Great Planes Escapade EP/GP ARF - GPMA1200 User Manual

Page 17

Hook Up the Throttle

Note: The installed receiver and receiver battery appear in a
few of the following photos. However, those components will
not be mounted until later when you get to Final Assembly.

❏

1. Glue the plywood throttle servo tray to the rails in the

fuselage just behind the fuel tank, so that, when the servo
is in the tray, the servo arm will be on the same side of the
fuselage as the throttle arm on the carburetor. Mount your
throttle servo to the tray.

Two-Stroke Hookup

THROTTLE
SERVO

THROTTLE
GUIDE TUBE

90° PUSHROD
CONNECTOR

CARBURETOR
ARM

CLEVIS

FIREWALL

14" [350mm]
PUSHROD

❏

1. Hook up the throttle using the 14" [350mm] pushrod, a

90° pushrod connector on the servo and a nylon clevis on the
carburetor arm. If using an O.S. Max AX series engine, the
hole for the pushrod guide tube is already cut in the fi rewall.
If using a different engine, you may need to cut a new hole in
the fi rewall for the guide tube that aligns with your carburetor
arm. If you do, mark the location of the new hole, remove
the engine if necessary, and then use an extended 3/16"
[4.8mm] drill (available at hardware or home improvement
stores) or a 3/16" [4.8mm] brass tube sharpened on the end
to cut a new hole in the fi rewall.

Proceed to steps 6 and 7 on page 19.

Four-Stroke Hookup

❏

1. If using an O.S. Max FL .70, guide the 3/16" x 4-3/4"

[4 x 120mm] plastic throttle pushrod guide tube through
the hole in the fi rewall that aligns with the carburetor arm.
If using a different engine and the hole in the fi rewall for the
guide tube does not align with the carburetor arm, you may
need to cut a new hole in the fi rewall for the guide tube that
aligns with the carburetor arm. If you do, mark the location
of the new hole, remove the engine if necessary, and then
use an extended 3/16" [4.8mm] drill (available at hardware
or home improvement stores) or a 3/16" [4.8mm] brass tube
sharpened on the end to cut a new hole in the fi rewall.

❏

2. Remove the engine from the mount. Enlarge the hole in

the carburetor arm to fi t the 7-1/2" [190mm] 4-stroke throttle
pushrod wire that has a Z-bend on one end. Fit the Z-bend
into the carb arm. Then, remount the engine sliding the
pushrod up through the guide tube.