This RC-scale replacement part is the main gear stopper specified for the Sceadu SD series, designed to secure the main gear assembly during maintenance and setup. It functions as a retention and positioning component that helps keep the main gear located while you adjust meshing or service the transmission on Sceadu SD helicopters.
Installation is direct: remove the main gear cover to access the gear seat, fit the stopper in the designated mounting location on the Sceadu SD main assembly, and verify axial alignment and clearance before final reassembly. Use standard RC hardware practices when tightening fasteners and confirm free rotation of the gear train after installation.
On tuning and setup, this stopper aids repeatable gear meshing checks and temporary locking during rotorhead or drivetrain adjustments. It is intended as an RC hobby replacement part and should be used only on compatible Sceadu SD airframes where the original part is specified.
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