S3116 Servo Internal Gear Set FUAS3266 by Futaba  [FUAS3266]

Overview of the S3116 Gear Set

This gear set is a direct replacement kit referenced as AS3266 and EBS3336 designed for the S3116 servo platform. It is supplied without packing and intended for model-scale radio control use only.

The set is used to replace degraded or broken internal gears, re-establish correct gear mesh, and limit gearbox play that impairs steering or control surface accuracy. It focuses on service and repair rather than enhancing output.

To install, open the servo case, note the orientation and order of existing gears and shims, swap in the replacement gears, check mesh and free play, then reassemble. Always verify smooth, unloaded rotation before reconnecting linkages or horns.

Inspect bearings and shaft interfaces for signs of wear during service and apply a minimal amount of compatible servo grease to gear teeth to promote even engagement during the break-in period.