Safety Notes - GRAUPNER mx-20 HoTT Bedienungsanleitung

SAFETY NOTES

Please read carefully!
We all want you to have many hours of pleasure in our mutual hobby of modelling, and safety is an important aspect of this. It
is absolutely essential that you read right through these instructions and take careful note of all our safety recommendations.
We also strongly recommend that you register without delay at http://www.graupner.de/en/service/product_registration, as this
ensures that you automatically receive the latest information relating to your product by e-mail.
If you are a beginner to the world of radio-controlled model aircraft, boats and cars, we strongly advise that you seek out an ex-
perienced modeller in your fi eld, and ask him or her for help and advice. If you ever dispose of this transmitter, these instructions
must be passed on to the new owner.
Application
This radio control system may only be used for the purpose for which the manufacturer intended it, i. e. for operating radio-
controlled models which do not carry humans. No other type of use is approved or permissible.
Safety notes
SAFETY IS NO ACCIDENT
and
RADIO-CONTROLLED MODELS
ARE NOT PLAYTHINGS
Even small models can cause serious personal injury and damage to property if they are handled incompetently, or if an accident
occurs due to the fault of others. Technical problems in electrical and mechanical systems can cause motors to rev up or burst
into life unexpectedly, with the result that parts may fl y off at great speed, causing considerable injury. Short-circuits of all kinds
must be avoided at all times. Short-circuits can easily destroy parts of the radio control system, but even more dangerous is the
acute riskof fi re and explosion, depending on the circumstances and the energy content of the batteries.
Aircraft and boat propellers, helicopter rotors, open gearboxes and all other rotating parts which are driven by a motor or engine
represent a constant injury hazard. Do not touch these items with any object or part of your body. Remember that a propeller
spinning at high speed can easily slice off a fi nger! Ensure that no other object can make contact with the driven components.
Never stand in the primary danger zone, i. e. in the rotational plane of the propeller or other rotating parts, when the motor is
running or the drive battery is connected. Please note that a glowplug engine or electric motor could burst into life accidentally if
the receiving system is switched on when you are transmitting the transmitter.
To be on the safe side, disconnect the fueltank or the fl ght battery. Protect all electronic equipment from dust, dirt, damp, and
foreign bodies. Avoid subjecting the equipment to vibration and excessive heat or cold. Radio control equipment should only be
used in "normal" ambient temperatures, i. e. within the range -15°C to +55°C.
Avoid subjecting the equipment to shock and pressure. Check the units at regular intervals for damage to cases and leads. Do
not re-use any item which is damaged or has become wet, even after you have dried it out thoroughly. Use only those compo-
nents and accessories which we expressly recommend. Be sure to use only genuine matching Graupner connectors of the same
design with contacts of the same material.
When deploying cables ensure that they are not under strain, are not tightly bent (kinked) or broken. Avoid sharp edges, as they
can chafe through insulating materials.
Before you use the system, check that all connectors are pushed home fi rmly. When disconnecting components, pull on the
connectors themselves – not on the wires. It is not permissible to carry out any modifi cations to the RC system components, as
any such changes invalidate both your operating licence and your insurance cover.
Installing the receiving system
In a model aircraft the receiver must be packed in soft foam and stowed behind a stout bulkhead, and in a model boat or car it
should be protected effectively from dust and spray. The receiver must not make direct contact with the fuselage, hull or chassis
at any point, otherwise motor vibration and landing shocks will be transmitted directly to it. When installing the receiving system in
a model with a glowplug or petrol engine, be sure to install all the components in well-protected positions, so that no exhaust gas
or oil residues can reach the units and get inside them. This applies above all to the ON / OFF switch, which is usually installed
in the outer skin of the model.
Secure the receiver in such a way that the aerial, servo leads and switch harness are not under any strain. The receiver aerial
should be at least 5 cm away from all large metal parts and any wiring which is not connected directly to the receiver. This
includes steel and carbon fi bre components, servos, electric motors, fuel pumps, cabling of all kinds, etc.. Ideally the receiver
should be installed well away from any other installed equipment in the model, but in an easily accessible position. Under no
circumstances allow servo leads to run close to the aerial, far less coiled round it!
Ensure that cables are fastened securely, so that they cannot move close to the receiver aerial when the model is fl ying.
Deploying the receiver aerial(s)
The receiver and its aerials should be installed as far away as possible from all kinds of power system. If your model has a carbon
fi bre fuselage, the aerial tips must always be deployed outside the fuselage. The orientation of the aerial(s) is not critical, but
we recommend installing them vertically (upright) in the model. If the receiver features aerial diversity (two aerials), the second
aerial should be arranged at 90° to the fi rst.
Installing the servos
Always install servos using the vibration-damping grommets supplied. The rubber grommets provide some degree of protection