Carl Goldberg GBGP0102 - Manual (Page 11)

11
and a right side. Hint: Wood glue will allow you the working
time needed to properly position the pieces.
4. Wrap a small piece of Great Planes ® Plan Protector,
MonoKote ® backing, or waxed paper around cradle arm 17.
Glue cradle retainer 20 onto cradle spacer 21 with cradle
arm 17 positioned as shown. Align the cradle retainer so
that all of the edges and the cutouts match. Use two clamps
to hold the retainer onto the spacer while the glue dries.
Repeat this step for the other cradle piece.
5. When the glue dries from the last step, remove the
sliding cradle arms and discard the wax paper. Without
using glue, place one 15mm square plywood piece inside
each of the sliding arms. Slide the plywood square back
and forth in the rectangular cutout and make sure that it
slides freely. Sand the cutout to achieve smooth operation.
Refit the sliding arm in the cradle assembly with the 15mm
square in position.
6. Install each cradle assembly onto your field box so that
the fixed cradle arm (part 19) sits up against the inside face
of each upright. Install the 1/4-20 nylon wing bolt, making
sure it passes through the 15mm square plywood piece.
Test for smooth operation of the cradles. Note: Replacement
bolts can be ordered using this part number - GPMA2389.