(o)
Disconnect the P17 connector (37) from the IGV actuator.
(p)
Remove the nut (34), the bolt (35) and the clamp (36) from the bracket on the oil scavenge tube.
(q)
Remove the nut (27), the bolt (28), the clamp (29) and the grommet (30) from the bracket on the upper vent tube.
(r)
Remove the nut (41) and the bolt (42) and the clamp (43) from the bracket on the lower vent tube.
(s)
Disconnect the P22 connector (45) from the J22 connector at the lower bracket (44).
(t)
Remove the four screws (49) that attach the J2 connector (48) to the harness bracket.
(u)
Disconnect the J2 connector (48) from the harness bracket.
(v)
Remove the bolt (46), clamp (47) and lower bracket (44) from the harness bracket.
(w)
Remove the front wire harness from the APU engine.
S 494-176
(5)
Install caps and plugs on all the electrical receptacles and connectors for protection.
S 554-177
(6)
Seal the APU wire harness in a plastic bag.
S 554-178
(7)
Keep the plastic bag in a strong container until it is time to install the wire harness.
TASK 49-14-00-004-179
7. APU WITHOUT A WIRE HARNESS JUMPER (POST-PWC-SB 16142); APU Rear Wire Harness Removal (Fig. 404)_____________________________
A. References
(1)
WDM 49-11-16, 49-11-17, 49-11-18
(2)
SSM 49-11-01
(3)
IPC 49-14-00 Fig. 1
B.
Access
(1)
Location Zone 317 APU Compartment-Aft of Air Inlet Plenum on APU Engine, LH
318 APU Compartment-Aft of Air Inlet Plenum on APU Engine, RH
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49-14-00
ALL ú ú 04 Page 425 ú Oct 18/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
SEE A 4. P10 CONNECTOR
1.
BOLT
2.
SPACER
3.
CLAMP
20.
BOLT
21.
SPACER
22.
CLAMP
OIL TEMPERATURE
GROUND WIRE (REF) SENSOR
19. P11 CONNECTOR 20. BOLT 6. P7 CONNECTOR
22. CLAMP 5. P5 CONNECTOR
OIL PRESSURE SWITCH 18. P12 CONNECTOR
17. P9 CONNECTOR
SEE B
7.
NUT
8.
BOLT
9.
CLAMP
SEE C
10.
P3 CONNECTOR
11.
BOLT
15. BOLT
12. CLAMP
16. CLAMP
(2 LOCATIONS)
14. J1 CONNECTOR
13. SCREWS (4 LOCATIONS)
A
C36330
APU Rear Wire Harness Installation Figure 404 (Sheet 1)
K64946
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49-14-00
(POST-PWC-SB 16142) ú ú 04 Page 426 ú Oct 18/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 747-400 MAINTENANCE MANUAL
IGNITION
23. P6 CONNECTOR
EXCITER
1
2
B 24. NUT 27. GROMMET 26. CLAMP 25. BOLT
28. NUT 30. CLAMP 29. BOLT
31. P4 CONNECTOR
41. P22 CONNECTOR 40. SCREW (4 LOCATIONS) 39. J22 CONNECTOR 38. CLAMP 37. SPACER 36. BOLT 35. NUT 34. CLAMP 33. BOLT 32. NUT
2 1 POST-PWC-SB 16202 PRE-PWC-SB 16202 C C36340 (MOD)
APU Rear Wire Harness Installation
Figure 404 (Sheet 2)
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49-14-00
(POST-PWC-SB 16142) ú ú 04 Page 427 ú Oct 18/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
K62633
A
747-400
MAINTENANCE MANUAL
(2) 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：747-400 AMM 飞机维护手册 机载辅助动力 1(94)
