Step 20 Fuel Tank Assembly
From parts bag 3, insert the two pieces of aluminum tubing through the large cap, rubber stopper and small
cap, bend the long aluminum tube upwards and attach the short piece of fuel line and clunk to the short
straight piece of tubing. Test fit the assembly into the Fuel Tank and make sure that the clunk reaches the
end but moves freely and the vent tube is near the top of the tank but does not touch. Finally tighten the long
self tapping screw to seal the tank. Install the included tie wrap around the outside of the rubber cap.
Vent Tube - bent
Note: The fuel tank opening is off-center and should
be installed upwards to align close to the carburetor.
Large
Cap
Small Cap
Rubber
Stopper
90mm Fuel line inside
tank & Clunk
Pickup tube -
straight
Fuel Tank [HI3138A]
M2.5 x 18 Self
Tapping Screw
Make sure the muffler bolts are
inserted into the engine.
Step 21 Lower Frame Assembly
M3x12 Socket
Engine Mount
Cap Screws x 4
M3x11 Flat
Washer x 4
M3x12 Socket
Cap Screws x 4
& M3x7
Washer x 4
Lower Side Frames
[HW3112C] x 2
Fuel Tank
[HI3138A]
Cooling Fan Shroud
[HI3020A]
Insert muffler bolts
before assembly.
Engine Assembly
from Step 20
Completed
Upper Frame
Assembly from
Step 17
Attach the right lower frame (R) to the upper frame assembly with two M3x12 Socket Cap Screws (
Tip 1
)
and M3 Washers using threadlock. Slide the cooling Fan Shroud over the engine head and position the
engine assembly into the upper frames while attaching the two M3x12 Socket Cap Screws and M3x11
Washers through the (R) side frame ( leave these loose for now) into the engine mount.
Make sure the
muffler bolts are inserted into the engine
. Slide the fuel tank assembly through the frame and attach
the left lower side frame (L) to the upper side frames using two M3x12 Socket Cap Screws and M3 Wash-
ers using threadlock. Attach the remaining two M3x12 Socket Cap Screws and two M3x11 Flat Washers
to the engine mount. Position the engine assembly and tighten the engine mount bolts when there is 1mm
of gap between the clutch bell and the counter gear, using threadlock.
Optional
CN3033 - 30SE
CN3033B - 50SE
Speed Torpedo
HV Muffler
27
From parts bag 2: Insert one 3x25mm
Socket Cap Screw into the lower position
of the tail output bearing recess and secure
with a locknut from the other side.
Attach the tail boom assembly to the main mechanics by
sliding the tailboom tube into the hole in the rear of the
upper frame. The screws previously installed to mount the rear and
rudder servos may need to be loosened.
Tail Boom
Assembly
Step 37 Tail boom Final Assembly
Vertical Tail Fin
[HI3067A]
M3 Locknut
x 2
M3x30 Socket
Cap Screw x 2
Grease to be used inside the tail gearbox should be a teflon or light lithium type of grease com-
monly found in a hobbyshop. Do not use grease or any type of lubricant on the remaining gears
on the helicopter because they are exposed and can actually attract dirt and debris that can lead
to a failure.
Step 36 Vertical Tail Fin Assembly
Install the Vertical Fin with two
3x30mm Socket Cap Screws and
M3 locknuts through the mounts
in the front end of the tail rotor
gearbox.
3x25mm
Socket Cap
Screw
Connect the short ‘z’
bent rudder pushrod
at this time.
Slowly press the tailboom in, once the end
of the torque tube drive shaft first touches the
drive coupler, slowly rotate the tail blades while
applying a small forward pressure. As soon as
the two are aligned continue pressing in the tailboom until
fully seated. Tighten all four Socket Cap Screws firmly to
secure the tailboom.
