Futaba G501 - Manual (Page 2)

Mounting precautions
The amount of improvement of gyro performance
has a considerable effect on the fuselage vibration
level or the size, type, linkage method, looseness,
etc. of the tail rotor.
The use of a tale rotor drive tube or other part with a high
torsion performance for the tail drive is recommended.
Since a higher gain than usual can be used then the tail
rotor is more effective, the load on the tail is also greater.
Therefore, take the strength of the tail into account during
inspection and adjustment.
Gyro mounting
Mount the gyro so that it is on a straight line with the axis you
want to stabilize as shown in the mounting example
In this case, stick thick double-sided tape (use the
double-sided tape supplied with the gyro) to the
entire bottom of the sensor so that unwanted vibra-
tions of the fuselage are not directly transmitted to
the sensor and the gyro is fastened firmly to the
fuselage.
Mounting examples
Control amp mounting
Wrap the control amp in sponge and mount it the same as the
receiver.
Control box mounting
Modify the aircraft to match the mounting position hole and
mount the control box, or fasten the control box to the aircraft
with double-sided tape.
Mount the control box where vibration and exhaust
are small.
CONNECTIONS
Gyro sensor
"When adjusting the linkage, always check the
polarity of the gyro output. If the polarity is opposite,
switch it with the direction select switch.
Servo
*Servo controlled by gyro.
To receiver rudder channel
Connector A (black) (helicopter yaw axis stabilization)
To receiver channel 5
(sensitivity switching channel)
Adjust low sensitivity with the "L"
side sensitivity trimmer and high
sensitivity with the "H" side
sensitivity trimmer. When the
direction of the sensitivity switch is
opposite, set the direction using the
reverse function for gyro channel.
This is usually CH.5.
Control amp
Gyro output polarity switch
Connector B (red)
PRECAUTIONS WHEN TURNING ON THE RECEIVER POWER
Never move the aircraft for four or five seconds
after turning on the gyro power (shared with re-
ceiver).
Since initialization is automatically performed inside the
gyro immediately after the power is turned on, if the aircraft
is moved at that time, the neutral position will change. In this
case, turn on the power again.
At this time, the rudder servo (servo controlled by gyro)
moves to the home position after the servos on the other
channels, but this is normal.
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