Hangar 9 Alpha 40 ARF Assembly Manual page 13


Step 3
Prepare three more 8-32 x 1-inch socket head screws and
insert them into the firewall as shown.

Step 4
Place a drop of threadlock on each of the screws.
Hangar 9 Alpha 40 ARF Assembly Manual

Step 5
Thread a 45mm EP standoff on each of the screws. Use
a 9/64-inch hex wrench or ball driver to tighten the 8-32
socket head screws while holding the standoff with a 5/16-
inch open end wrench. Install all four standoffs at this time.

Step 6
Use a drill and 11/64-inch (4.5mm) drill bit to enlarge the
mounting holes in the X-mount. It is highly recommended
to use a drill press as the X-mount can easily be pulled from
your hand if using a hand drill.

Step 7
Apply a drop of threadlock on each of the screws used
to attach the X-mount to the motor. Use a #1 Phillips
screwdriver to secure the mount to the motor.
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