T-HAWK Fuselage Replacement

T-HAWK Service Tip #1
Fuselage Replacement Procedure

This procedure is easier than you might think because the servo & tail assembly are pulled out together as a unit.

A servo replacement or servo arm replacement does not require removal of the internals as shown in this procedure. The access openings in the fuselage bottom allow for easy disconnection and reconnection of the push rods.

	Fuselage To Be Replaced This fuselage also needs a another rudder servo so it's replacement is also included in this example.
	(1) Remove the tail boom screw.
	Needle nose pliers are used to hold the nut.
	(2) Remove the 6 screws on the fuselage underside.
	(3) Remove the motor enable button.
	(4) Twist/Rotate the tail boom while holding the fuselage to break the tack adhesive on the fuselage floor inside. DO NOT FLEX OR BEND THE TAIL BOOM..
	(5) Remove the motor screws.
	(6) Remove the cable tie which secures the battery cable.
	Use small wire cutters.
	(7) Push the tail boom end out of the molded grips in the floor. Squeeze underneath the fuselage, pushing up underneath the tail boom to "pop" it free.
	(7) Remove the internals The servo assembly will pull out the front several inches along with the other electric components.
	The tail boom will only pull through enough for the end to stick out the front a little.
	(8) Open the pushrod 'U' bends Use pliers to turn the 'U' bends into right angles.
	(9) Pull the pushrod ends down to hug the tail boom. Hold in place if necessary while performing the next step.
	(10) Pull the tail boom clear out of the fuselage from the front. Use pliers (in right hand) to grab the push rods and pull them together with the tail boom (in left hand). Check the pushrod ends and reform or reposition as necessary to ease them through.
	(11) Fuselage Removal Complete All components remain intact and connected.
	(12) Servo Replacement (if needed) Remove servo arm
	Remove damaged servo
	Install replacement servo as shown.
	Servo wiring is as shown. Black conductor on cables are always toward the board edge. The forward servo (rudder) plugs into the middle header position, the aft servo (elevator) mates with the header furthest from the crystal (largest silver can component) and the ESC (speed controller) not shown takes the header position closest to the crystal.
	(13) Tape the pushrod ends. Use a thin tape and tightly wrap while holding the push rods against the boom.
	(14) Insert the taped tail boom into the new fuselage. Enter through the front canopy as shown.
	(15) Carefully push the taped end through the narrow portion of the fuselage boom stem.
	(16) Place the servo tray inside the fuselage while pushing the tail boom through.
	(17) Align the tail boom end using the adhesive as a guide.
	(18) Depress the tail boom end into the molded grips. Use the flat end of a pencil or pen if your fingers cannot reach deep enough.
	(19) Install the tail boom screw. Align the tail boom hole with the fuselage hole, some rotation and or sliding of the tail boom may be necessary. Push the screw through and secure it with a nut. A clamp or vise may be necessary to squeeze the fuselage walls together enough for the screw end to extend through the other side.
	(20) Set the servos to center position. Attach the ESC (speed controller), turn on the transmitter and then connect the flight batter. Set the transmitter trims to center position and then remove the flight flight battery.
	(21) Position the servo arm over the servo.
	(22) Push the servo arm onto the servo head. The arm should be pointing to the fuselage side wall. Attach the retaining screw.
	(23) Tie the battery cable to the forward wing post. Use a small nylon cable tie. (Provided with the replacement fuselage hardware)
	(24) Install the ESC (speed controller) Tape the ESC (speed controller) to the fuselage wall as shown.
	(25) Install the receiver. Wrap the receiver in bubble plastic and tape the the fuselage wall as shown. The fuselage C.G. with NiCd flight battery is about 2" from the forward wing edge post.