GREAT PLANES Waco YMF-5 Instruction Manual page 7

screw holes with thin CA. Let the CA cure and reinstall the
screws. Remember that you are going to set up a left side
servo and a right side servo.
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3. With the hardwood blocks attached and each servo
arm still centered, position your servo on the aileron servo
bay cover so that the servo arm is centered in the opening.
Glue these in place and hold the blocks to the servo bay
cover with two small clamps. The clamps shown here are
Excel 3-1/2" [89mm] plastic clamps (EXLR5663). Let the
glue cure.
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4. Mark the approximate center line of each block on
both the wide side and the narrow side of each mounting
block. Using a 1/16" [1.6mm] drill bit, drill one hole into each
block by drilling through the servo bay cover and into the
block. Sighting from the back and from the side, line up the
drill with the marks you made on the blocks.
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5. Install one #2 x 3/8" [9.5mm] countersunk sheet
metal screw into each block. Remove the screws and harden
the holes you just tapped with a drop of thin CA.
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6. Attach a 16" [405mm] servo lead extension to the
aileron servo lead. Use a piece of 3/8" [9.5mm] diameter
heat shrink tubing (not supplied) to secure the connection or
simply tape the connectors to secure them. Route the servo
lead through each wing using the supplied guide string.
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7. Route the other end of the servo lead through the
hole in the top side of the wing.
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8. Note the orientation of the servo bay cover in
the photo above. Position the completed servo bay cover
properly and install it to the wing using four #2 x 3/8" [9.5mm]
sheet metal screws and four #2 flat washers. Remove the
screws and servo bay covers and harden the screw holes
with a drop of thin CA.
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