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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES /MAINTENANCE MANUAL ////////////////////////
INTERMEDIATE CASE (REF)
SEE C
SEE B
SEE A
MAIN AND ANGLE GEARBOX LAST CHANCE OIL STRAINER
FWD NO. 1, 1.5, AND 2 BEARING LAST CHANCE OIL STRAINER
A
FUEL/OIL COOLER (REF) FWD NO. 3 BEARING LAST CHANCE OIL STRAINER NO. 4 BEARING LAST CHANCE OIL STRAINER TURBINE EXHAUST CASE (REF)
B FWD
C
Last Chance Oil Strainer Inspection
Figure 601
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
D. Procedure
S 116-002-N00
(1) Clean the last chance oil strainer (Ref 79-21-16/701).
NOTE: The metal particles and other contamination from the last
____ chance oil strainer will stay in the solvent used to clean it. Make sure the container used to keep the solvent that goes through the last chance oil strainer is clean. Also, make sure the last chance oil strainer is made dry before you install it.
S 166-003-N00
(2)
Put the solvent used to clean the last chance oil strainer thru a paper paint strainer, or the equivalent, to remove the contamination.
S 226-004-N00
(3)
If there is contamination, do the inspection for the oil system contamination (Ref 72-00-00/601).
S 426-005-N00
(4)
Install the last chance oil strainer (Ref 79-21-16/401).
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
LAST CHANCE OIL STRAINER - CLEANING/PAINTING
____________________________________________
1. General
_______
A. This procedure gives the instructions necessary to clean the last chance oil strainers.
B. You can get access to the last chance oil strainers through the left thrust reverser.
TASK 79-21-16-207-001-N00
2. Clean the Last Chance Oil Strainer (Fig. 701)
__________________________________
A. Standard Tools and Equipment
(1)
Brush - Nylon
(2)
Air Source - Compressed, Dry, Filtered - 30 psi
(200 kPa)
B.
Consumable Materials
(1)
B00722 Solvent - Stoddard, P-D-680 Type II
C.
References
(1)
79-21-16/401, Last Chance Oil Strainer
(2)
79-21-16/601, Last Chance Oil Strainer
(3)
IPC 79-21-02 Fig. 20
(4)
IPC 79-21-51 Fig. 05
D.
Access
(1)
Location Zone
412 Engine 1 - Intermediate Case 9 o'clock
HPC Case 9 o'clock
Turbine Exhaust Case 10:30 o'clock
422 Engine 2 - Intermediate Case 9 o'clock
HPC Case 9 o'clock
Turbine Exhaust Case 10:30 o'clock
432 Engine 3 - Intermediate Case 9 o'clock
HPC Case 9 o'clock
Turbine Exhaust Case 10:30 o'clock
442 Engine 4 - Intermediate Case 9 o'clock HPC Case 9 o'clock Turbine Exhaust Case 10:30 o'clock
(2)
Access Panel
415 Left Thrust Reverser Half - Engine 1
425 Left Thrust Reverser Half - Engine 2
435 Left Thrust Reverser Half - Engine 3
445 Left Thrust Reverser Half - Engine 4
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