55
Receiver power supply
3. Mount servos on rubber bushes/spacers with hol-
low brass bearings to protect them from vibration.
Do not tighten the fastening screws down too tight
as this would negate the vibration protection to be
provided by the rubber bush/spacer. Only when
servo fastening screws are properly tightened will
this arrangement provide security and vibration pro-
tection for your servos. The figure below shows how
a servo is mounted properly. The brass bearings are
to be pushed into the rubber bushes/spacers from
below.
Servo mounting lug
Retaining screw
Rubber grommet
Tubular brass spacer
4. Servo arms must be free to move throughout their
entire range of motion. Pay attention that there are
no objects which could hinder servo arm motion.
5. Connect the power supply cable or the receiver as
well as the power connection cable as shown be-
low at the receiver,
... but never so:
CAUTION:
At the receiver GR-24 servos or other compo-
nents can be connected horizontally only at the
terminals 8 to 10. Under no circumstances
may be connected across the other terminals 1 to 7,
11 and 12 components and especially the receiver bat-
tery as shown demonstratively in the figure above. The
same applies to the terminals 1 ... 6 of the receiver GR-
12L. A plug in “cross” over 2 to 3 terminals away, im-
mediately leads to a short circuit of the receiver battery;
the destruction of possibly connected components and
the immediate loss of warranty claims.
The sequence in which servos are connected to the
receiver depends on the type of model. Follow the con-
nection layouts provided for this on pages 65 and
67.
Also observe the safety notices provided on pages
4 … 10.
In order to prevent uncontrolled movements of
servos connected to the receiver during startup
always rst switch on the transmitter
and then the receiver
and when finished with operation
rst switch off the receiver
and then the transmitter.
When programming the transmitter, be sure that elec-
tric motors cannot start running without control or that
a combustion motor equipped with automatic starting
cannot start up unintentionally. To be safe, disconnect
the receiver’s drive battery or, in the case of a combus-
tion motor, disconnect the fuel supply.
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