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3W 684i B4 Manual

60i 70i 70i US 75i 75i TS 75i US 342i B2 342i TS 106i B2 / CS 24i 28i

Made by: 3W
Type: Manual
Category: Engine
Pages: 18
Size: 0.34 MB


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684i B4 / TS / QS Engine Manual

more infos: www.3w-modellmotoren.com


684i B4 / TS / QS


684i B4

684i B4 TS


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684i B4 / TS / QS Engine Manual

more infos: www.3w-modellmotoren.com

Dear customer,

Thank you for placing your confidence in 3W. Our long experience (since 1985) in designing and

producing model airplane engines, ranging from single up to six cylinder, has been utilized to

provide you with the best engine possible. Our in-house engineer has been designing two and

four stroke engines for gasoline and diesel for 38 years. We are continually looking at new

technologies and working on new designs. Please be assured that we at 3W always strive to

provide you with engines that are state of the art.

You can count on your 3W engine to have:


a high level of precision


high torque in the low rpm range


excellent running characteristics

 a long life


lots of power

And a 36 month conditional warranty.

We wish you plenty of fun and success with your new 3W engine.


The 3W Team

Limited Warranty

We grant a 36 month warranty from the date of purchase. This warranty is limited to the replacement

of defective parts that are a direct result of faulty material or manufacturing. No claim concerning

a defect caused by non-compliance with installation or operation instructions, mishandling, unsuitable

spare parts nor unskilled repairs will be acknowledged. Please ask your dealer to fill out a warranty

certificate for you at the time of purchase. Important: Keep this certificate in a safe place as this

warranty will not be honored without it. The original receipt is also required.


This engine is not a toy! Serious injury and /or death can occur from its misuse! READ and become

familiar with this entire instruction manual. LEARN the engine's applications, limitations, and

possible hazards.


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For your safety and for the safety of those around you -- also to learn what is required to maintain your warranty -

we strongly advise you to read this entire manual carefully BEFORE you start using the engine.

Safe Operation and 3W's Conditional Warranty

For safe operation and to maintain your warranty you must:

 Have a properly designed engine box on your model

 Mount the engine correctly

 Provide adequate air flow and cooling for the engine

 Provide adequate air flow and cooling for the exhaust

 Use an approved propeller and spinner

 Drill the propeller correctly

 Balance the propeller correctly

 Tighten the propeller bolts correctly and check them regularly

 Properly mount your ignition to avoid overheating

 Use the correct battery and regulator (if applicable) for your ignition

 Use the correct switch for your ignition

 Use an appropriate fuel tank, plumbing lines, and installation

 Use the appropriate fuel for break in and after break in (gas and oil)

 Insure adequate filtering of your fuel

 Maintain your engine properly, keeping it clean, etc.

 Use a pre-flight check list before flying your model

 Secure your model properly when starting


Not use your fingers or hand to start your model

 Adjust your carburetor correctly

 Not adjust your carburetor while the engine is running

 Insure that your spark plug is in good condition and is secured correctly

 Insure that your ignition wires are not frayed and are protected

 Insure that your ignition cap is securely mounted


Keep all people behind the line of the prop

 Do not put anything (i.e., fingers, body parts, objects, et al) into the rotating propeller

 Keep children away. All spectators should be kept a safe distance away from the running engine.

 Wear proper apparel. Do not wear loose clothing, gloves, neckties, jewelry, or neck straps for your radio

which may get caught in the moving propeller.

 Always wear eye protection when starting the engine.

 Do not operate this engine if you are under the influence of any drugs, alcohol or medication that could affect

your ability to use the engine properly.


We cannot control how safely our products will be used. And, therefore we do not accept any  responsibility for

damage, or injury from their usage.


