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73-11-05
ALL ú ú N01 Page 431 ú Feb 10/97
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
2) Remove the bolt (113), nut (114) and washer (115) which attach the heat shield (112) to the brackets. 3) Remove the heat shield (112).
(b)
If you will remove the No. 13 fuel injector, remove the bracket (11). 1) Remove the bolts (52), nuts (51) and washers (53) which
attach the bracket (54) to the bracket (11). 2) Remove the bolts (21) which attach the bracket (11) to the No. 12 and No. 13 fuel injectors (5). 3) Remove the bracket (11).
(c)
ENGINES PRE-PW-SB 73-84, PRE-PW-SB 79-46 OR PRE-PW-SB 79-75; If you will remove the No. 13 fuel injector, remove the oil scavenge manifold (135) for the No. 3 bearing (Fig. 404). 1) Disconnect the electrical connector (140), W5P13, from the
oil temperature sensor of the No. 3 bearing. 2) Install caps on the electrical connectors. 3) Remove the bolt (141) and nut (143) which attach the clamp
(142) to the bracket on the lubrication and scavenge oil pump. 4) Put the 5 gallon (19 liter) container below the lubrication and scavenge oil pump. 5) Disconnect the tube nut (136) from the diffuser case fitting.
6) Remove the bolts (139) which attach the oil scavenge manifold (135) and the bracket (138) to the lubrication and scavenge oil pump. a) Let the oil drain into the container.
7) Remove the oil scavenge manifold (135) from the engine. a) Discard the packing (137). 8) Install caps on the diffuser case fitting and the open port on the lubrication and scavenge oil pump.
(d) ENGINES POST-PW-SB 73-84 AND PRE-PW-SB 79-46 OR PRE-PW-SB 79-75; If you will remove the No. 13 fuel injector, remove the oil scavenge manifold (135) for the No. 3 bearing (Fig. 404). 1) Remove the nuts which attach the harness connector (140),
W5P13, to the studs of the oil temperature sensor of the No. 3 bearing.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
73-11-05
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
2) Remove the bolt (141) and nut (143) which attach the clamp
(142) to the bracket on the lubrication and scavenge oil pump. 3) Put the 5 gallon (19 liter) container below the lubrication and scavenge oil pump. 4) Disconnect the tube nut (136) from the diffuser case fitting.
5) Remove the bolts (139) which attach the oil scavenge manifold (135) and the bracket (138) to the lubrication and scavenge oil pump. a) Let the oil drain into the container.
6) Remove the oil scavenge manifold (135) from the engine. a) Discard the packing (137). 7) Install caps on the diffuser case fitting and the open port on the lubrication and scavenge oil pump.
(e) ENGINES POST-PW-SB 73-84 AND POST-PW-SB 79-46; If you will remove the No. 13 fuel injector, remove the oil scavenge manifold (135) for the No. 3 bearing (Fig. 404). 1) Remove the nuts which attach the harness connector (140),
W5P13, to the studs of the oil temperature sensor of the
No. 3 bearing.
2) Remove the bolts (142, 146) and nuts (141, 145) which attach the clamps (143, 144) to the bracket on the lubrication and scavenge oil pump.
3) Put the 5 gallon (19 liter) container below the lubrication and scavenge oil pump.
4) Disconnect the tube nut (136) from the diffuser case fitting.
5) Remove the bolts (139) which attach the oil scavenge manifold (135) and the bracket (138) to the lubrication and scavenge oil pump. a) Let the oil drain into the container.
6) Remove the oil scavenge manifold (135) from the engine. a) Discard the packing (137). 7) Install caps on the diffuser case fitting and the open port on the lubrication and scavenge oil pump.
(f) ENGINES POST-PW-SB 73-84 AND POST-PW-SB 79-75; If you will remove the No. 13 fuel injector, remove the oil scavenge hose and manifold assembly (135) for the No. 3 bearing (Fig. 404). 1) Remove the nuts which attach the harness connector (140),
W5P13, to the studs of the oil temperature sensor of the
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本文链接地址：747-400 AMM 飞机维护手册 发动机燃油和控制 1(55)
