Futaba FUAS4114 S3150 Servo Gear Set for Replacement and Maintenance  [FUAS4114]

Replacement gear pack for S3150 servos

This Futaba FUAS4114 gear set is supplied as a direct replacement pack for servos marked S3150, intended to restore worn gearing in hobby RC servos. The sections below cover fitment checks, straightforward installation steps, and how new gears influence routine maintenance and setup.

Compatibility and purpose: the product references S3150-class Futaba servos and is associated with part codes AS4114 and EBS3275. Replace damaged or worn gears with this set to recover smooth operation and maintain accurate positioning for steering, throttle, or other control surfaces.

Installation notes: remove the servo from the model and photograph or note the internal layout and bearing locations before disassembly to guarantee correct reassembly. After fitting the new gears check tooth mesh and axial play; incorrect mesh causes noise and accelerated wear. Apply light lubrication only, and use greases recommended for small plastic or metal gears to prevent contaminant buildup.

Tuning role: fresh, undamaged gears often reduce backlash and jitter at the output spline, helping to sharpen control response. When evaluating servo performance, pair a gear change with inspections of bearings, spline integrity, and any transmitter or ESC settings that influence overall behavior.

Intended as a service replacement for hobby servos carrying the S3150 identifier; use this gear set during scheduled maintenance to restore smooth, repeatable output.