S3173SVi Service Case Set FUEBS3439 for Futaba  [FUEBS3439]

S3173SVi housing replacement

This Futaba FUEBS3439 servo case set functions as a replacement shell to protect the internal assemblies of the S3173SVi servo. It returns lost structural integrity after crash damage and maintains internal alignment under load.

To install: remove the servo from its mount, carefully disassemble following the manufacturer's instructions, move the geartrain and electronics into the new case, then reassemble while confirming smooth gear mesh and correct horn orientation. Retain original screws where appropriate and check travel and centring before reinstalling the servo.

For workshop and field servicing the case reduces downtime by enabling straightforward housing swaps and helps keep servo calibration stable during setup and testing.