EN
Ultimate 3D
16
CAUTION:
Always disconnect the flight battery before performing
motor service.
Disassembly
1. Remove the screw (
A
), Spinner (
B
), Propeller nut (
C
) and washer (D).
2. Remove the propeller (
E
), spinner backplate (
F
) backplate (
G
), and collet (
H
)
from the motor shaft.
3. Pull to remove 2 screws (
I
) from the cowling (
J
), and remove the cowling.
4. Remove the 4 screws (
K
) from the motor mount (
L
), and remove the motor
and motor mount from the fuselage.
5. Disconnect the motor wires from the ESC wires.
6. Remove the 4 screws (
M
) and motor (
N
) from the motor mount.
Assembly
Assemble in reverse order.
• Correctly align and connect the motor wire colors with the ESC wires.
• Tighten the prop nut by using a wrench
Problem
Possible Cause
Solution
Oscillation
Damaged propeller or spinner
Replace propeller or spinner
Imbalanced propeller
Balance the propeller. For more information, view John Redman’s propeller balancing video at
www.horizonhobby.com
Motor vibration
Replace parts or correctly align all parts and tighten fasteners as needed
Loose receiver
Align and secure receiver in fuselage
Loose aircraft controls
Tighten or otherwise secure parts (servo, arm, linkage, horn and control surface)
Worn parts
Replace worn parts (especially propeller, spinner or servo)
Irregular servo movement
Replace servo
Inconsistent flight
performance
Trim is not at neutral
If you adjust trim more than 8 clicks, adjust the clevis to remove trim
Sub-Trim is not at neutral
No Sub-Trim is allowed. Adjust the servo linkage
Aircraft was not kept immobile for
5 seconds after battery connection
With the throttle stick in lowest position. Disconnect battery, then reconnect battery and keep the
aircraft still for 5 seconds
Incorrect response
to the AS3X Control
Direction Test
Incorrect direction settings in the
receiver, which can cause a crash DO NOT fly. Correct the direction settings (refer to the receiver manual), then fly
1 Disconnect the flight battery from the ESC (Required for Safety and
battery life).
2 Power OFF the transmitter.
3 Remove the flight battery from the aircraft.
4 Recharge the flight battery.
5 Repair or replace all damaged parts.
6 Store the flight battery apart from the aircraft and monitor the battery
charge.
7 Make note of the flight conditions and flight plan results, planning for
future flights.
Troubleshooting Guide AS3X
Motor Service
Post Flight
L
G
F
E
D
C
A
B
I
J
K
M
N
H
Wiring not shown
The Ultimate 3D is equipped with the Avian 60 amp SMART ESC with reversing.
Reversing the motor can be helpful when taxying or for shortening ground roll
after a landing.
Simply assign a switch to channel 7 (aux2) of your transmitter. Flip the switch
to reverse the direction of the motor.
(The SRXL connection of the SMART ESC
to the AR637TA receiver allows the ESC to receive combined input from both
channel 7 and channel 1 (throttle).)
IMPORTANT:
The motor will draw more current when spinning the propeller in
the reverse direction as the propeller is less efficient and creates more drag
which can reduce flight time.
IMPORTANT:
Thrust reversing requires a Spektrum receiver with SMART
throttle such as the AR637TA and a spektrum transmitter with a minimum of 7
channels. The Avian ESC is also backwards compatible with receivers that only
provide a PWM output.
Thrust Reversing
(optional)
