(2)
The pressure manifold for the main and angle gearbox on the top of the fuel/oil cooler at approximately the 9 o'clock position
(3)
The pressure manifold for the No. 3 bearing to the rear of the fuel/oil cooler at approximately the 9 o'clock position
(4)
The pressure manifold for the No. 4 bearing on the turbine exhaust case between the flanges R and S at the 10:30 o'clock position
C.
The procedures necessary for the removal/installation of the No. 1, 1.5, and 2, or No. 3 (Without PW SB 79-52) last chance oil strainer are the same and the instructions are given together. The procedures necessary for the removal/installation of the main and angle gearbox or last chance oil strainer for the No. 4 bearing are given in different instructions for each strainer.
D.
You can get access to the last chance oil strainers through the left thrust reverser.
TASK 79-21-16-004-001-N00
2. Remove the No. 1, 1.5, and 2 Bearing, or No. 3 Bearing (Without PW SB 79-52)____________________________________________________________________________ Last Chance Oil Strainer (Fig. 401)___________________________________
A. Standard Tools and Equipment
(1)
Container - 1 U.S. gallon (4 liter) capacity,
used to catch the oil
B.
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 79-21-51 Fig. 05
C.
Access
(1)
Location Zone
412 Engine 1 - Intermediate Case 9 o'clock
422 Engine 2 - Intermediate Case 9 o'clock
432 Engine 3 - Intermediate Case 9 o'clock
442 Engine 4 - Intermediate Case 9 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
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
79-21-16
ALL ú ú N01 Page 401 ú Jun 10/93
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES /MAINTENANCE MANUAL ////////////////////////
INTERMEDIATE CASE (REF)
SEE F
SEE D
SEE A
FWD SEE B LAST CHANCE OIL STRAINER NO. 1, 1.5 AND 2 BEARING SEE C LAST CHANCE OIL STRAINER MAIN AND ANGLE GEARBOX
A
HOUSING OIL STRAINER LAST CHANCE LAST CHANCE OIL STRAINER 3. 4. BOLT (2 LOCATIONS)
1. PACKING
OIL STRAINER LAST CHANCE2. HOUSING OIL STRAINER 5. PACKING
B C
Last Chance Oil Strainer Installation
Figure 401 (Sheet 1)
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
79-21-16
ALL ú ú N01 Page 402 ú Jun 10/93
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
FUEL/OIL COOLER (REF)
NO. 3 BEARING LAST FWD CHANCE OIL STRAINER E
SEE E
D
6. TOP NO. 4 BEARING OIL
6. TOP NO. 4 PRESSURE TUBE
BEARING OIL
PRESSURE TUBE
7. TUBE NUT FOR THE INTERNAL TUBE
11. HEAT
SHIELD
8. BOLT NO. 4 BEARING (2 LOCATIONS)
LAST CHANCE
OIL STRAINER
13. LAST CHANCE SEE G
OIL STRAINER
9. HOSE CLAMP (2 LOCATIONS)
10. NUT (2 LOCATIONS)
TURBINE 12. PACKING EXHAUST CASE (REF)
LOWER NO. 4 FWD BEARING OIL PRESSURE TUBE
F
1
ENGINES WITHOUT PW SB 79-52
Last Chance Oil Strainer Installation
Figure 401 (Sheet 2)
LAST CHANCE OIL STRAINER HOUSING
1.
PACKING
2.
LAST CHANCE OIL STRAINER
1
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