Great Planes Giant Revolver ARF - GPMA1425 - Manual (Page 23)

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13. Slide the spinner back plate onto the prop shaft followed
by the newly drilled prop. Set the prop so it is positioned
properly. Without moving the prop rotate the back plate until
the prop is over the cut outs in the back plate. Place the spinner
cone on the back plate(do not secure the spinner cone with
screws). Using the spinner cone as your guide, position the
prop. Adjust the position of the back plate and spinner cone,
making sure there is clearance around the prop blade. Once
you are satisfi ed that all of the parts are properly aligned,
carefully remove the spinner cone without disturbing the prop
and back plate. Transfer the hole locations in the prop to the
back plate. Drill the prop holes in the back plate.
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14. Mount the back plate, prop and prop washer with the
engine bolts to be sure everything aligns. Make adjustments
as needed.
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15. Install the spinner with the eight screws and washers
included with the spinner. When you do the fi nal installation
of the screws you must use thread locking compound to
prevent them from vibrating free.
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12. Install the wing tube through the hole in the fuselage.