Great Planes SU-31 3D ARF - GPMA1412 - Manual (Page 29)

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5. Attach the mount to the fi rewall using four 8-32 x 1" [25mm]
SHCS, four #8 fl at washers and four #8 lock washers.
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6. Loosen the motor mount assembly screws and adjust
the mount halves so that the face of the prop washer is
6-3/4" [171mm] from the fi rewall. Use threadlocker and
securely tighten all screws.
Install the Battery & ESC Trays
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1. Locate the three brushless battery tray pieces.
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2. Glue the brushless battery tray cross brace to the
underside of the tray as shown. Make note of the location of
the alignment key on the tray to determine the underside.
❏
3. Glue the brushless battery tray support piece in the
location shown in the fuse.
❏
4. Apply a bead of epoxy or thick CA onto the top edge
and tab of the support piece. Fit the brushless battery tray
into the fuse with the alignment key in the cutout on the left
side of the fi rst former. The tab on the support piece fi ts into
the slot at the aft end of the tray. From the included triangle
stock, cut two pieces 5-3/4" [146mm] long and glue them
along the sides of the tray as shown. Thoroughly glue the
tray into the fuse by running a bead of epoxy or thick CA
around the perimeter. Confi rm that the tray is securely glued
in place.