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Engine Installation

The engine should be mounted on a motor box that will in turn mount to the fuselage. A quadrilateral

shape (gradually increasing in size as it goes away from the motor) provides the best circulation

of air. The reason for using a motor box rather than mounting the engine directly to the fuselage

is that the cylinder(s) need enough room around them to provide proper airflow over and away

from them

The motor box should be stiff enough to prevent engine vibration and it should also have a solid

firewall. The firewall of the motor box should be made from 1/4" aircraft plywood for engines up

to 106cc, or 3/8" aircraft plywood for engines in the 150cc class.  For builders experienced with

making composite motor boxes; a comparable strength should be attained.

It is absolutely vital to ensure a tension free mounting of the engine. The surface that the engine

is mounted on must be on an even plane (i.e., a flat and level surface) so that there is no strain

on the engine itself. Again, this is a vital and critical requirement to avoid distorting the crank case,

ruining the engine, and voiding your warranty.

Mount the engine to the motor box with high tensile bolts. Once mounted you now have a sub-

assembly that you can mount to your fuselage. Spacers can be made from hardwood dowels (3/4"

to 1") or machined aluminum bar stock to adjust your down and side thrust. These spacers should

go between the motor box and fuselage and not the motor box and engine.


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It is strictly prohibited:

To mount the engine directly onto spacers for the following reasons:

a. If the spacers are too long and/or not stiff enough the engine could vibrate leading

to the crankshaft starting to twist, further leading to the crank case being destroyed.

b. If spacers are used to adjust the side and/or down thrust and this spacing no longer

provides an even plane (i.e., a flat and level surface) the crank case will be distorted,

leading to the crankshaft starting to twist, further leading to the crank case being


 To mount the engine directly onto a large (wide) former or firewall for the following reason:

a. If the cylinder(s) is/are too close to this wide former or firewall, the floating air cannot

pass freely over and then away from the cylinder(s). Cavitating hot air can/will overheat

the engine.

Engine Cooling

A proper cooling system is vital for any engine. An air cooled engine requires an appropriately

sized air intake. Also to keep this air cooling process working the incoming air must be exhausted.

Further, the exhaust air outlet should be four times (4X) the size of the cool air intake.


 10 square inches of air intake area would require

 40 square inches of exhaust air outlet area

It is up to you to insure that the air flows freely to, over, and away from, the hot cylinder(s) and

muffler(s). Please refer to Engine Installation for motor box considerations, and to the following

tips on baffling.


Deflecting of the air (baffling) to and over the cylinder(s) is highly recommended for engine cooling.

The idea is to get all of the cool air that is coming through the air intake opening(s) to hit the middle

of the cylinder(s) directly, and then be forced over the cylinder(s), creating turbulent air moving


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through the cylinder(s) fins. The freely flowing, but directed and turbulent air between the fins

provides the maximum cooling for an air cooled engine. Without baffling (meaning wood or

composite dampers that direct the airflow) the air will take the path of least resistance. Some

incoming air will bounce off the cylinder(s) and the rest will escape around the cylinder(s) without

coming into contact with the cylinder(s).

Engine in pusher operation:

Important note! When engines are used operating in pusher configuration cooling gets critical and

special attention has to be given to an effective cooling method. A good cooling system layout

depends on the actual location (position) of the engine in the fuselage. A sketch is attached for

your reference. If you are in doubt do not hesitate to call us.

Operating temperature

The normal operating temperature range for your engine is 176-212 Fahrenheit (80-100 Celsius).

If the temperature of the engine rises above 230 degrees Fahrenheit the engine is in an overheated

condition where sealed ball bearings and needle bearings could be damaged. Further, you risk

an elongation of the heated engine parts, and / or having an oil film build up, which could lead to

a seized piston or pistons. Following the instructions and recommendations in this manual will

keep the engine operating comfortably within the normal temperature range.

Rear induction

Carburetors, whether front or rear, require a steady supply of fresh air. The best way to supply

air to a rear carburetor is by installing an air scoop. Some have thought to drill holes into the

fuselage near the carburetor area rather than creating an air scoop for the carburetor. This does

not work, it fact it will create a vacuum effect that will draw the air away from the carburetor! Again,

you should install an air scoop into the front of the plane which will supply air into the fuselage.

