Manual
MODSTER BO-105
16 www.modster.at
Abnormal Problem Solving Method
Problem
Possible Cause
Solution
1
Chopper power on. Taillight
on Blinking, no response to
operation.
The helicopter without bind
with the transmitter.
Bind the transmitter again
2
After turning on the chopper
power switch, the chopper
Nothing happened.
Check the power supply of
helicopter and transmitter;
Check the battery’s voltage of
the helicopter and transmitter;
Batteries had a poor
connecting.
Check the installation site of
Transmitter’s batteries;
Use full voltage batteries;
Install the batteries again;
Confirm the batteries have a
good connecting.
3
Push the throttle but the
motor not at work, the
receiver’s signal light keep
flashing
Helicopter’s battery has a low
voltage;
The lipo battery has a poor
connecting.
Charge the battery or change
a full charge battery;
Connect the battery with
receiver again.
4
Turn on the helicopter after
bind, the main blade can
rotate but the helicopter can
not take off
Chopper battery low, no
paddles,Loose or stuck
Charge the battery or replace
it with a fully charged one,
The propeller will be reinstal-
led and turned smoothly.
5
The helicopter is violently
shaking
Main rotor deformed
cross shaft bent tail rotor bent
Blade clamp screws are too
tight to cause the main blade
can not rotate
Change the main blade;
Change the cross shaft;
Change tail rotor;
Loose the blade clamp screw.
6
Helicopter spinning to left
after take off.
Tail motor has a poor power;
The blades loose;
Tail motor was broken.
Check the connection of tail
blade and motor shaft. if loose,
change tail blade or tail motor.
7
The helicopter has a little
yaw:
made a operational error of the
trimming button
1.According to its yaw directi-
on, push the trimming button
in the opposite direction;
2.Reset the hovering point.
8
The helicopter has a serious
yaw.
Check the servo if work pro-
perly; Check the swash plate;
Check the rod sticks if loosing.
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