Futaba FUAS4114 S3150 Replacement Gear Kit for Hobby Servos  [FUAS4114]

Gear kit compatible with S3150 Futaba servos

The Futaba FUAS4114 gear kit is presented as a direct service pack for servos identified as S3150, aimed at restoring worn gear trains in model servos. Below are practical pointers on checking fit, carrying out the swap, and keeping the servo performing reliably.

Compatibility and purpose: listed with the AS4114 and EBS3275 identifiers, this set is intended for S3150-class Futaba servos. Use it to swap out damaged gears and bring back accurate movement for steering, throttle, or other control linkages.

Installation notes: dismantle the servo from its mount and record the internal arrangement and bearing positions before removing gears to aid correct reassembly. After fitting, confirm gear mesh and endplay to avoid premature wear or noise. Lubricate with a small amount of suitable grease and avoid over-application that can trap grit.

Tuning role: a gear replacement can tighten up loose output play and improve positional consistency. For best results, inspect splines and bearings and review transmitter or ESC configurations that affect servo response.

A service spare intended to return S3150-designated servos to smooth, repeatable operation when worn gears are found.