This air will then need to flow out of the fuselage. Drill exit holes into the rear area of the fuselage

for this purpose. Important: The interior of the fuselage must be sealed to prevent damage from

gasoline that sprays from the carburetor. Use a thin epoxy or other appropriate fuel proofing

method. Do not overlook this step as gasoline will melt some materials like Styrofoam very quickly.


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Consideration needs to be given to the placement of the electronic ignition module. Avoid placing

the module in the path of hot air. Mount the ignition module using the four supplied rubber grommets

so as to create a 1/16" gap between the ignition module and the mounting surface. Without this

1/16" gap the ignition module can overheat. Important: If the electronic ignition overheats it will

malfunction (e.g., backfiring or shutting down).

Ignition details:


The red cable is positive (+)


The ignition timing has been set at our factory


When fitting a new ignition it is important to achieve the correct coordination of the sensor(s)

to the magnets

Refer to our special ignition description for further information

Canister mufflers

To prevent damage to the header(s) a flexible support bracket is required to mount the canister(s).

The location for this bracket should be at the canister's center of gravity. 3W canisters have a

reinforcement ring at this location.

We suggest creating two compartments in the front section of the fuselage by installing a horizontal

tray. Fuel tanks, batteries, and other equipment can be mounted on top of this tray; the canister(s)

being installed below it. Close off the lower compartment at its rear with an angled former. Locate

this former 1" behind the back of the canister(s). Next cut a hole in the bottom of the fuselage just

under the rear of the canister(s). In this way the air coming from the front of the model can flow

over the canister(s) and then be deflected by the angled former so as to exit through the hole in


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the fuselage. Do not forget to reinforce around this hole.


This exit area needs to be four times (4x) as large as the intake area.


 Only use propeller brands and sizes that are approved for your engine

 The propeller blades must be of the same length

 The propeller must be flat (You can check for flatness by putting the propeller on a level

surface. The maximum difference of the blade heights should be no more than 1/64".)

 The propeller tips must have an identical shape. This is especially important when using

3 or 4 blade propellers.

 You must use a drill press to drill your propeller.

 You must drill the propeller from the rear.

 A drill guide is recommended, but the propeller washer can be used as a drill template. (Fix

the propeller washer onto the propeller in the center-bore using a bolt and nut. Drill one

hole; put one of the propeller bolts into the hole. Continue until the last bolt is used.)

 If you cannot hand tighten all of your prop bolts easily then you have not drilled the propeller

correctly. This can lead to sheared propeller bolts.

 Balancing your propeller is absolutely critical to the health of your engine. You must keep

your propeller balanced. (Propeller balancers are available from DUBRO, and others.)

 Always remember that when the engine is running every person must stay behind the line

of the rotating propeller; never to the side or the front!

Carburetor settings

Before each engine is shipped it has to pass QC and is then test run. We do a basic adjustment

of the carburetor needles at that point.

front carb.: highspeed needle:

rear carb.:

highspeed needle:

low speed needle:

low speed needle:


 Do not remove the carburetor spring as the spring helps keep the carburetor butterfly

aligned properly. Merely release the ends of the spring so that it no longer holds the butterfly



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Carburetor Linkage

Included with your engine is a metal bracket to extent your carburetor pushrod horn. Fix this

bracket onto the carburetor horn with a 2.6m machine screw and nut. Then solder the arm in place.

Refer to the attached illustration.

Note: The use of a soft pushrod for the throttle (plastic or nyrod) is not recommended. Use a metal

or carbon fiber pushrod with a plastic ball joint or plastic clevis at each end. This will keep your

RPM much more consistent and accurate around idle where it really counts.

