General Safety Notes - Multiplex Royal SX 9 Instructions Manual

ROYAL SX
If damp is present in any electrical device,
cease operations immediately, disconnect the
power source, and allow the unit to dry out
thoroughly, preferably with the case open.
This may take several days. After this, carry
out a thorough check of its operation. If you
have the slightest doubt, send the device to
an authorised MULTIPLEX Service Centre for
checking.
!
This radio control system may only be oper-
ated legally on particular channels / transmit-
ter frequencies, which vary from country to
country. In some regions official formalities
have to be completed before the system can
be used. Please read the notes included with
the system.
!
Always program a new model at home in
peace, and check all functions carefully. Make
sure you are familiar with the methods of
programming and using the transmitter be-
fore you operate your model outdoors.
!
Always keep to the correct sequence when
switching on and off, as this avoids the pos-
sibility of the power system switching itself
on unexpectedly: this can be a serious haz-
ard:
1. When switching on:
first switch transmitter ON,
then switch receiver ON,
then connect flight / drive battery
or switch power system ON.
2. When switching off:
first disconnect flight / drive battery
or switch power system OFF,
then switch receiver OFF,
then switch transmitter OFF.
3.1.

General safety notes

Build your model carefully:
 Install and adjust all control surface linkages in
such a way that the surfaces move smoothly and
freely, and are not stalled at maximum travel. Don't
limit servo travels at the transmitter; it is always
better to adjust the system mechanically, i.e. the
horns, levers and pushrods. Avoid lost motion
(sloppy linkages). These measures are essential in
order to minimise the load on the servos. This in
turn allows them to perform at their best, and they
will also last longer and operate more reliably.
 Provide effective protection from vibration to the
receiver, battery, servos and other RC and elec-
tronic components (danger of electronic com-
ponent failure!). Read and observe the advice in-
cluded in the appropriate operating instructions.
Of course, this also includes the avoidance of
vibration in the first place: balance propellers and
rotor blades before use, and replace them at any
sign of damage. Install I.C. engines on vibration-
absorbing mounts, and replace motors, engines
and motor parts which are damaged or do not run
true.
8
 Do not place leads under tension or kink them;
protect them from rotating parts.
 Avoid unnecessarily long or superfluous servo ex-
tension leads. Leads longer than about 30 to 50
cm should be fitted with separation filters (ferrite
ring # 8 5131 or separation filter lead # 8 5035),
and must be of adequate conductor cross-section
(voltage loss). We recommend at least 0.3 mm
 Do not shorten or coil up the receiver aerial. Never
deploy the aerial parallel to conductive parts such
as metal pushrods, or inside fuselages with a
shielding effect (made of or reinforced with carbon
fibre, metallic painted finish). Do not lay the aerial
on electrically conductive model components.
Whip aerials are recommended for large-scale
model aircraft. Read the instructions supplied
with your receiver!
 Ensure that the receiver power supply is of ade-
quate capacity. For servos up to about 40 Ncm
torque you can estimate the required battery ca-
pacity using the following formula:
Capacity [mAh] > Servo count x 200 mAh
If in doubt, always use the next larger size of bat-
tery unless weight or space make this impossible.
 Moving parts made of conductive materials (e.g.
metal linkage components or pushrods) must not
be allowed to touch each other. They produce
metal-to-metal "noise" interference which has an
adverse effect on radio reception.
 Interference caused by static charge and powerful
electrical or electro-magnetic fields should be
avoided by suitable suppression measures (e.g.
suppress brushed electric motors with suitable ca-
pacitors, fit petrol engines with shielded sparkplug
connectors, suppress ignition leads and ignition
units), and keep such items well away from the RC
system, the receiver aerial, wiring and batteries.
 Maintain an adequate distance between high-
current cables (e.g. electric power system leads)
and all the receiving system components. In par-
ticular, the leads between brushless electric mo-
tors and their speed controllers should be kept as
short as possible (guideline: max. 10 to 15 cm).
 The receiver can be shielded from interference
generated by speed controllers by the use of sup-
pressor filters (ferrite ring # 8 5146 or suppressor
filter lead # 8 5057).
Check your model at regular intervals:
 Ensure that control surfaces and their linkages
move freely, smoothly, and without lost motion.
 Ensure that pushrods, other linkages, hinges etc.
are stiff enough, and are in perfect condition.
 Carry out a visual check for fractures, cracks, pos-
sible shear points etc. on the model itself, and in its
components such as the RC and power systems.
 Check that all electrical leads and connectors are
in perfect condition, and are making sound contact.
2
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