Futaba 4NBL AM - Manual (Page 4)

RECEIVER FP-R114H, SERVO FP-S1480R FP-S133(IN CASE OF ENGINE POWERED PLANE OR GLIDER)
RECEIVER WITH LINEAR CONTROLLER MCR-4A, SERVO FP-S133(IN CASE OF ELECTRIC POWERED PLANE)
Receiver, servos, switches, and
battery holder connections
SSW-J
Power switch
Charging plug
In case of glider
Aileron
servo
Elevator
servo
Extension
cord
Three servos are
supplied as stand-
ard. (In case of
glider, two servos
are supplied as
standard.)
In case of engine
powered plane
Antenna wire
The parts en-
closed by the
dotted lines must
be purchased
separately.
Rudder
servo
Throttle
servo
Pay careful attention to the polarity
of the connector.
Fig. 7
MCR-4A, servo, and battery connection
Idle point trimmer
Power switch
Motor terminal
Antenna wire
Receiver crystal
• The MCR-4A can control 280 class to 540 class motors.
•6V (5 batteries), 7.2 V (6 batteries), or 8.4 V (7 batteries) NiCd
battery pack can be used with the MCR-4A. (When using a 540
class, etc. motor, purchase an NiCd battery pack connector off the
market. Be sure that the (+) and ( — ) polarities are correct. If the
(+) and ( — ) connections are reversed, the MCR-4A may be dam-
aged beyond repair.)
Aileron servo (CH1)
Elevator servo (CH2)
Rudder servo (CH4)
Extension cord
Start switch
NiCd
battery pack
The parts inside the dotted
lines are not included.
Always use a noise killer
capacitor on the electric motor.
Drive motor
Fig. 8
The idle point trimmer sets the drive motor idling point.
• Set the transmitter throttle
servo reversing switch to the
normal position.
• Set the transmit throttle
stick to the slowest position
(stick all the way back ),
turn on the MCR-4A power
switch, press the start switch,
and set the idle point trim-
mer to the point at which
the motor idles.
• If the start switch is not
pressed, the drive motor will
not run.
• Turn the idle point trimmer slowly and without too much
force.
• If the drive motor rotates in the reverse direction, change
the connection of the lead wire from the MCR-4A at the
motor terminals.
• Before pressing the MCR-4A start switch, check that the
transmitter throttle stick is in the slowest position. Starting
the drive motor suddenly is dangerous. This also applies
when the idle point trimmer is changed. Be very careful.
• If an overcurrent flows continuously in the motor for some
reason, the heat protector will operate and stop the motor.
When the temperature drops after a short time, the motor
can be controlled once more.
Correct the cause of the continuous overcurrent before using
the set.
• The heat protector does not protect the set against momen-
tary overcurrent caused by shorting of the drive motor lead
wires, etc.
• If the drive motor is stopped by the "autocut" function dur-
ing flight, land the aircraft immediately and safely.