Heli-Max HMXE0250 - Manual (Page 12)

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3. Install three 3mm nylon lock nuts on the back side of
the gearbox where you just inserted the 3mm screws.
Tighten the bolts.
TAIL BLADES
Bag 5-1 Contents: Tail Rotor Blades, 3x16mm Cap Screw
(2), M3 Locknut (2), Fiber Filled Tail Blades 85mm (2)
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Install the plastic tail blades as shown above using a
3x16mm SHCS and 3mm Nylon lock nuts. Tighten until the
blades will support their own weight. Both tail blades need
to be tightened equally.
HORIZONTAL AND VERTICAL FINS
Bag 5 Contents: Horizontal Tail Fin, Vertical Fin, Horizontal
Fin Mount, Horizontal Mounting Plate, 3x30mm Cap Screw,
3x11mm Self-Tapping Screw, 3mm Locknut
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1. Using two 3x30mm screws and 3mm nylon lock nuts,
attach the vertical fin to the tail rotor gearbox as shown above.
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