Caution, Warning, Nicd battery charging precautions – Futaba 4VF User Manual
Page 6: Prohibited items, Mandatory items, For safety

FOR SAFETY
CAUTION
PROHIBITED ITEMS
When placing the transmitter on the
ground during flight preparations, be
sure that the wind cannot knock it over.
If it is knocked over, the throttle stick may be
pushed to full high and the engine will race and
create a dangerous situation.
Do not touch the engine, motor,
and FET amp during and imme-
diately after use.
They are hot and will cause a burn.
MANDATORY ITEMS
When turning on the power switch
After setting the transmitter throttle stick to
maximum slow,
1. Turn on the transmitter power switch,
2. Then turn on the receiver power switch.
When turning off the power switch
After stopping the engine,
1. Turn off the receiver power switch,
2. Then turn off the transmitter power switch.
If the power switch is turned
off in the opposite order, the
engine may go to full throttle
unexpectedly and cause an
injury.
*Maximum slow: Direction in
which the engine or motor
runs at the slowest speed.
Power ON
Power OFF
Install frequency
board
When adjusting the digital
proportional R/C set, always
stop the engine, except when
necessary.
If the engine suddenly goes to high
speed, it may cause an injury.
When flying, always install
the frequency board to the
transmitter antenna.
When the fre-
q u e n c y w a s
changed, also
change the fre-
quency board.
Use the
special charger
WARNING
MANDATORY ITEMS
Always charge the nicd
battery before each flight.
If the battery goes dead during
flight, the plane may crash.
Charge the digital proportional R/C nicd bat-
tery with the special charger, or digital propor-
tional R/C quick charger, sold separately.
Overcharging may cause burns,
fire, injury, blindness, etc. due to
overheating, breakage, electro-
lyte leakage, etc.
NICD BATTERY CHARGING PRECAUTIONS