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LEDs remain ON until
RESET is pressed.
OIL LEVEL
Displays engine oil
level as a percent of
the maximum quantity.
Menu Page
OIL FILTER
Indicator OFF --
Respective oil filter
operating normally.
Indicator ON --
Respective oil filter
impending bypass is
indicated.
BRT
RESET
Used to reset oil filter
and chip detect LEDs
to normal indication.
Do not reset detector flags
unless instructed by
maintenance or unless
conducting maintenance
functional check.
NOTE
Vol. 1 20--40--5
POWER PLANT
Oil System REV 3, May 03/05
Flight Crew Operating Manual
CSP C--013--067
Oil System -- EICAS Indications 1001
Figure 20---40---4
L or R ENG OIL PRESS warning (red)
Indicates oil pressure is less than 25 psi.
L or R OIL LEVEL LO status (white)
Indicates oil level is below 57% with engine running
or below 80% with engine not running.
ENGINE OIL
BRT
L ENG OIL PRESS
R ENG OIL PRESS
L OIL LEVEL LO
R OIL LEVEL LO
Status Page
Primary Page
Vol. 1 20--40--6
POWER PLANT
Oil System REV 3, May 03/05
Flight Crew Operating Manual
CSP C--013--067
A. Oil Replenishing System
The engine oil reservoir is manually replenished through an oil fill cap on the top of
each engine. Access to the fill cap is gained by opening the engine cowlings. There is
an oil level indicator adjacent to the fill cap.
The engine oil replenishment system is located in the aft equipment bay. The system
enables the engine oil tanks to be filled remotely. The system includes a storage tank
with sight glass level indicator, an electric pump, a control panel and an engine selector
valve. <1213>
Oil Replenishment System <1213>
Figure 20---40---5
NOTE
The engine oil level check should be accomplished
within 3 minutes to 1 hour after engine shutdown.
The engines must be dry motored if the
replinishment period is exceeded.
Do not allow more than 1.9 liters (2 U.S. quarts) to flow
into the engine without dry motoring the engine for at
least 30 seconds (prior to adding more oil).
Manual
Oil Replenishment
Selector Valve
Aft Equipment Bay
Selector Valve
Turn to select
replenishment
of respective
engine oil tank.
Oil Level
Control Panel
Aft Equipment
Bay
Vol. 1 20--40--7
POWER PLANT
Oil System Sep 09/02
Flight Crew Operating Manual
CSP C--013--067
B. System Circuit Breakers
SYSTEM SUB--SYSTEM CB NAME BUS BAR CB
PANEL
CB
LOCATION
NOTES
Pressure
L ENG OIL
PRESS
BATTERY
BUS 1 M1
Oil System
R ENG OIL
PRESS
DC
ESSENTIAL 2 S7
Indication ENG OIL IND APU
B2
Replenishment
<1213>
ENG OIL
REPL
BATTERY
DIRECT
5
B3
Vol. 1 20--40--8
POWER PLANT
Oil System Sep 09/02
Flight Crew Operating Manual
CSP C--013--067
THIS PAGE INTENTIONALLY LEFT BLANK
Vol. 1 20--50--1
POWER PLANT
Fuel System Sep 09/02
Flight Crew Operating Manual
CSP C--013--067
1. FUEL SYSTEM
Fuel from the collector tanks is supplied to the respective engine fuel pump unit by a main
ejector or an electric booster pump, through the engine fuel feed shutoff valve.
Engine fuel distribution is controlled by a gearbox-driven fuel pump unit and a fuel metering
unit. Pressurized fuel from the centrifugal pump goes through the heat exchanger, a filter
then back to the fuel pump unit. The fuel/oil heat exchanger is used to cool engine oil and
heat the combustion fuel.
The fuel pressure is then increased by the primary pump then sent to the fuel metering unit,
operability bleed valve, VG actuator circuit and the overspeed circuit. Metered fuel is then
supplied to the combustion chamber in relation to commands from the Full Authority Digital
Electronic Control (FADEC). The FADEC receives input signals from thrust levers, air
temperature and pressure altitude data from the air data system and information from
internal engine sensors. The FADEC uses the information to regulate the fuel flow to the
engine to obtain the desired engine thrust.
Eighteen dual-orifice (primary and secondary) fuel injectors are installed on each engine.
The primary orifice is used to spray fuel into the combustor at low power settings. At power
settings above idle, the secondary orifice is opened and both the primary and secondary
orifices then spray fuel into the combustor.
Combustion fuel can be shut off by moving the thrust lever to the shutoff position or by
　
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