Engine Break In

 Use a 2-stroke petroleum based oil (preferably ashless) as this type of oil has a good

honing effect which helps to break in the engine

 Use a mixture of 32-1 or even 30-1

 Use this fuel mixture for approximately 2-3 hours of run time

 Use a high Octane unleaded fuel (98 Octane is ideal)

We suggest starting the break in process of the engine on a test stand; for approximately one

hour. This time should be used to get familiar with the engine. Do not run the engine at full throttle

for more than ten seconds during this test stand break in. The reason for this is that you are not

getting the normal cooling effect that you would if the engine was in a model that was flying.


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Another method that can be used for break in would be to set the engine between 2000-2500 rpm

and let it run for 4 hours. After that the engine would basically be broken in. Note: For break-in a

smaller propeller is recommended.


Remember that when the engine running ever

 person must stay behind the line of the rotating propeller; never to the side or the front!

After Initial Break In

 Use high grade fully synthetic 2-stroke oil

 Use the oil manufacturer's recommended gas to oil mixture

 We use 3W 2-stroke oil in our engines here in Germany, but there are other high grade

2-stroke oils that will perform well. The list below shows some 2-stroke oils that our customers

from abroad have used with success.

Pennzoil at 50-1

Redline at 40-1

Amsoil DOMINATOR Racing Oil at 50-1

Amsoil Saber 100:1 Pre-Mix Oil at 100-1

Note: The engine needs 12-20 hours running time for the break in process to be 100% complete.

Additional installation notes

 There must be a minimum 4" separation between anything attached to the receiver and

all things related to the ignition (i.e., the ignition itself, and its wires, battery, and switch)

 Use a plastic spiral sheath to protect the ignition cables

 Never remove the sparkplug cap by using a mechanical aid like pliers. Only remove the

cap by hand using a twist/pull movement.

 The spark plug cap must be firmly seated to the sparkplug. If the spark plug cap is not firmly

seated there is a very good possibility that you will experience radio interference.


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 Use only ignition on/off switches recommended by 3W

 6 volts is required for the ignition.

 Do not skimp on your throttle servo. A high quality throttle servo is recommended for reliable

and accurate operation of the carburetor.

 Never fill the fuel tank via the carburetor fuel line

 Use the same I.D. for tank ventilation and the carburetor fuel line

 Use small plastic cable ties on all fuel line to fitting connections.

 We recommend cutting the fuel line in the fuel tank in half. And, then joining them back

together with a brass tube. The brass tube prevents a folding of the fuel line with could cut

the fuel supply for the engine (see tank photo).

 The use of soldered on DUBRO barbs on the ends of the brass tubing is highly recommended.

Again, always secure the fuel line with small plastic cable ties.


Failing to read and follow all of the instructions in this manual can lead to unsafe conditions and

damaged equipment. Here are some examples:

 Unbalanced propellers can damage the engine's ball bearings, needle bearings, even

cause the crankshaft to break

 Incorrectly drilled propellers can lead to sheered propeller bolts further leading to accidents

and crashes

 Loose propeller bolts can also lead to sheered propeller bolts further leading to accidents

and crashes. Check these bolts before starting your engine.

 Flipping the prop with your hand or fingers can lead to serious accidents! Always use a

rubber stick to start the engine!


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 Not having the plane secure can be lead to serious accidents. Depending on its size use

one, two, or more helpers to secure your model. Always tell your helpers to be ready for

the model to start at full power. Remember, these engines have a high power output.

 Do not put your finger(s), any items, or any other parts of the body into the rotating propeller.

 Never tune the carburetor whilst engine is running! Stop the engine. Tune the carburetor

and start the engine again. Repeat this procedure until the carburetor is properly tuned.

 Make sure that no gasoline will be splashed into the hot muffler(s).

 Only 3W mufflers, or mufflers authorized by 3W with an acceptance (test) number, should

be used.

 Only 3W-ignition systems should be used for proper operation.


Using unauthorized products or failing to follow the instructions in this manual will void your

warranty immediately.

Pilots check list

We strongly recommend checking the following agenda for your own safety before starting!

