737 MAX Flight Crew Operations Manual
Engines, APU -
Engine System Description
7.20.8
MN-FLT-OH-201
Engine Fuel and Oil System Schematic
OPERATION
OIL
QUANT
OIL
TANK
C
FUEL PUMP
SECOND
STAGE
FILTER
SCAVENGE
PUMPS
OIL
CONDITION:
NORMAL ENGINE
FUEL
OIL
C
FUEL
FILTER
BYPASS
ENGINE FUEL
SHUTOFF VALVE
TO BEARINGS
AND GEAR BOXES
COMBUSTOR
FUEL
FLOW
OIL
PRESS
EEC
TRANSMITTER
VIA EEC
FUEL FLOW
ENG VALVE
CLOSED
CLOSED
FIRST STAGE
FUEL PUMP
SHUTOFF VALVE
FROM FUEL
VIA
EEC
VIA
EEC
OIL
TEMP
OIL FILTER
BYPASS
VIA
EEC
MAIN FUEL/OIL
HEAT EXCHANGER
SPAR VALVE
SPAR FUEL
VIA
EEC
VIA
EEC
PRESSURE
LOW OIL
NOTE:
ALL ENGINE OIL AND FUEL
INDICATIONS (EXCEPT OIL
QUANTITY AND ENGINE VALVE
CLOSED) ARE SENSED BY THE
EEC, DIGITIZED, AND SENT
TO THE CDS.
RETURN
TANK
FMU
B
OIL COOLER
AIR-COOLED
OIL SUPPLY
PUMP
B
B
OIL
SUPPLY
FILTER
March 1, 2021