72-61-11
 ú ú N01 Page 413 ú Jun 18/00 
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details. 
////////////////////////A / PW4000 SERIES /747-400 / ENGINES /MAINTENANCE MANUAL //////////////////////// 
50. PACKING 
55C. ANTI-SIPHON  
51. INSERT  TUBE ASSEMBLY  
REDUCER49.  
52. PACKING  2  TRANSFER  OIL TANK  
TUBE PORTS  
1. MAIN OIL  82.  PACKING  
FILTER  (2 LOCATIONS)  
HOUSING  
PORT LP5 
PORT LP4 
52. PACKING 64. PACKING 
66. OIL FILTER 65. PACKING 
PRESSURE RELIEF VALVE 
51. INSERT 
50. PACKING MAIN 
49. REDUCER 
GEARBOX (2 LOCATIONS) 
53. 
PACKING
54. 
TRANSFER
21. OIL SYSTEM PRESSURE TUBE 
RELIEF VALVE 
55A. TRANSFER TUBE 
55B. TRANSFER TUBE 
63. PACKING 
1 
82. PACKING62. PACKING (2 LOCATIONS) 
61. WASHER (4 LOCATIONS) 
60. BOLT 56. FILTER60. BOLT (4 LOCATIONS) ELEMENT(3 LOCATIONS) 
30. BRACKET 
69. 
SPRING
70. 
SCREW
71. 
KEY WASHER
57. PACKING 
29. COVER 
68. PACKING 
61. WASHER (4 LOCATIONS) 
67. INSERT 
81. NUT 
58. 
PACKING (4 LOCATIONS)
59. 
PLUG
72. NUT 1 
ENGINES PRE-PW-SB 79-43 
B 
2 
ENGINES POST-PW-SB 79-43 L-B3606 (0000) 
Main Oil Filter Housing Assembly Figure 403 (Sheet 3) 
G27786
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ENGINES POST-PW-SB 72-524 ú
 72-61-11
 AND PRE-PW-SB 79-79  ú ú N01 Page 414 ú Jun 18/00 
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details. 
50. PACKING 55C. ANTI-SIPHON 
51. INSERT TUBE ASSEMBLY 
49. REDUCER 
2
52. PACKING  OIL TANK
TRANSFER TUBE PORTS 
1. MAIN OIL 
82. PACKING FILTER 
(2 LOCATIONS) HOUSING 
PORT LP5 
PORT LP4 
52. PACKING 64. PACKING 
66. OIL FILTER 
65. PACKING 
PRESSURE
RELIEF VALVE 
51. INSERT 
50. PACKING 
MAIN 
49. REDUCER GEARBOX
53. 
PACKING (2 LOCATIONS)
54. 
TRANSFER
21. OIL SYSTEM PRESSURE TUBE
RELIEF VALVE 
55A. TRANSFER 
TUBE
55B. TRANSFER TUBE 
1
63. PACKING 
82. PACKING
62. PACKING (2 LOCATIONS) 
61. WASHER 
(4 LOCATIONS)
56. FILTER60. BOLT60. BOLT ELEMENT(4 LOCATIONS)(3 LOCATIONS) 73. SCREW30. BRACKET (2 LOCATIONS) 
74.  SPRING 
RETAINER
69. SPRING 
75. WASHER (2 LOCATIONS) 
57. PACKING 
29. COVER 68. PACKING
61. WASHER 
(4 LOCATIONS)
81. NUT 67. INSERT (4 LOCATIONS) 
58. 
PACKING
59. 
PLUG
72. NUT 
1 
ENGINES PRE-PW-SB 79-43 
C
2 
ENGINES POST-PW-SB 79-43 L-B3607 (0000) 
Main Oil Filter Housing Assembly 
Figure 403 (Sheet 4)
G27835
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ENGINES POST-PW-SB 72-524 ú
 72-61-11
 AND POST-PW-SB 79-79  ú ú N01 Page 415 ú Jun 18/00 
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details. 
////////////////////////A / PW4000 SERIES /747-400 / ENGINES /MAINTENANCE MANUAL //////////////////////// 
50. PACKING 
55C. ANTI-SIPHON 
51. INSERT TUBE ASSEMBLY 
49. REDUCER 
2
52. PACKING TRANSFER OIL TANK TUBE PORTS 
1. MAIN OIL 
82. PACKING 
FILTER 
(2 LOCATIONS) 
HOUSING 
PORT LP5 
PORT LP4 
52. PACKING 64. PACKING 
65. PACKING 
PRESSURE 
RELIEF VALVE
66. OIL FILTER 
51. INSERT 
50. PACKING 
MAIN
49. REDUCER 
53. 
PACKING GEARBOX (2 LOCATIONS)
54. 
TRANSFER
21. OIL SYSTEM PRESSURE TUBERELIEF VALVE 
55A. TRANSFER TUBE 
55B. TRANSFER TUBE 
1
63. PACKING 
82. PACKING
62. PACKING (2 LOCATIONS) 
61. WASHER 
(4 LOCATIONS)
56. FILTER60. BOLT 60. BOLT ELEMENT(3 LOCATIONS) (4 LOCATIONS) 
30. BRACKET 
78. 
RETAINING RING
 
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