 Check the propeller bolts for tightness

 Check that the spinner is firmly attached

 Check the propeller for possible damage

 Check to be sure you have the throttle position at idle

 Check all batteries

 Check servo functions

 Check to see that the ignition switch is OFF

 Check pressure (6-8 bar) system of retract (if applicable)

 Check all linkages for play

 Check your wheels for possible damage and easy running

 Check the wing mounting for tight fit and proper attachment

 Check the canopy for tight fit and proper attachment

 When starting the engine one person (minimum) has to hold the model

Starting Procedure

If you have read and understood this entire manual, and followed its recommendations, you are

ready to start your new engine.


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 Use a rubber stick to start the engine. Never use your hand or fingers!

 Insure that your receiver batteries are charged and your receiver is on

 Insure that your ignition battery(s) are charged

 Insure that your transmitter is on, and that your throttle is set to low

 Insure that your plane is properly and safely anchored (use one, two, or more people if


 Close the choke(s)

 Switch on the ignition

 Flip the propeller until the engine "pops" (starts and stops quickly)

 Wait for the propeller to stop spinning, turn off the ignition, and open the choke(s)

 Switch the ignition back on


Flip the propeller again until the engine starts

 Warm-up the engine for at least 20 seconds

 Due to the high power and torque of the engine(s) it is not recommended to open the throttle


Precision tuning of the carburetor

The use of a tachometer is highly recommended. And, again, never adjust the needles while the

engine is running!

1. Using the tachometer tune the engine for maximum power with the high needle (H).

2. Again using the tachometer; richen the high needle (H) until the motor runs 100-200 RPM

less than the maximum RPM. Now you are tuned slightly rich on the high needle (H).

3. Let the engine run at idle for one minute. Check to see that the idle RPM remains constant.

4. If the idle RPM drops until the engine stops; the low needle (L) is too rich. Lean the low

needle (L) until a constant idle RPM is achieved.

5. Check the transition with a quick throttle advance. The engine should not sound strained

at any time. It should sound like it is making quick steady power; without any hesitation.

6. An optimally tuned engine will feel a bit rich after a cold start. It will start to run right after

it has warmed up for approximately one minute.


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Trouble Shooting


The engine is flooded (the crankshaft housing is filled with fuel).


Remove the spark plug; turn the engine to a position where the fuel runs out.

The engine starts after being choked but then stops soon after.

The low needle on the carburetor is probably too lean. Go back to the recommended settings

and adjust your carburetor from there. This problem may also indicate a dirty carburetor or

faulty ignition.

The engine runs rough and is vibrating strongly.

Balance the propeller. Check the ignition timing. Check your plumbing for air/fuel leaks.

Check your spark plug for carbon and check the spark plug gap. Check the motor mount to

be sure it is rigid. Check to make sure the engine is mounted on a level surface so that the

crankcase is free of tension. Check the engine and propeller bolts.

The engine doesn't reach a normal RPM at full throttle.

Check the carburetor settings. Check to see if the propeller is too large. Verify that you have

the correct muffler system. Check to see if the engine is overheating. Check the ignition

timing. Check the spark plug for defect. Verify you have the correct gasoline, oil, and have

mixed them with the correct ratio.


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Techn. Spezifikation / Techn. specifications / Caracteristiques techniques

684i B4  / QS

684i B4 TS  / QS

Cylinder capacity

684 ccm / 41.73 cu.in

Power / Puissance

 60 CV; 44,13 kW

Bore dia. / Alesage 

66 mm / 2.6 in

Stroke / Course 

50 mm / 1.97 in

Speed range / Vitesse de rotation 

1200 - 5000 min-1 / rpm

Weight / Poids

incl. ignition

16.000 g / 35.27 Ibs 

16.350 g / 36.04 Ibs

Crankshaft / 

5 Ball bearings / 5 Roulement à billes

Connection rod /

Needle bearings on both ends / Roulement à
aiguille aux deux cotés


1 : 50 - 1 : 80 Mix, full syntethic oil, high Octane
unleaded fuel (98 Octane is recommended)

IIS - Ignition / V.cc allumage

6,0 V

Propeller / Hélice


 2-bladed / à 2 pales: 40x18, 42x18, 28x40


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intelligent Ignition System with microprozessor controlled auto timing

more infos: www.3w-modellmotoren.de


For optimum operation of combustion engines an ignition system with auto timing is necessary. For easy starting

up a spark is ideal in the upper dead point position of the pistion. With increasing rpm a pre-ignition timing up to 30

degree is needed.

