Install the cowl – Great Planes Extra 300SP EP ARF - GPMA1188 User Manual
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the rudder torque rod horn. Drop the string through the slot
in the fuselage, feeding it through the fuselage to the rudder
servo. Do this for both strings.
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8. Temporarily turn on the radio system and center the
rudder servo arm. Temporarily tape the rudder so it is straight
and won’t move. Inside the fuselage, slide a silicone clevis
keeper on the clevis and then attach the clevis to the outer
hole of the servo arm. Pass the string through a crimp, then
through the hole in the rigging coupler and back through the
crimp. Repeat this for the remaining string and clevis. With
the rudder and the rudder servo arm centered, pull the strings
tight and squeeze the crimps to secure the strings. Apply a
drop of CA to the strings and cut off the excess string. Fine
tuning of the string lengths and rudder centering can be done
by adjusting the clevises.
Install the Cowl
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1. Apply masking tape over the cowl mounting blocks and
fuselage. From the center of each mounting block draw a line
measuring back 1" [ 25 mm]. Do this for all four blocks. After
you have marked all four blocks tape the cowl in place, making
sure the cowl is centered with the motor and spinner backplate.
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2. From the back of the line you drew, measure forward
1" [ 25 mm ] and make a mark on the cowl. Do this for all four
mounting blocks. Drill a 5/64" [ 2 mm] hole through the cowl
and mounting block. Secure the cowl to the fuselage with the
four 3/32" 5/16" [ 2.5 8 mm] washer head screws.