Throttle Control System Installation - Model Tech Fun Fighters P-51 ARF Assembly Instructions Manual

IMPORTANT The rudder pushrod passes close to the wing mounting bulkhead. In some cases it might be necessary to cut a
shallow relief in the edge of the bulkhead so that the pushrod doesn't rub against, or get caught on, the bulkhead.
❑ Install the servo horn retaining screw to secure the servo horn to the servo.
❑ Remove the masking tape and move the rudder right and left several times to ensure that the linkage assembly does not bind. It
should operate smoothly in both directions.
❑ (1) 13" (330mm) Pushrod Wire w/Z-Bend
❑ Thin C/A
❑ # 1 Phillips Head Screwdriver
❑ Wire Cutters
❑ Needle Nose Pliers
❑ Modeling Knife
step 1: instaLLing the throttLe serVo
❑ Install the rubber grommets and brass collets onto your throttle servo, making sure to install the collets with the flanges toward
the bottom of the servo.
STEP 2: INSTALLINg THE THROTTLE PUSHROD WIRE
❑ Carefully bend the pushrod wire down at a 90º angle at the mark you drew,
then cut off the excess, leaving 5/16" (8mm) of wire beyond the bend.
❑ Install the 90º bend in the pushrod wire into the hole that you enlarged
in the servo arm, using one snap-keeper, then reinstall the servo horn onto
the rudder servo, making sure that it's centered.

throttLe controL systeM instaLLation

YOU'LL NEED THE FOLLOWINg PARTS FROM THE KIT:
YOU'LL NEED THE FOLLOWINg TOOLS AND SUPPLIES:
❑ Install the throttle servo into the plywood servo tray, making sure to drill
1/16" (1.6mm) diameter pilot holes for the servo mounting screws.
IMPORTANT Note the orientation of the servo. When installed, the servo
output shaft must be toward the same side of the fuselage as your engine's
throttle arm. In most cases, this will be the right side of the fuselage.
❑ Mark the location of the throttle pushrod exit hole on the firewall.
IMPORTANT The throttle pushrod exit hole should be located near the
fuselage side so that it won't interfere with the fuel tank when it's installed.
You should also position the hole as close to the same height as the throttle
arm to prevent having to make excessive bends in the pushrod wire.
❑ (1) Adjustable Pushrod Connector Assembly
❑ Electric Drill
❑ 1/16" (1.6mm), 5/64" (2mm) and 3/32" (2.3mm) Drill Bits
❑ Straight Edge Ruler
❑ Pencil
❑ Rotary Tool with Sanding Drum
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