Hirobo HI0403209 SHUTTLE RG GPH 346 Pitch Arm replacement part  [HI0403209]

Pitch arm for Shuttle RG GPH 346

This is an RC-scale replacement pitch arm sold under the Hirobo part number HI0403209, intended for use with the SHUTTLE RG GPH 346 pitch assembly as named in the product title. The component is presented as a direct service item for maintaining pitch link integrity during routine repair or setup changes.

In practice the arm serves as the mechanical link that transfers servo motion into collective and cyclic pitch corrections. Inspect fitment points and ball link engagement before flight, confirm there is no binding at the control horns, and torque fasteners to the chassis manufacturer's recommendations when reusing original hardware.

For tuning, swapping a worn pitch arm can restore predictable stick-to-blade response. When replacing, compare arm geometry to the existing piece to avoid altering servo throw or altering blade angles unintentionally. Use threadlocker on metal-to-metal threads where specified by your helicopter's maintenance guide.