E-flite UMX Sbach 342 3D BNF Basic - Manual (Page 6)

6
EN
Arming the ESC
You should bind your aircraft and transmitter before doing these tests. Move the controls on the transmitter
to make sure the aircraft control surfaces move correctly and in the proper direction.
Make sure all linkages move freely and that paint or decals are not adhered to them.
Control Direction Test
Control Centering
Before the fi rst fl ights, or in the event of an
accident, make sure the fl ight control surfaces
are centered. Adjust the linkages mechanically if
the control surfaces are not centered. Use of the
transmitter sub-trims may not correctly center the
aircraft control surfaces due to the mechanical
limits of linear servos.
1. Make sure the control surfaces are neutral
when the transmitter controls and trims are
centered. The transmitter sub-trim must
always be set to zero.
2. When needed, use a pair of pliers to carefully
bend the metal linkage (see illustration).
3. Make the U-shape narrower to make the
connector shorter. Make the U-shape wider
to make the linkage longer.
Centering Controls After First Flights
For best performance with AS3X, it is important
that excessive trim is not used. If the aircraft re-
quires excessive transmitter trim (4 or more clicks
of trim per channel), return the transmitter trim to
zero and adjust the linkages mechanically so that
the control surfaces are in the fl ight
trimmed position.
1 2 3
Lower throttle and throttle
trim to lowest settings.
Power on the Transmitter,
then wait 5 seconds.
Install the fl ight battery and
connect it to the ESC. Keep the aircraft
immobile on its wheels away
from wind for fi ve seconds.
Series of tones
Continuous LED
If you accidentally connect the battery while the throttle is fully raised, the ESC will enter programming
mode. Disconnect the battery immediately.
The AS3X system will not activate until the throttle stick or trim is increased for the fi rst time. Once the AS3X
is active, the control surfaces may move rapidly on the aircraft. This is normal.
AS3X will remain active until the battery is disconnected.
CAUTION: Always keep hands away from the propeller. When armed, the motor will turn the propeller
in response to any throttle movement.
Arming the ESC also occurs after binding as previously described, but subsequent connection of a fl ight
battery requires the steps below.