Hirobo HI2509010 - Eagle SX Seesaw Linkage Pin  [HI2509010]

Eagle SX seesaw replacement and fit

This component is an RC replacement seesaw pin intended specifically for the seesaw assembly on the Hirobo Eagle SX helicopter. The manufacturer reference for the part is HI2509010 and it is supplied as a single replacement piece for ongoing maintenance or repair of the seesaw linkage route.

The seesaw pin locates the pivot and secures the linkage geometry, which in turn influences tail pitch control and overall trim. When carrying out maintenance or trimming routines on the Eagle SX, inspect this pin for wear and install the HI2509010 replacement to preserve the correct pivot alignment.

Installation is manageable for experienced hobbyists: open the head assembly access as required on the Eagle SX, match the seesaw holes, and insert the pin fully into the original seating. After refitment check for smooth pivot movement, ensure there is no axial play, and re-validate control linkage travel prior to flying. The content here is limited to RC helicopter maintenance and tuning practices.