This is achieved with our new system using a high precision rpm-check by two magnets built-in the hub of the engine.

The hallsensor transmits the signal to the microprocessor, programmed with our engine characteristic.

Technical specifications

Temperature range : 

- 40o C / + 65o C 

ambient temperature

Voltage range:

4,8 V - 7,5 V

five cells NICAD

one - cylinder

two - cylinder

Operation voltage

6,0 V

6,0 V

Open - circuit current

18 mA

18 mA

Current - consumption

20 mA

0 rpm

20 mA

0 rpm

100 mA

1000 rpm

120 mA

1000 rpm

950 mA

6000 rpm

1100 mA

6000 rpm

1100 mA

10.000 rpm

1300 mA

10.000 rpm

Ignition Voltage

> 20 kV

> 20 kV

Rpm. max

12.000 rpm

12.000 rpm

Magnet red (north pole)

upper dead point

upper dead point

Magnet green (south pole)

55o before upper dead point

55o before upper dead point

Like all other electronic devices the ignition box gets warm under operating conditions. For that reason a simple

airflow has to be guaranteed. Therefore the 4 delivered rubbermounts have to be used for installation, insuring a

one millimeter gap underneath the box.

Cable information

blue wire

to sensor

red / black with bigger dia, with socket

to battery

red / black with plug

connection for red LED, long contact +

yellow / white with socket

connection for 3W tachometer and other options

Info about red LED


Ignition battery switched on:

LED on


Propeller one turn (flip):

LED off - ignition ready for operation


Propeller not being turned (flipped), after

twenty seconds:

LED on, ignition prepared but not ready for operation

This safty function has two reasons:

- the engine cannot be started by coinsidence if sombody forgot to switch off the ignition

- battery will be protected against incidental discharge

d) in case the LED will not get off when propeller is turned (fliped): hall sensor is not connected or other defect


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Wir geben auf unsere Geräte 36 Monate
Vollgarantie ab Verkaufsdatum.
Die Garantie ist ausschliesslich
beschränkt auf den kostenlosen Ersatz
defekter Teile, deren Mängelursache
Konstruktions oder Materialfehler sind.
Wir möchten ausdrücklich darauf
hinweisen, dass die Garantie nur dann
erfüllt wird, wenn der Garantieanspruch
gleichzeitig mit dem
Reparaturauftrag geltend gemacht wird.
Beachten Sie auch bitte, dass wir einen
Garantieanspruch nicht akzeptieren
können, wenn die Störung durch
unsachgemässe Behandlung (siehe
Gebrauchsanweisung), durch natürliche
Abnutzung, durch Verwendung fremder
Ersatzteile oder Reparaturen durch
andere entstehen. Lassen Sie auf
dieser Garantiekarte das Kaufdatum
durch den Händler eintragen, oder
heften Sie die Kaufquittung dazu.
Bewahren Sie diese Garantiekarte
sorgfältig auf, denn ein Garantieanspruch
ist leider hinfällig, wenn sie
bei einer Reklamation nicht vorgelegt
worden kann.

Diese Garantie ist nur gültig, wenn
sie zusammen mit einem Kaufsbeleg
vorgewiesen wird (Ladenquittung).

Guarantee conditions

We grant a 36 month guarantee as
from purchase date. This guarantee
applies solely to the free replacement
of defective parts resulting from faulty
material or manufacturing. We point out
that guarantee is effective only if joined
to the apparatus to be repaired. Na
claim conceming a defect caused by
noncompliance with operation
instructions, mishandling, unsuitable
spare parts and unskilled repars will be
acknowledged. Plese ask your dealer
to fill in this guarantee at time of
purchase. Keep this certificate carefully
because your claim is valid only upon
presentation of this document.

