Assembly Precautions - FUTABA 4YWD Instruction Manual

WARNING
Check the receiver, servos, and battery connectors, to be sure they are firmly
connected.
If a connector is not fully inserted, vibration may cause the connector to work loose
while the model is operating. This will result in loss of control.
Operate each servo horn over its full stroke and check
to see that the linkage does not bind or is not too
loose.
Excessive force applied to the servo horn by binding or
poor installation may lead to servo problems and result in
loss of control.
Isolate the receiver from vibration by attaching to the chassis or mounting plate
with thick double sided tape.
Any contact with moisture (water or condensation) may cause receiver malfunction
and loss of control.
Use the servo horn screw.
When the servo horn comes off, it becomes loss of control.
Keep all devices that emit high frequency noise, such as motors, batteries, and
wiring that handles heavy current loads, at least 1/2 inch away from the receiver.
High frequency noise will cause a decrease in operating range and could cause loss of
control.
Install electronic speed controller heat sinks as well as other components that
conduct electricity must not contact with aluminum, carbonfiber or other materials
that conduct electricity.
If, for example, the electronic speed controller come loose while the model runs, and
touches aluminum chassis, a short circuit may occur and it cause irreparable damage
to the system as well as loss of control.
Noise suppression capacitors should be installed on almost all motors.
If the proper capacitors are not installed, high frequency noise will reduce range
and cause loss of control along with various other problems.
Inspect all linkage installations and any point where metal could come in contact
with other metal parts. Make sure these parts do not touch other metal parts under
vibration.
Should a linkage or other metal parts come in contact with other metal parts under
vibration, the high frequency noise generated by this contact will cause interference
and possible loss of control.
CAUTION
Do not disassemble any part of this system that is not specified in the instruction
manual.
Futaba will not be responsible for any damage due to improper disassembly of any
part of the radio control system.
14

Assembly Precautions

Caution ！
A whining noise indicates
that the steering servo is
improperly set.