Great Planes Matt Chapman Eagle 580 ARF 1/3 Scale - GPMA1286 - Manual (Page 7)

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o 3 . Attach the ball link to the outer tapped hole of one of
the one-sided servo arms with 4-40 x 1/2" [13mm] Socket
Head Cap Screw [SHCS] brass stand off and 4-40 lock nut .
Note: The number goes down toward the servo arm.
o 4 . Attach the ball links to one other single-sided
servo arm .
Mount the Elevator Servos
o o 1 . Trim the covering from the servo bay in the stab .
o o 2 . Use a 1/16" [1 .6mm] drill bit to make the holes and
install the elevator servo to a stab half using the hardware
provided with your servo . Remove the screws and harden
the screw holes you created in the wood with thin CA . You
should do this each time you thread into wood .
o o 3 . Attach a 40" [1016mm] heavy duty servo lead
extension and secure it using 3/8" [9 .5mm] diameter heat
shrink tubing .
o o 4 . Cut the 4" [102mm] control horn bolt to a length of
2-1/4" [57mm] .
o o 5 . Place a pivot washer on the control horn bolt . Install
the control horn bolt through the top of the elevator .
o o 6 . Install a pivot washer to the other side and screw the
nylon nut onto the control horn bolt .