Futaba 2PKA AM - Manual (Page 5)

• A common power supply regulator and diode may also be supplied with the speed controller, depending on the vehicle kit. Since
they cause a voltage drop, always remove them.
• Set the transmitter power switch to ON, then set the receiver power
switch to ON. The servos stop near the neutral position. Operate the
transmitter sticks and check if each servo faithfully follows opera-
tion of the sticks.
• Connect the pushrod to each servo horn, then check if the direc-
tion of travel of each servo matches the transmitter operation.
• Operate each servo over its full travel and check if the pushrod binds
or is too loose. Applying unreasonable force to the servo horn will
adversely affect the servo and quickly drain the battery. Be especial-
ly careful when using 8.4V.
• Always make the full stroke (including trim) of the servo horns
somewhat larger than the full travel. Adjust the servo horns so that
they move smoothly even when the trim lever and stick are operated
simultaneously in the same direction.
• Be alert for noise.
Always solder a noise killing capacitor to the running motor. If
metal pans touch each other due to vibration, noise will be generat-
ed and cause the receiver servos to operate erroneously. We recom-
mend the use of noiseless parts.
• Even though the receiver antenna wire is long, do not cut or bundle
it. The range of the radiowaves will be shortened.
Receiver antenna
wire
— Wood screw
ten
cB
-Rubber bushing
-Gromet
Fig. 14
Fig. 13
• Install the servos firmly. Install
the servo to the servo tray as
shown in the figure. In other
cases, install the servo as des-
cribed in the model manufac-
turer's manual.
• A spare horn is provided. Use it as required.
• Wrap the receiver in sponge rubber and wrap rubber bands around
the sponge rubber. Mount the receiver so it is not exposed to vibra-
tion, does not touch the frame, and does not move.
• When the receiver is installed on a board or used where it may be
splashed with mud and water, place it in a plastic bag, etc. and
wrap a rubber band around the open end of the bag to waterproof
and dustproof the receiver. After use, remove the receiver from the
bag to prevent condensation.
• Use the rubber bands wrapped around the receiver to hold the
servo and switch leads.
• After mounting is complete, recheck each part, then check the
transmitting range by making the transmitter antenna as short as
possible and extending the receiver antenna fully and operating the
set from a distance of 20m to 30m. The movement of each servo
should follow the movement of the transmitter sticks.
• The crystal can be changed from the outside of the receiver case.
Always use a Futaba transmitter and receiver crystal pair as the
replacement crystals.
CONVERSION TO NICAD SYSTEM
FP-2PKA ONLY
To use a nicad battery with this set, modify
the set with the optional PBPK-11 (2PKA
nicad battery conversion set).
(1) Remove the battery cover and discon-
nect the nine contacts with needle nosed
pliers at shown in Fig. 15. Then install
the transmitter NT-8LP nicad battery
and install the
battery cover.
Fig. 15
Transmitter NT-8LP
nicad battery.
(2) Charging and how to use
(a) Connect the power plug of the FBC-8B
(4) battery charger to the transmitter
charging connector. Connect the 3PC red
male connector to the receiver and servo
NR-4H nicad battery. Plug the battery
charger into a 120 VAC outlet as shown
in Fig. 16.
(b) Normally recharge the battery for about
15 hours. If the battery has not been
used for some time or is new, discharge
and recharge it 2 or 3 times before use.
(c) If the battery is left discharged for a long
time, its capacity will decrease and the
life of the battery will be shortened.
After use, recharge the battery before
storing it.
(d) Always recharge the battery before use.
(e) A fully charged battery can be used for
about two hours at 10 minutes/flight.
Notes: FBC-8B (4) (1) First, connect to TX Nicd and red lamp goes on.
(2) Then, connect to RX Nicd after connecting, L,E,D, changes color from red to greenish
red (orange) which indicates that both TX and RX Nicds are being charged.
(3) In case of separate charging, L,E,D, color will be: RX Nicd — Green
TX Nicd - Red