Horizon Hobby UMX Citation Longitude 30mm EDF Twin Instruction Manual Download Page 13

13

EN

AS3X Troubleshooting Guide

Troubleshooting Guide

Problem

Possible Cause 

Solution

Aircraft will not respond to 
throttle but responds to other 
controls

Throttle stick and/or throttle trim too high

Reset controls with throttle stick and throttle 
trim at lowest setting

Throttle channel is reversed

Reverse throttle channel on transmitter

Motor disconnected from receiver

Open fuselage and make sure motor is 
connected to the receiver

Extra motor noise or extra 
vibration

Damaged rotor or motor

Replace damaged parts

Rotor out of balance

Balance or replace the rotor

Reduced fl ight time or 
aircraft underpowered

Flight battery charge is low

Completely recharge fl ight battery

Flight battery damaged

Replace fl ight battery and follow fl ight battery 
instructions

Flight conditions may be too cold

Make sure battery is warm before use

Battery capacity too low for fl ight conditions Replace battery or use a larger capacity battery

LED on receiver fl ashes 
and aircraft will not bind to 
transmitter (during binding)

Transmitter too near aircraft during 
binding process

Power off transmitter, move transmitter a 
larger distance from aircraft, disconnect and 
reconnect fl ight battery to aircraft and follow 
binding instructions

Bind switch or button not held long enough 
during bind process

Power off transmitter and repeat bind process. 
Hold transmitter bind button or switch until 
receiver is bound

LED on receiver fl ashes 
rapidly and aircraft will not 
respond to transmitter
(after binding)

Less than a 5-second wait between fi rst 
powering on transmitter and connecting 
fl ight battery to aircraft

Leaving transmitter on, disconnect and 
reconnect fl ight battery to aircraft

Aircraft bound to different model memory 
(ModelMatch

 radios only)

Select correct model memory on transmitter 
and disconnect and reconnect fl ight battery 
to aircraft

Flight battery/transmitter battery charge is 
too low

Replace/recharge batteries

Control surface does not move

Control surface, control horn, linkage or 
servo damage

Replace or repair damaged parts and 
adjust controls

Wire damaged or connections loose

Do a check of wires and connections, connect 
or replace as needed

Flight battery charge is low

Fully recharge fl ight battery

Control linkage does not move freely

Make sure control linkage moves freely

Controls reversed

Transmitter settings reversed

Adjust controls on transmitter appropriately

Motor loses power

Damage to motor or power components

Do a check of motor and power components 
for damage (replace as needed)

Problem

Possible Cause

Solution

Control surfaces not at 
neutral position when 
transmitter controls are 
at neutral

Control surfaces may not have been 
mechanically centered from factory

Center control surfaces mechanically by 
adjusting the U-bends on control linkages

Aircraft was not kept immobile for 5 
seconds after battery was plugged in

Keep the aircraft immobile for 5 seconds after 
plugging in the battery

Model fl ies 
inconsistently from 
fl ight to fl ight

Aircraft was not kept immobile for 5 
seconds after battery was plugged in

Keep the aircraft immobile for 5 seconds after 
plugging in the battery

Trims are moved too far from 
neutral position

Neutralize trims and mechanically adjust 
linkages to center control surfaces

Controls oscillate in 
fl ight, (model rapidly 
jumps or moves)

Rotor is unbalanced, causing 
excessive vibration

Remove rotor and motor. Check motor shaft for 
straightness and replace rotor if damaged

Summary of Contents for UMX Citation Longitude 30mm EDF Twin

Page 1: ...Instruction Manual Bedienungsanleitung Manuel d utilisation Manuale di Istruzioni UMX Citation Longitude 30mm EDF Twin...

Page 2: ...it could cause serious injury or even death Never operate your model with low transmitter batteries Always keep aircraft in sight and under control Always use fully charged batteries Always keep the t...

Page 3: ...eiver Dual ESC SPMAR6430T Servo 2 3 Gram Linear Long Throw Offset Servos SPMSA2030LO Transmitter Spektrum DSM2 DSMX with dual rates DX4e and up Battery 800mAh 3S 11 1 V 30C Li Po 18AWG JST EFLB8003SJ3...

Page 4: ...g button or switch instructions 8 After 5 to 10 seconds the receiver status LED will turn solid indicating that the receiver is bound to the transmitter If the LED does not turn solid refer to the Tro...

Page 5: ...ll landing gear installed Adjust as needed by sliding the battery forward or back 3 Lower the throttle and throttle trim to the lowest settings on your transmitter Power on your transmitter then wait...

Page 6: ...urely restrained in case of accidental throttle activation 1 Power on the transmitter 2 Power on the aircraft 3 Hold both transmitter sticks to the inside bottom corners and toggle the Gear switch 5 t...

Page 7: ...m per channel return the transmitter trim to zero and adjust the linkages mechanically so that the control surfaces are in the flight trimmed position Control Centering Control Horn Settings Aileron E...

Page 8: ...ators should move down which will cause the aircraft to pitch down Ailerons 1 Move the aileron stick to the left The Left aileron should move up and the Right aileron down which will cause the aircraf...

Page 9: ...ection indicated in the graphic If the control surfaces do not respond as shown do not fly the aircraft Refer to the receiver manual for more information Once the AS3X system is active control surface...

Page 10: ...gear wire above the stop 2 Gently pull the landing gear away from the clip When needed assemble in reverse order Nose Gear 1 Gently pull the nose gear away from the plastic nose gear mount located on...

Page 11: ...unt of up elevator and steer with the rudder When the aircraft lifts off climb gently and adjust the trim for level flight Do not trim the aircraft while SAFE Select is active Always trim the aircraft...

Page 12: ...ccess the motor wires 3 Remove 2 rotor screws A from the rotor with a 1 5 m screw driver or wrench 4 Remove the rotor B from the motor shaft 5 Disconnect the motor wire connector from the ESC receiver...

Page 13: ...r on disconnect and reconnect flight battery to aircraft Aircraft bound to different model memory ModelMatch radios only Select correct model memory on transmitter and disconnect and reconnect flight...

Page 14: ...Travel adjust to 100 or less and or set sub trims to zero and adjust linkages mechanically Replacement Parts List Recommended Parts List Part Description EFLDF30 Ducted Fan Unit 6 Blade 30mm EFLDF30R...

Page 15: ...ce you in the event that you may need any assistance For questions or assistance please visit our website at www horizonhobby com submit a Product Support Inquiry or call the toll free telephone numbe...

Page 16: ...the limits for a Class B digital device pursuant to part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a residential installation This...

Page 17: ...point for the recycling of waste electrical and electronic equipment The separate collection and recycling of your waste equipment at the time of disposal will help to conserve natural resources and...

Page 18: ...C The Spektrum trademark is used with permission of Bachmann Industries Inc Cessna Citation Longitude are trademarks of Textron Innovations Inc and are used under license to Horizon Hobby LLC All othe...

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