AquaCraft Rio 51 - Manual (Page 8)

8 8
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8. Replace the radio box cover and radio box lid retainer.
Use your screwdriver to install the retainer.
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9. Using the screwdriver, carefully pry the retainer over
the tabs.
INSTALLING THE RUDDER BLADE
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1. Remove the 3mm and 4mm nuts and bolts from the
rudder pivot bracket.
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2. Insert the rudder into the rudder control arm assembly
as shown. Replace the 4 x 15mm screw and 3 x 15mm screw
and secure them with the 4mm and 3mm nuts, respectively.