Oil - Component Location
Figure 102 (Sheet 6)
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79-00-00
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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)
(REF) OIL TANK SIGHT GAGE
OIL TANK SEE L SEE M FILLER CAP OIL TANK
1
CAP FILLER HANDLE IN POSITION THE LOCKED GEARBOX MAIN (REF) FWD OIL TANK L OIL TANK
DRAIN SCUPPER 2
M OIL TANK FILLER CAP
2 1 ENGINES WITHOUT PWSB 79-65 ENGINES WITH PWSB 79-65
Figure 102 (Sheet 7) Oil - Component Location
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////
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)
1
OIL TANK (REF)
SEEO SEEN MAIN GEARBOX
SEE P
(REF)
FWD
OIL QUANTITYOIL TANK TRANSMITTER, T675
OIL TANK (REF)
N
OIL PRESSURE TRANSMITTER, T679
2
OIL SYSTEM PRESSURE
MAIN OIL (REGULATOR)
FILTER (REF) RELIEF VALVE (REF)
LOW OIL
PRESSURE
WARNING
SWITCH, S1584
OIL FILTER DIFFERENTIAL PRESSURE SWITCH, S1583
FWD
INTERMEDIATE CASE (REF) FWD
O
(VIEW IN THE UP DIRECTION)
1
ENGINES WITHOUT PWSB 79-65
2 ENGINES WITH PWSB 79-65 P
Oil - Component Location
Figure 102 (Sheet 8)
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OIL - INSPECTION/CHECK
______________________
1. General
_______
A. This procedure has two tasks. The first task does a visual inspection of the oil system tubes for the engine. The second task does a leak detection inspection of the oil system.
B. You can get access to the oil system tubes when you open the thrust reversers.
C. When the engine turns for an extended time at speeds less than idle
(i.e. extended start/shutdown, windmilling), it is possible for the oil to go through the No. 2 bearing carbon seal assembly. After an engine shutdown, this oil can drain and will show on the retention bolts of the variable stator vane at the bottom of the engine. This small quantity of oil leakage is permitted and no corrective action is necessary.
TASK 79-00-00-206-001-N00
2. Do the Inspection of the Oil System Tubes
_________________________________________
A. References
(1)
AMM 71-11-04/201, Fan Cowl Panels
(2)
AMM 71-11-06/201, Core Cowl Panels
(3)
AMM 78-31-00/201, Thrust Reverser System
(4)
IPC 79-21-01 Fig. 15
(5)
IPC 79-21-05 Fig. 5
(6)
IPC 79-21-09 Fig. 1
(7)
IPC 79-21-40 Fig. 1
(8)
IPC 79-21-40 Fig. 2
(9)
IPC 79-21-51 Fig. 5
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