Hirobo HI0412186 - Sceadu SZ-IV Tail Seesaw Link  [HI0412186]

Tail linkage component for Sceadu SZ-IV

The HI0412186 seesaw tail link is an RC-scale replacement part for the Hirobo Sceadu SZ-IV range, acting as the small pivoting lever that influences tail pitch balance and the responsiveness of yaw corrections. Below is guidance on fitment, straightforward installation checks, and how the part impacts trimming and setup.

Compatibility: Specified for the Sceadu SZ-IV series where the original seesaw or lever component is required. Always double-check the HI0412186 part number on your current assembly to ensure correct interchangeability.

Installation notes: Prior to installation, inspect the mating pin and any adjacent bearings for signs of wear, remove any burrs, and verify that the linkage moves freely through the full tail travel. Apply a light lubricant to metal contact surfaces and avoid excessive torque on retaining screws to protect articulation.

Tuning role: As a minor but precise geometry element, its condition and dimensions can subtly alter tail authority and neutral position. Fitting a new unit restores intended geometry; perform small trim adjustments on the bench to confirm the neutral tail position before flight testing.

When refurbishing the tail of a Sceadu SZ-IV, use the HI0412186 part to restore original geometry; replace suspect linkages in matched groups to keep consistent control response.