MAIN OIL FILTER D
Oil - Component Location Figure 102 (Sheet 2)
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A / PW4000 SERIES /
747-400 / ENGINES /FAULT ISOLATION/MAINT MANUAL ////////////////////////
FWD 
FUEL/OIL COOLER 
FUEL/OIL 
COOLER 
BYPASS VALVE 
SOLENOID, 
V358 
FUEL/OIL COOLER 
BYPASS VALVE 

EEC 
CHANNEL "B" 
CONNECTOR 
EEC 
CHANNEL "A" 
CONNECTOR 
FWD 
FUEL/OIL COOLER BYPASS 
VALVE AND SOLENOID 
E 

Oil - Component Location (Details from Sht 2)
Figure 102 (Sheet 3)

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A / PW4000 SERIES /
747-400 / ENGINES /FAULT ISOLATION/MAINT MANUAL ////////////////////////
REVERSER HALF 415 (ENGINE 1) 425 (ENGINE 2) 435 (ENGINE 3) 445 (ENGINE 4) LEFT THRUST 
FSEE OIL TANK (REF)  GSEE GEARBOX MAIN (REF)  REVERSER HALF RIGHT THRUST 416 (ENGINE 1) 426 (ENGINE 2) 436 (ENGINE 3) 446 (ENGINE 4)  2 
(REF) GEARBOX MAIN 
1 

OIL TANK 
FWD  CHIP DETECTOR MASTER MAGNETIC 
F OIL TANK (REF)  GEARBOX MAIN (REF)  FWD  MAGNETIC CHIP MAIN GEARBOX DETECTOR 
2 1  ENGINES WITH PWSB 79-65 ENGINES WITHOUT PWSB 79-65  G MAIN GEARBOX (REF) 
Oil - Component Location Figure 102 (Sheet 4) 

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A / PW4000 SERIES /
747-400 / ENGINES /FAULT ISOLATION/MAINT MANUAL ////////////////////////
LEFT THRUST REVERSER HALF 415 (ENGINE 1) 425 (ENGINE 2) 435 (ENGINE 3) 445 (ENGINE 4)
LUBRICATION AND SCAVENGE OIL PUMP
SEE H
NO. 3 BEARING OIL TEMPERATURE THERMOCOUPLE PROBE RIGHT THRUST REVERSER HALF 416 (ENGINE 1) 426 (ENGINE 2) 436 (ENGINE 3) 446 (ENGINE 4)
NO. 3 BEARING MAGNETIC CHIP DETECTOR ANGLE GEARBOX MAGNETIC CHIP DETECTOR
NO. 4 BEARING MAGNETIC CHIP DETECTOR
NO. 1,1.5, AND 2 
BEARING MAGNETIC 
CHIP DETECTOR 
MAIN 
GEARBOX 
(REF) 

FWD
INTEGRATED DRIVE LUBRICATION AND GENERATOR (REF) SCAVENGE OIL PUMP
LUBRICATION AND SCAVENGE OIL PUMP
H
Oil - Component Location
Figure 102 (Sheet 5)

 E23462
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A / PW4000 SERIES /
747-400 / ENGINES /FAULT ISOLATION/MAINT MANUAL ////////////////////////
LEFT THRUST 
REVERSER HALF  INTERMEDIATE 
415 (ENGINE 1)  CASE (REF) 
425 (ENGINE 2) 
435 (ENGINE 3) 
445 (ENGINE 4) 
NO. 1, 1.5, AND 
NO. 2 BEARING 
LAST CHANCE 
OIL STRAINER 
TURBINE 
EXHAUST 
CASE 
(REF) 
SEE  K  FWD 
FUEL/OIL  FUEL/OIL COOLER 
COOLER  (REF)  ANGLE AND MAIN GEARBOX 
FUEL/OIL  (REF)  LAST CHANCE OIL STRAINER 
　
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