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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.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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