8
E-flite Piper L-4 Grasshopper ARF Assembly Manual
8. Use pliers to install the backplate on the
connector to secure the connector to the servo horn.
9. Repeat Steps 6 through 8 to prepare a second
servo horn.
10. Turn the radio system on and check the
operation of the rudder and elevator servos. Make
sure the sticks and trims for the rudder and elevator
are centered. Slide the brass connector on the
pushrod wire for the rudder. Secure the servo horn
on the rudder servo so it is perpendicular to the
rudder servo.
11. Use a ruler to make sure the rudder and fin are
in alignment with each other.
Always use threadlock on metal-to-metal fasteners
to prevent them from vibrating loose.
12. Use a #00 Phillips screwdriver to install the
2mm x 4mm machine screw to secure the pushrod
wire to the brass connector.
13. Repeat Steps 10 through 12 to install the
elevator servo horn and secure the pushrod wire to
the connector.
Remember to unplug the motor battery and
turn off the radio system before proceeding.