Electric Motor Installation - Hangar 9 Alpha 40 ARF Assembly Manual


Step 5
Thread the propeller nut onto the engine crankshaft.

Step 6
Use an adjustable wrench to tighten the propeller nut. Secure
the propeller and spinner backplate onto the engine crankshaft.
Important: When tightening the propeller nut, always
use an adjustable wrench, box end wrench or 3/8-inch
drive socket. Using pliers will not allow you to place
enough grip to properly tighten the propeller nut.
Note: Make sure the propeller has not moved from
its position as described back in Step 3. If it has, the
spinner cone will not be able to be installed in the
following steps.
Hangar 9 Alpha 40 ARF Assembly Manual

Step 7
Slide the spinner cone over the propeller. It will fit into the
grooves in the spinner backplate when installed.

Step 8
Use the two 3mm x 10mm sheet metal screws supplied
with the spinner to secure the spinner cone to the spinner
backplate. A #1 Phillips screwdriver will be required to
tighten the screws.

Electric Motor Installation

Required Parts
Fuselage 45mm Motor standoff (4)
#8 washer (4) Battery tray (2)
Fuselage hatch 3mm washer (2)
Motor battery
Electric motor with mount and hardware
Electronic speed control (ESC)
Hook and loop strap (not included)
Hook and loop tape (not included)
3mm x 12mm socket head screw (2)
Motor with mounting hardware
8-32 x 1-inch socket head screw (4)
8-32 x 3/4-inch socket head screw (4)
Required Tools and Adhesives
30-minute epoxy Mixing stick
Threadlock Drill
Open end wrench: 5/16-inch Phillips screwdriver: #1
Drill bit: 11/64-inch (4.5mm)
Hex wrench of ball driver: 9/64-inch, 2.5mm

Step 1
Locate the parts necessary to install the electric motor
on the fuselage.
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