Piper J-3 Cub - Hangar 9

Section 3: Servo Installation (Aileron) Step 4Place the aileron servo between the mounting blocks anduse a felt-tipped pen to mark the location of the four servomounting screws. Note that the servo must not touch thehatch in order to isolate engine vibration. Step 6Connect a 12" Servo Lead Extension (JRPA098) to theservo lead. Secure the connectors by tying them ina knot using dental floss or by using a commerciallyavailable connector clamp to prevent the servo leads frombecoming disconnected.Note: Before mounting the servo,electronically center the servo using thetransmitter, then install the servo arm toavoid having to remove the servo and centerthe arm later. It may be necessary to slightlytrim one of the servo mounting blocks to clearthe servo wire.Note: It is always a good idea to securethe servo connector and servo extensiontogether to prevent the wires frombecoming unplugged. Step 5Remove the servo and use a 1/16" drill bit to pre-drillthe holes for the servo mounting screws marked in theprevious step. Use the screws supplied with the servo tomount it to the servo mounting blocks.15