This guarantee is valid only when
accompanied with the official shop

Conditions de garantie

Nous donnons une garantie de 36 mois
à compter de la date de vente. Cette
garantie est limitée exclusivement au
remplacement gratuit des pièces
défectueuses dont la cause est à
imputer à un défaut de matériel ou de
fabrication. Nous tenons à préciser que
la garantie n'est valable que si le
document de garantie est remis avec la
demande de réparation. Nous ne
pouvons pas accepter une réparation
en garantie lorsque la défectuosité est
à imputer au nonrespect des
prescriptions d'emploi, à une usure
normale, à l'emploi de pièces de
rechange non appropriées ou à des
réparations effectuées per tierces
personnes. Faites remplir cette carte de
garantie par le négociant ou attachez
votre quittance à ce document.
Conservez avec soin ce certificat car
votre droit de garantie en cas de
réclamation n'est valade que sur
présentation de ce document.

Cette garantie est valable seulement
si accompagnée d'une preuve
d'achat (Facture du revendeur).

Condizioni di garanzia

Riconosciamo una garanzia di 36 mesi
dalla date di acquisto. Questa garanzia
si limita esclusivamente alla sostituzi-
one gratuita dei pezzi difettosi la cui
causa è da imputare a difetti di materi-
ale o di fabbricazione. Desideriamo
precisare che la garanzia è valida
se la stessa accompagna l'apparecchio
per la riparazione. Non possiamo
accettare una riparazione in garanzia
quando il difetto è imputabile alla
non osservanza delle istruzioni d'uso,
manomissioni, all'impiego di pezzi di
ricambio non adatti o a delle riparazioni
eseguite da terzi. Fate compilare
questo certificato di garanzia dal vostro
negoziante al momento dell'acquisto
dell'apparecchio. Conservate con cura
questo certificato perché il vostre diritto
di garanzia è, valido solo contro
presentazione di questo documento.

Questa garanzia è valida solo se
assieme alla prova d'acquisto.
(Ricevuta del negoziante).

Condiciones de la Garantía

Ofrecemos una garantia de 36 ano
desde la fecha de compra, que será
aplicable única y exclusivamente a la
reposición gratuita de piezas
correspondientes a fabricación o
materiales defectuosos. Recuérdese
que la garantía sólo será efectiva si se
adjunta al aparato a reparar.
No se admitirá ninguna reclamación
por No se admitirá ninguna
reclamación por correctamente las
instrucciones de funcionamiento, o
bien debidos a un mal manejo, al uso
de piezas de recambio inapropiadas
o reparaciones efectuadas por
Por favor, pida a su vendedor que
cumplimente esta garantía en el
momento de la compra. Conserve
cuidadosamente este certificado ya que
cualquier reclamación sólo será válida
mediante la presentación de este

Esta garantla vale solo si presentada
junta a la prueba de cuempra (recibo
de pago).

Condiçoes de garantia

Reconhecemos uma garantia de
36 meses da data de compra. Esta
garantia é limitada exclusivamente à
substituição grátis de peças com
defeitos de material ou de fabricação.
Desajamos recordar que a garantia só
tem valor se acompanha o aparelho a
Nao podemos aceitar uma reparação
em garantia se o defeito resulta da falta
de atenção às instruçoes de uso,
manejo, errado, emprego de peças de
troca nao apropriadas ou a reparações
feitas por terceiros.
Queira pedir ao seu vendedor de
compilar este certificado de garantia ao
momento da compra do aparelho.
Guarde este documento com cuidado
pois a garantia só vem oferecida contra
a apresentação da certificado de
compra, além do recibo da loja.

Esta garantla só vale se for
apresentada junta à prova de
compra (recibo da loja)