This RC replacement pitch arm is listed under Hirobo part number HI0403209 and is designed for use with the SHUTTLE RG GPH 346 pitch assembly. It is supplied as a service item to restore pitch link integrity during routine repairs or setup changes.
The arm converts servo output into collective and cyclic pitch changes. Before flight, check ball link engagement and control horn clearance to ensure there is no binding, and retorque fasteners to your airframe maker's recommended values when reusing original hardware.
Swapping a worn arm often restores predictable stick-to-blade response. Compare the replacement arm's geometry with the original to avoid unintentionally changing servo throw or blade angles, and use threadlocker on metal-to-metal threads where your maintenance guide specifies.
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