Metal Gear Set Compatible with S9602 Servos - FUAS3215 Futaba  [FUAS3215]

S9602 internal gear upgrade FUAS3215

This aftermarket gear set is recorded under Futaba model FUAS3215 and marked AS3215 EBS3226, intended for S9602-class servos. It replaces internal gears that are worn or damaged to restore mechanical engagement and reduce endplay when fitted with correct mesh settings.

Compatibility: geared for S9602 servos as indicated by the product identification; always inspect the servo case and count splines to confirm fit. Installation will require opening the servo, aligning the gear train carefully, and reassembling to retain proper mesh and horn centring.

Role in tuning: installing metal gears alters stiffness and durability which can influence the feel at the control surface and improve resistance to gear stripping under load. After installation, check pinion alignment and run the servo through its full range without load to detect any binding or increased friction.

Select this gear set to renew S9602 internals, follow best-practice disassembly and lubrication, and bench-test the servo motion before refitting into your model.