Engine and Related Systems
T-45C TS, ADV & IUT ENG-04
1.
Functional description
a.
General
Sg 2, fr 18
(1) Provides lubrication of engine shaft
(9 Overlays)
bearings and internal and external
Engine Lubrication
gearboxes
System Block Diagram
(2) Oil pump: draws oil from oil tank and
maintains pressure to engine and gearbox
oil systems
b.
Components
(1) Oil tank and system: contains approxi-
mately 25.2 U.S. pints with unusable,
Overlay 1
quantity of 9.6 U.S. pints
Oil Tank
(2) Oil pumps: engine-driven, mounted on the
Overlay 2
accessory gear box
Oil pump
(3) FCOC
Overlay 3
FCOC
(a) Heat exchanger unit provides oil
cooling through heat exchange with
Overlay 4
engine fuel
FCOC Bypass Valve
(b) Integrated FCOC bypass valve
ensures adequate engine lubrication
under cold temperature conditions
Overlay 5
Filter
(4) Oil filter: filters all oil entering engine and
gearboxes
Overlay 6
(5) Distribution: oil distributed to engine
Distribution Block
and external gearbox
(6) Oil differential switch
Overlay 7
Differential Switch
(a) Measures pressure differential
between internal gearbox oil feed and
scavenge
Original (9-98)
Page 4-14
Previous Page
