EMBLA EB Tail Autorotation Shaft Upgrade HI0304124 by Hirobo  [HI0304124]

Tail autorotation shaft for EMBLA EB models

This auto rotation shaft is a replacement item for EMBLA EB series tail assemblies, referenced by Hirobo as HI0304124. It is intended as a straightforward direct-fit spare to recover the tail autorotation mechanism during maintenance tasks.

On EMBLA EB helicopters the shaft is central to tail control and autorotation function; fitting a new shaft when the original shows wear helps bring alignment back and preserves reliable tail behaviour during setup and tuning.

Installation notes:

• Ensure correct alignment with the tail housing prior to torquing fasteners to avoid any binding issues.
• Use the removal opportunity to inspect linkages and bearings and replace any items showing wear to maintain smooth rotation.
• After installation perform a ground check of tail travel and autorotation engagement, followed by a conservative flight check to validate operation.