26
VMAR CHALLENGER 40ARF TRAINER
TM
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PHASE 7 - INSTALLING THE RADIO.
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STEP 7.1 - INSTALLING THE SWITCH
HARNESS AND THE RUDDER, ELEVA-
TOR & THROTTLE SERVO'S.
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7.1.1
Locate the Servo Tray Parts Bag that you
removed from the fuselage earlier.
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7.1.2
Locate the screws that were used by the factory
to attach the servo tray to the fuselage. These were
removed earlier.
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7.1.3
Carefully remove and retain the servo tray parts
and screws that were included in the Servo Tray Parts
Bag.
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7.1.4
Install
the dual servo
and single
servo black
adjustment
slider plates to
the servo tray,
flat side up,
using three
screws for the
dual servo
slider plate
and two
screws for the
single servo
slider plate.
Tighten the screws but leave just enough slack to allow the
adjustment plates to move to and fro.
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7.1.5
If you have not already done so, remove any
tape around the control rods in the radio compartment
within the fuselage. Tape may have been used to keep
the rods in place during shipping.
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7.1.6
Install your receiver switch harness now. Take
note of the ON/OFF switch orientation and the label on the
servo tray. If your radio has provision for an external
switch actuator it should be planned for now.
(Tip: if your
system does not come with an external switch actuator,
consider using an after market one.)
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7.1.7
Reinstall the servo tray into the fuselage with four
screws and orient the tray so that the "ON/OFF" label is
located towards the front of the fuselage. Ensure the
control rods that run fore and aft from the radio compart-
ment are above the tray before screwing the tray into
place.
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7.1.9
Mount the elevator servo second with the servo
output arm more towards the back of the fuselage. Note
the elevator servo location label on the servo tray.
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7.1.10
Once the elevator and rudder servos have been
mounted, tighten the servo mounting screws down ac-
cording to the servo manufacturers specifications.
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7.1.11
Tighten the three screws holding the larger dual
servo slider plate so that the slider plate is attached firmly
to the servo tray.
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7.1.12
Mount the throttle servo with the servo output
arm more towards the right side of the fuselage where the
throttle control rod is located.
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7.1.13
Once the throttle servo has been mounted,
tighten the servo mounting screws down according to the
servo manufacturers specifications.
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7.1.14
Tighten the two screws holding the smaller
single servo slider plate so that the slider plate is
attached firmly to the servo tray.
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7.1.15
Consult your radio manual and hook up the
servos, receiver, battery pack and switch harness in a
temporary configuration.
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7.1.16
Turn on the transmitter and then the receiver
and centre the rudder and elevator and throttle trim tabs.
Move the throttle stick on the transmitter to the midway
position representing half throttle.
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7.1.17
Turn the receiver off first and then turn the
transmitter off.
Tray sliders in place.
Dual Servo
Adjustable
Slider
Single
Servo
Adjust-
able
Slider
Screw
Screws
Screws
THROTTLE
SERVO
RUDDER
SERVO
LEFT
RIGHT
BACK
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7.1.8
Mount the rudder servo first with the servo output
shaft more towards the front of the fuselage. Note the
rudder servo location label on the servo tray.
ELEVATOR SERVO
FRONT
