Speed Brake Actuator (Motor Support) 684D100 Series

Description

The 684D100 (Eaton Part Number), S253T401 and S253T402 (Boeing Part Number) Series Automatic Ground Speed Brake Linear Actuator is manufactured or cataloged by Eaton Aerospace. The automatic ground speed brake linear actuator is a linear-type actuator powered by a self-contained direct current motor. The major functional components of the unit are the motor, brake, spur reduction gear drive train, ball screw and nut assembly, load limiting clutch, and stroke limit switches. Positive mechanical stops are incorporated in the unit to prevent overtravel of the actuator in the event of a limit switch malfunction.

Part numbers within this series may include but may not be limited to 684D100-1 (Eaton P/N) S253T401-1 (Boeing P/N), 684D100-3 (Eaton P/N) S253T402-2 (Boeing P/N), 684D100-5 (Eaton P/N) S253T402-2 684D100-7 (Eaton P/N) S253T402-3 (Boeing P/N), 684D100-MD7-1 (Eaton P/N) S253T402-4 (Boeing P/N), 684D100-9 (Eaton P/N) S253T402-2 (Boeing P/N), 684D100-MD9-1 (Eaton P/N) S253T402-5 (Boeing P/N), 684D100-11 (Eaton P/N) S253T402-4 (Boeing P/N), 684D100-13 (Eaton P/N) S253T402-5 (Boeing P/N), 684D100-15 (Eaton P/N) S253T402-4 (Boeing P/N), 684D100-17 (Eaton P/N) S253T402-5 (Boeing P/N).

Typically, the 684D100 (Eaton Part Number), S253T401 and S253T402 (Boeing Part Number) Series Automatic Ground Speed Brake Linear Actuator can be found on Heavy Jet aircraft within the Commercial and Military sectors.