Great Planes CAP 232 1.60 ARF - GPMA1410 - Manual (Page 21)

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1. Connect the throttle servo to a 12" [305 mm] servo
extension. Secure the connection using heat shrink tubing.
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2. Insert the throttle servo into the firewall box and install a
servo arm as shown. Drill 1/16"[1.6 mm] pilot holes for the
servo mounting screws. Install the screws, then remove them.
Harden the holes with thin CA. Allow the CA to fully dry before
inserting the servo mounting screws.
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3. Install the brass servo screw lock connector to the
outer hole in the throttle servo arm.
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4. If you have not already done so, install the muffler for
your engine. This will allow you to route the throttle pushrod
so it will clear the muffler.
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5. Attach a nylon clevis and silicone retainer to the
threaded end of the pushrod.
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6. Bend the pushrod to allow it to clear the muffler and
insert the throttle pushrod into the brass screw lock
connector. Tighten the set screw to secure the rod.
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7. Apply a drop of thread locker to the set screw to prevent
it from backing out.
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8. Using your radio system, adjust the throttle so that when
the servo arm is facing the rear of the fuse as shown in the photo
from step #2 the carburetor is fully open when your throttle stick
is pushed all the way up. When the throttle stick and trim are
moved all the way down, the carb should close completely. With
the trim centered, there should be a gap of approximately 1/16"
[1.6 mm] in the carb to allow the engine to idle.
Note: The fuel line and stopper included in the Great Planes
CAP 232 ARF are NOT gasoline safe. Gasoline will degrade
the rubber stopper and silicone fuel tubing supplied. You will
need to purchase a gasoline safe stopper and gasoline safe
tubing to use for the fuel system on this model. The Sullivan
#484 Gasoline/Diesel fuel tank conversion kit (SULQ2684)
works well for this.
You will also need to purchase appropriate mounting
hardware for your brand of engine. For the Fuji-Imvac 43cc
gas engine installation, 10-32 or 1/4" hardware and blind
nuts work best for mounting the engine to the firewall.
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1. Cut the mounting bolt template for the Fuji-Imvac 43
Gas Engine from page 35 of this manual and tape it to the
firewall. Align the vertical and horizontal lines as shown.
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2. Drill 3/32" [2.5 mm] pilot holes at the center of the cross
marks for the bolt holes.
Because of the possibility of ignition engines creating
radio noise, we use a plastic pushrod for the throttle
servo installation. This isolates the engine and any radio
noise from the servos. This is an IMPORTANT selection,
and we cannot recommend strongly enough that you DO
NOT change this pushrod to a metal pushrod. All radio
equipment—including throttle servo, receiver battery,
electronic kill switch, receiver on/off switch, and servo
leads—should be mounted at least 12" [300 mm] away
from anything related to the ignition/gasoline engine. Any
material used between the engine and the radio
equipment is STRONGLY recommended to be plastic,
nylon, or otherwise non-metallic and nonconductive to
minimize ignition noise transmission.
Optional Gas Engine Installation Install the Throttle Servo (Glow Engine)
21