Champ RTF Manual

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7. Place the nylon nut on the back of the prop shaft. Make sure
the small brass washer is between the nylon nut and the
gearbox. Spin the prop and spur gear counterclockwise.
The nylon nut will thread onto the prop shaft.
8. While holding the nylon nut in place, gently turn the spur
gear counterclockwise to ensure the nut is snug. Make sure
not to over-tighten as this will cause binding in the gearbox
and reduce performance.
9. Tape the fuselage back together with clear tape.
Replacement Parts
HBZ4904 . . . . . . . .Prop Shaft
HBZ4913 . . . . . . . .Decal Sheet
HBZ4918 . . . . . . . .Main Landing Gear Set
HBZ4920 . . . . . . . .Main Wing
HBZ4921 . . . . . . . .Pushrods with Accessories
HBZ4929 . . . . . . . .Gearbox without Motor
HBZ4930 . . . . . . . .Gearbox with Motor
HBZ4931 . . . . . . . .Complete Tail
HBZ4952 . . . . . . . .Fuselage with Electronics
HBZ4967 . . . . . . . .Bare Fuselage
EFLB1501S .......150mAh 1S 3.7V Li-Po Battery
EFL9051 .........130mm x 70mm Prop with Spinner (2)
PKZ3341 .........2.4GHz DSM2 Transmitter
PKZ3351 .........Receiver/ESC Board
Optional Parts
EFLA209 .........Foam-Safe CA (medium)
EFLA208 .........Foam-Safe Activator
EFLC1004AC ......Celectra 4-Port Charger with AC Adapter
Troubleshooting Guide
If you have any problems with setup or programming that cannot
be fixed by the Troubleshooting Guide, please see page 24 and
call the appropriate Horizon Product Support office.
Problem Possible Solutions
Aircraft will not “throttle
up” but all other
controls seem to
function.
Lower throttle trim and/or throttle
stick to their lowest settings.
Propeller or motor shaft
is broken.
Replace with Prop with Spinner
(EFL9051) or Prop Shaft
(HBZ4904).
Aircraft appears to
show significant
decrease in flight time.
Recharge flight battery completely.
Replace AA batteries in charger and
recharge flight battery completely.
Replace EFLB1501S battery and
read the “Battery Warnings and
Guidelines” section of manual.
Charger light stays
on after Li-Po battery
is disconnected, or
remains on for longer
than 40 minutes when
charging.
Replace AA batteries in charger.
Aircraft appears to have
less power.
Lubricate the bushings of the
gearbox.
Lubricate the bushings of the motor.
In cold weather, make sure the
batteries are warm before flight.
LED on aircraft
remains flashing and
cannot be controlled by
transmitter.
Unplug and reconnect flight battery.
Rebind the aircraft to the desired
compatible transmitter.
Move transmitter (powered on) a few
feet from the aircraft prior to
reconnecting the flight battery.
Aircraft appears to
roll or pitch towards a
certain direction.
Trim control surfaces using the
transmitter until the aircraft no
longer moves that direction.
Controls appear to
be reversed after
binding to a different
transmitter.
Read the “Control Test” section of
manual.
Aircraft does not
function after
connecting flight
battery and the aircraft
smells burnt.
Replace the receiver/ESC board
(PKZ3351) and check for
correct polarity when connecting the
flight battery.