E-flite Viking Model 12 280 BNF Basic - Manual (Page 13)

13
EN
Service of Power Components
Disassembly
CAUTION: Always disconnect the battery
before handling or adjusting the propeller
or motor. Failure to do so could result in
personal injury.
Propeller
1. Remove the 2 screws (A) from the spinner (B).
Carefully separate the spinner from the back
plate (C).
2. Remove the lock nut (D) from the propeller
shaft
(E), then remove the propeller (F) and
back plate.
3. Loosen the 2 setscrews (G) and remove the
washer
(H) before removing the propeller shaft
from the motor.
Motor and Firewall
1. Remove the 4 screws (I) and motor mount (J)
from the fuselage.
2. Disconnect the motor wires from the ESC.
3. Loosen the 2 setscrews (K) and remove the
motor
(M) from the motor mount.
Assemble in reverse order.
Assembly Tips
• Correctly align and connect the motor wire
colors with the ESC wires.
• Tools are required to loosen or tighten the screws
and the lock nut.
• Ensure the spinner is fully connected to the
spinner back plate for safe operation.
A B C
J
K
M H
G I
D
E
F
Troubleshooting Guide
AS3X
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-bend or clevis on control
linkages
Aircraft was moved after the fl ight battery
was connected and before sensors
initialized Disconnect and reconnect the fl ight battery
while keeping the aircraft still for 5 seconds
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) Propeller is unbalanced, causing excessive
vibration Remove propeller and rebalance or replace it
if damaged
Nut on prop shaft is too loose, causing
excessive vibration Tighten the prop shaft nut