Great Planes Syncro EDF - GPMA1581 - Manual (Page 14)

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4. Use a hobby knife to enlarge the hole in the fan housing
to accommodate the adapter shaft on the motor.
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5. Use threadlocker to wet the threads of both 3mm fl at-
head Phillips screws and mount the motor in the fan housing
with the screws through the slotted holes. Note that the wires
coming out of the back of the motor should be perpendicular
to the mounting tabs on the housing. The side with the wires
will be the “top” of the unit.
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6. Fit the fan onto the adapter shaft keying the notches in
the back of the fan over the set screws protruding from the
shaft. Make certain the fan is all the way down onto the shaft—
if you can thread the nut over the shaft with a little of the shaft
protruding from the nut, then the fan is all the way on.
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7. Remove the nut, add a drop of threadlocker to the
threads, then install and tighten the nut with an 8mm or 5/16"
wrench or pliers.
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8. OPTIONAL: The optional tail cone may provide
a few additional miles-per-hour, but it won’t be anything
monumental. If you prefer not to take the time to install the
tail cone simply skip this step. To install the cone, cut a slot
in the cone to accommodate the motor wires, then tack-glue