPNER GmbH & Co. KG D-73230 KIRCHHEIM/TECK GERMANY

No liability for printing errors. We reserve the right to introduce modifications. 04/2011

full-throttle mixture screw by 2 full turns, in both cases turning the screw anti-clockwise. The engine should

run at these basic settings, but is very likely to require further adjustment.

Running-in a new engine

For the first two tankfuls you should avoid running the engine at maximum speed as far as possible. The

engine can then be considered to be run-in, and is safe to run for long periods at full speed.

Engine repairs

If your engine requires repair, please don’t attempt to carry out the work yourself. Remove the engine from

the boat and send it to the Graupner Service Centre (address on page 1) for repair.

Adjusting the wings on the model

The front and stern wings on the boat can be adjusted to suit the water conditions. For the first few runs we

suggest that you set both wings parallel to the surface of the water. As a basic rule, always adjust both wings

in the same direction.

Front wing: the purpose of the front wing is to prevent the boat’s bow rising, which could cause the model to

flip over. If the boat should turn over, you can usually expect it to sink or at least suffer major damage, so this

must be avoided at all costs. For this reason please take particular care when adjusting the front wing, and

make any alterations in very small stages - particularly if you are raising the wing with the aim of elevating

the bow at speed.

Stern wing: this is intended to raise the stern just to the point where the propeller is able to run in the semi

surface-piercing state (this term means that only the lower blade is in the water at any one time). A raised

stern also minimises the danger of the boat flipping over.

Adjusting the shaft strut on the model

The propeller is correctly adjusted when the rotational axis of the shaft lies parallel to the surface of the water

when the boat is running at maximum speed. The shaft strut is held in place by a single screw; always

tighten this screw firmly, as the propeller exerts a powerful moment on the shaft strut and will try to move it

out of position. TIP: shifting it in the downward direction raises the stern, while moving it upwards lowers the

stern. TIP: once you have established the optimum setting for the shaft strut, we suggest that you drill a

through-hole and fit an M2 screw through it to prevent the setting being lost accidentally.

Maiden run

Give all the batteries a full charge, and carefully check the boat’s working systems one by one. Only then

should you fill the fueltank and start the engine. Secure the hatch cover carefully, so that it cannot possibly

fall off. Check the effective radio range with the engine running. When you are satisfied, you are ready for the

boat’s maiden run. NOTE: at all times when operating the model take care that no part of your body can

contact the propeller. Run the boat slowly at first, and take your time to become accustomed to its handling

characteristics. Please bear in mind all the time that the boat is not capable of reversing, and this will dictate

which manoeuvres are safe or feasible. NOTE: if you have to turn the boat tightly, reduce the throttle

substantially to avoid any risk of the model turning over.

All of us hope you thoroughly enjoy running your GRAUPNER HYDROPOWER.

Replacement parts

Order No. Description

2066.2 Hull

2066.3 Hatch cover

2066.5 Rudder system and shaft strut

2066.7 Flexi-shaft

2317.76 Propeller

Model shop NGK BP MR6A sparkplug

Accessories (not included in the kit)

Order No. Description

33112 mx-12 HoTT 2.4 GHz RC set

7986 HBS 770 high-voltage digital servo (two required)

7672.2 LiFE 2/2900 receiver battery, 6.6 V

3934.3 Switch harness

3368.1 Velcro tape, 100 mm long

You can find the current accessory list on the website at www.graupner.de

GRAUPNER HYDROPOWER Assembly Instructions Manual

GRAUPNER HYDROPOWER Assembly Instructions Manual

GRAUPNER HYDROPOWER Assembly Instructions Manual

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