24i / 28i Engine Manual
more infos: www.3w-modellmotoren.de
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Loose propeller bolts can also lead to sheered propeller bolts further leading to accidents
and crashes. Check these bolts before starting your engine.
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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.
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Do not put your finger(s), any items, or any other parts of the body into the rotating propeller.
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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.
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Make sure that no gasoline will be splashed into the hot muffler(s).
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Only 3W mufflers, or mufflers authorized by 3W with an acceptance (test) number, should
be used.
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Only 3W-ignition systems should be used for proper operation.
Important:
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!
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Check the propeller bolts for tightness
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Check that the spinner is firmly attached
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Check the propeller for possible damage
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Check to be sure you have the throttle position at idle
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Check all batteries
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Check servo functions
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Check to see that the ignition switch is OFF
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Check pressure (6-8 bar) system of retract (if applicable)
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Check all linkages for play
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Check your wheels for possible damage and easy running
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Check the wing mounting for tight fit and proper attachment
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Check the canopy for tight fit and proper attachment
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When starting the engine one person (minimum) has to hold the model
