19
From parts bag 5, assemble the servo tray using four
3x12mm Self Tapping Screws (
Tip 3
) into the lower
holes of the battery tray. Next install the throttle
servo from the
inside of the left vertical support
in the lower position.
( Note
,
use the rubber
grommets provided with the servos, you can
use the screws that came with your servos
or the screws provided in the kit
). Notice
that the output shaft of the servo is towards
the front. Insert the servo screws from
servo frame side through the slots and
secure using the servo mount tabs pro-
vided. Using two 3x10mm Socket Cap
Screws, attach the long hex spacer to the
front-most upper holes in the vertical sup-
ports using threadlock. Attach the switch mount
using four 3x6 Self Tapping Screws from the
inside of the right vertical support and the
canopy mount using two 3x30 Phillips
Self Tapping Screws through the top of the
battery tray, through the plastic spacer
and into the canopy
mount hook.
Step 22 Servo Frame Assembly
30mm Thread Hex Spacer &
18mm Hollow Round Spacer x 2
[HW3115C]
M3x30
Self
Tapping
Screws x 2
Throttle
Servo
Canopy Mount
Hook & Spacer
[HI3129]
Servo Mount Tab
x 2 [HI3205]
Switch Plate
[HW3115C]
M3x6 Self
Tapping
Screws x 4
Servo Frame Set
[HW3115C]
M3x12mm Self
Tapping Screws
Attach the servo frame assembly to the mechanics starting with one 3x30mm Socket
Cap Screw inserted through the upper rear hole in the servo tray. Next slide one 18mm
hollow spacer and insert through the lower hole in the front of the upper frames, stop just as the screw
is flush with the inside surface. Apply threadlock to the threads on both ends of the 30mm hex spacer
and place inside the upper frames. Tighten the screw into the hex spacer. Repeat for the other side.
Insert one M3x6 Phillips Washer Head Screw through the servo frame into the lower frame (lower
frame has a special fitted nut) using threadlock. Repeat for the other side. Secure the cooling fan
shroud with two M3x6 Self Tapping Screws.
Servo Frame Set
[HW3115C]
Step 23 Servo Frame Assembly to Mechanics
Grease to be used inside the tail gearbox should be a teflon or light lithium type of grease commonly 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 debrie that can lead to a failure.
M3x10 Socket
Cap Screw
M3x16 Socket Cap
Screw x 2
M3
Locknut
Part 1.
Position the output gear assembly into the right gear box half (
insure the 2 bevel gears are
meshed properly and the ball bearings are fully seated in their recesses
) and liberally
grease the gears before closing the gearbox. Position the gear box halves over the holes in the end of
the tail boom and secure with one 3x10mm Socket Cap Screw and M3 locknut at the end of the gear-
box and two 3x12mm Socket Cap Screws with M3 locknuts at the center of the gearbox.
Part 2.
While holding the tail bellcrank, thread in one short steel ball. Insert one ball bearing from one
side, then insert the spacer followed by the second ball bearing. Insert one 3x16mm Phillips Machine
Screw through the bellcrank assembly (from the bottom) and add one 3x5x0.5mm micro washer that
will fit between the bellcrank and flange on the gearbox. As the screw is tightened,
make sure
the
steel ball is engaged in the hole on the bellcrank and the bellcrank turns freely without binding.
Step 35 Tail Gearbox Assembly
Tail Rotor
Bellcrank
[HI3102B]
Apply Grease
Steel Ball
[CNLR1013]
M3x16 Socket Cap Screw
Machine Screw
[CNM3x16CS]
3x6x2.5F
Flanged B.B.
[CNBB0360F]
3x5x0.5T
Micro
Washer
Spacer
Tail Drive Shaft Set
Tail Input Gear Assembly
