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Install the hatch – Great Planes Extra 300SP Performance Series ARF - GPMA1022 User Manual

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screws. Using a 1/16" [1.5mm] drill bit, drill a guide hole at
the marks you just made. Install the elevator servo. Remove
the elevator servo and place 2 drops of thin CA in each of
the elevator mounting screw holes. Wait for the CA to fully
cure. Install the elevator servo with the hardware provided
with the servo.

4. Center the elevator servo using the radio and install the

servo arm. Align the servo arm perpendicular to the elevator
pushrod. Center the elevator and make a mark on one of the
elevator pushrods even with the servo arm. Slide two 5/32"
wheel collars onto the two elevator pushrods and make a 90°
bend to one of the pushrods at the location of the mark.

5. Enlarge the hole in the servo arm using a 5/64" [2mm]

drill bit. After trimming away its excess length, run the bent
pushrod through the hole. Keep the pushrod in place using
a nylon FasLink.

6. Trim the non-bent elevator pushrod so that it is

approximately 1" [25.4mm] shorter than the bent pushrod.
Place some thread locker on to the 6-32 x 1/4" [6mm] socket
head screws. Level the two elevator halves and tighten the
socket head bolts.

7. Double-check to be sure the two elevator halves are

level, snap the clevises shut, and slide the silicone clevis
keepers over the clevises.

8. Using 6 minute epoxy, secure the nylon pushrod guide

to the pushrod guide former. Be careful not to get any of the
epoxy into the nylon pushrod guide.

Install the Hatch

1. Locate the two 3/4" [19mm] long, 1/4" [6mm] diameter

wood dowels. Test fi t the dowels by inserting them into the
holes located at the front of the hatch. The dowels should
stick about 1/2" [13mm] out from the face of the hatch.
Remove the dowels and glue them in place using a small
amount of 6 minute epoxy or thick CA.

2. Locate four small magnets. Glue two of the magnets

into the magnet mounting holes located at the rear of the

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