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Great Planes ElectroStik EP RxR - GPMA7500 User Manual

Page 11

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11

5. Secure the wing by inserting the two 10-24 nylon wing

bolts into the wing and tightening them down as shown.

6. Now is a good time to test the rotation of the motor

before the prop is installed. Use your radio system and motor
battery to temporarily power the motor. CAUTION: Though it
is highly unlikely that the motor will start, stay away from the
propeller once the batteries have been plugged in. Always
leave the batteries unplugged unless you are preparing to fl y.
Assume that whenever the batteries are plugged in that the
motor and propeller could start at any time.

Install the Propeller

1. Remove the nut and prop washer from the RimFire

42-50-1000kV motor and push the spinner backplate all the
way onto the motor shaft. The center hole may be enlarged
with a prop reamer or drill if necessary. Place the prop on the
shaft so that it is perpendicular to the screw hole receptacles as
shown. Finger-tighten the prop nut and washer. Hold the prop
shaft and tighten the prop nut securely with a prop wrench.

2. Attach the spinner cone to the backplate using the two

#4 x 1/2" [12.7mm] screws.

GET THE MODEL READY TO FLY

Install & Connect the Motor Battery

Before you can power the radio system and set up the
controls, the motor batteries will need to be charged. Charge
the batteries and then read the following precautions on how
to connect for fl ying the model.

Check the Control Directions

1. Switch the transmitter “ON” and make sure the throttle

stick is down to the off position. Connect the motor battery
to the ESC and center the trims. When you hear the “beep”,
move the throttle stick to full power and you will hear another
“beep.” Move the throttle back to the “OFF” position and
you will hear four “beeps.” CAUTION: This indicates that
the motor is now armed and when you advance the throttle
stick, the propeller will begin spinning and thus, propelling
the plane forward. If it does not, the throttle reversing switch
may be set incorrectly. Disconnect the motor batteries and
change the throttle reversing switch. Retry the throttle arming
procedure. If the prop is turning the wrong direction (no air
blowing back towards the fuselage), disconnect and switch
any two of the black wires between the motor and ESC.
The ESC will remain armed until you disconnect the motor
battery packs. WARNING! Once the battery is connected
to the ESC, stay clear of the propeller even if the ESC
has not been armed.

2. Make certain that the control surfaces respond in

the correct direction as shown in the diagram. If any of
the controls respond in the wrong direction, use the servo
reversing in the transmitter to reverse the servos connected
to those controls. Be certain the control surfaces have
remained centered. Adjust them if necessary.