49-14-00
ALL ú ú 06 Page 420 ú Jun 18/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
S 414-162
(5)
Close the APU access doors:
(a)
Do a visual check of the EGT bus bars: 1) Make sure the bus bars are not damaged. 2) Make sure no metal parts touch the bus bars. 3) Make sure the bus bars do not touch each other.
(b)
Disengage the support rods for the APU access doors.
(c)
Put the support rods in the clips on the inner side of the APU access doors.
(d)
Make sure the insulation covers correctly attach to the APU compartment firewall.
(e)
Close the APU access doors.
(f)
Close the latches on the APU access doors.
S 864-163
(6)
Remove the DO-NOT-CLOSE tags and close these circuit breakers:
(a)
P6 Main Power Supply Panel
1) 6K18 APU ALTN CONT
(b)
P83 Panel, E8 Aft Equipment Center
1) APU PRIMARY CONT
S 864-164
(7) Remove the DO-NOT-OPERATE tag from the APU control switch on the P5 panel.
TASK 49-14-00-004-171
6. APU WITHOUT A WIRE HARNESS JUMPER (POST-PWC-SB 16142); APU Front Wire Harness Removal (Fig. 403)______________________________
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-Forward of Air Inlet Plenum on APU Engine, LH
318 APU Compartment-Forward of Air Inlet Plenum on APU Engine, RH
(2)
Access Panel
317AL APU Access Door
318AR APU Access Door
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
49-14-00
ALL ú ú 05 Page 421 ú Oct 18/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
T13 AIR TEMPERATURE SENSOR
2.
NUT
3.
BOLT 1. P20 CONNECTOR
4.
CLAMP
5.
GROMMET
6.
P21 CONNECTOR SEE A
SEE B
7. NUT
SEE C 8. BOLT
9. CLAMP DIVERTER VALVE CONTROL
10.
GROMMET
11.
NUT
12.
BOLT
13.
CLAMP
T12 AIR
TEMPERATURE
OIL LEVEL SENSERSENSOR 14. P19 CONNECTOR 19. P23 CONNECTOR
15.
NUT
16.
BOLT
17.
CLAMP
18.
GROMMET
11.
NUT
12.
BOLT
A
13. CLAMP C36341
APU Front Wire Harness Installation
Figure 403 (Sheet 1)
K66015
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. APU WITHOUT A WIRE HARNESS JUMPER ú
49-14-00
(POST-PWC-SB 16142) ú ú 04 Page 422 ú Oct 18/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
20. P18 CONNECTOR
N1 SPEED SENSOR
21. NUT
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