LOCATION AND DESCRIPTION OF MAJOR COMPONENTS

TM 55-2840-254-23

1-9 LOCATION AND DESCRIPTION OF MAJOR COMPONENTS

Get to know your engine. The major components are listed and keyed in the following diagrams.

STARTER DRIVE ASSEMBLY. Mounts at the 12-o'clock position on the inlet housing and

provides the mounting pad for the starter. Internally connects to a shaft which is

connected by gearing to the compressor rotor.

MAIN FUEL FILTER. Filters fuel prior to delivery to the engine fuel control. Provides a visual

indication when it is close to bypassing its element because of clogging.

STARTING FUEL SOLENOID VALVE. Controls fuel flow to the starting fuel primer tube and

start fuel nozzles. Activated by airframe-mounted switch.

FLOW DIVIDER. Mounts at the bottom of the combustion section. Divides fuel flow from in-line

fuel filter into primary and secondary flows to the main fuel manifolds.

FUEL CONTROL. Mounts on the accessory drive gearbox. Isa hydromechanical device contain-

ing a fuel pump, gas producer and power turbine speed governors, an acceleration

and deceleration control, an air-bleed signal mechanism, and a fuel shutoff valve.

1-5