Problem
Green LED on the aircraft
flashes rapidly then goes
off and the aircraft will not
respond to transmitter
(during binding)
LED on the flight control
board flashes rapidly and the
helicopter will not respond to
the transmitter
(after binding)
Helicopter vibrates or shakes
in flight
Random movements in flight Vibration
Tail oscillation/wag or poor
performance
Drift in wind
Model does not return to level
when the sticks are centered
Severe vibration
Parts Listings
Part #
BLH4400
Blade 150 FX
1 BLH4401
Flight Controller: 150 FX
2 BLH4402
Main Motor: 150 FX
3 BLH4403
Taily Assembly w/Motor: 150 FX
4 BLH4404
Main Rotor Hub and Shaft: 150 FX
5 BLH4405
Main Grip (2): 150 FX
6 BLH4406
Swashplate and Linkage Set: 150
7 BLH4407
Main Frame: 150 FX
EN
Possible Cause
Bind switch or button was not held
while transmitter was powered on
Aircraft or transmitter is too close to
large metal object, wireless source or
another transmitter
Less than a 5-second wait between first
powering on the transmitter and connecting
the flight battery to the helicopter
Flight battery or transmitter battery
charge is too low
Aircraft or transmitter is too close to
large metal object, wireless source or
another transmitter
Damaged rotor blades, spindle or blade
grips
Damaged tail rotor, tailboom, main gear
mesh, main shaft, loose bolts, vibration
Normal
Model was not initialized on a level
surface
Model was not taken off of a level surface
Main shaft is bent
Rotating component out of balance
Description
Power off transmitter and repeat bind process
Move aircraft and transmitter to another location
and attempt binding again
Leave the transmitter powered on. Disconnect and
reconnect the flight battery to the helicopter
Replace or recharge batteries
Move aircraft and transmitter to another location
and attempt binding again
Check main rotor blades and blade grips for cracks or chips.
Replace damaged parts. Replace bent spindle
Verify the receiver is properly attached to the helicopter. Inspect and
balance all rotating components. Verify the main shaft and tail rotor
are not damaged or bent. Inspect mechanics for broken or dam-
aged parts and replace as necessary
Inspect the tail rotor for damage. Inspect the tail boom for cracks.
Verify main gear mesh and ensure no tight spots in the mesh through
full rotation. Replace any damaged or worn components
The model will drift with the wind but should remain level in flight.
Simply hold the cyclic stick in the necessary position to keep the model
stationary. The model must lean into the wind to remain stationary. If
the model remains level then it will drift with the wind
Re-initialize the model on a level surface
Always lift off from a level surface
Check the main shaft for damage and replace if necessary
Check the main shaft, tail rotor, main rotor blades and main frame for
damage and replace as necessary
Part #
8 BLH4408
Main Gear Assembly: 150 FX
9 BLH4409
Replacement Servo: 150 FX
10 BLH4410
Main Rotor Blades (2): 150 FX
11 BLH4411
Replacement Fuselage: 150 FX
12 BLH4412
Screw Set: 150 FX
13 BLH4413
Tail Blades (2): 150 FX
14 BLH4414
Battery Mount: 150 FX
15 BLH4421
2S 320mAh LiPo: 150 FX
10
Solution
Description