Rate gyro FP-G152
Fig.
21
Connected servo (rud-
derservo forhelicopter)
neutralposition trim-
mer (Thistrimmer is
operative even when
the controlbox power
switch isset to OFF.)
Gyro outputpolarityswitch
Remove
these
screws.
and
remove
the
case.
Gyro body
Connect to receiver
retractor
auxiliary
channel
(forgyro
sensitivityswitching)
forReceiver
Controlamp
Control box
Gyro output
trimmer
Jumper
connector
for RudderServo
Five battery pack 6V connector Motor regulated
power supply.(Insertthejumper connectorswhen
the power supplyisshared with the receiver.)
•Connect the servos and switches firmly as
shown in Fig. 20. Then extend thetransmitter
and receiverantennas fully.
•Set the transmitterpower switch to ON. then
set the receiverpower switchto ON. The servos
stop near theneutralposition. Operatethe
transmittersticksand check ifthe correspond-
ingservos faithfullyfollow operation of the
sticks.
•Aftersettingthe pushrods at the servo horns,
check thatthe directionof operationof the
transmittersticksand the directionof opera-
tion of the rudders arethe same.
•Operateeach servohorn overits entire operat-
ing range and check if the pushrod binds, or is
too loose. Applyingunreasonableforceto the
servo
horn
will
adversely
affectthe
servo
and
quickly drain the batteries.Alwaysmake the
operatingwidth of each rudder somewhatlarger
than thefullstroke(includingtrim)of the
servohorn. Adjusttheservohorns so that
operate
smoothly
even
when the
trim
lever
and
stickleverare operated simultaneouly inthe
same direction.
•Be alertfornoise.
Ifengine vibrationcauses metal parts to touch,
noise willbeproduced and the receiverand
servosmay operateincorrectly.We recommend
the use of noiseless parts.
•When installingthe switch,cut a rectangular
hole somewhat larger than the full stroke of the
switch and install the switch so itmoves smo-
othly fromON to OFF.When the switch is
mounted inside the fuselageand is turned ON-
OFF withwire,installthe switchmount as
describedabove.Installthe switchwhereitwill
notcome into direct contact with engine oil,
dust, etc.
•Even though the receiver antenna is long.
do
not cutor bundle it.
•The
servos,
Ni-Cad
battery,switches,extension
cords, and crystalsofFP-7FGHarethe same
as those of the high-quality JSeries.The crystals
are extremelypreciseand areidentifiedby
color(redand green).Use Tx and Rxcrystals
of the same color.
•A sparehorn is supplied. Useitas needed.
•Wrap the receiverinsponge rubber. Place the
receiverina plasticbag and wrapa rubber band
around the open end of the bag to waterproof
and dustproofthe
receiver.
Do
the
same
with
thereceiver/servobattery.
•Use the rubber bands wrapped
around the
receiverto hold the servoand switchleads.
•Aftermounting iscomplete, recheck each
part,then make the transmitter antenna as
short as possible, extendthe receiverantenna
fully,
and
operate
the
set
from
a
distance
of
20m to 30m. The movement of each rudder
(servo)should faithfullyfollowthe operation
of each stickof the transmitter.
11