10.
TASK 27-31-03-004-001
2. Nonreaction Hinge Removal (Fig. 401)_________________________
A. References
(1)
AMM 06-09-06/201, Stabilizer and Elevator Access Doors and Panels
(2)
AMM 24-22-00/201, Manual Control
(3)
AMM 29-11-00/201, Main Hydraulic Supply System
(4)
AIPC 29-31-09, Fig. 1
(5)
AIPC 55-20-03, Fig. 1
(6)
AIPC 55-20-04, Fig. 1
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
27-31-03
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
B. Access
(1)
Location Zone
335 Inboard Elevator, LH
345 Inboard Elevator, RH
336 Outboard Elevator, LH
346 Outboard Elevator, RH
(2)
Access Panel
335BBL Leading Edge Hinge Maintenance Access Door
345BBR Leading Edge Hinge Maintenance Access Door
335JBL Leading Edge Hinge Maintenance Access Door
345JBR Leading Edge Hinge Maintenance Access Door
336BBl Leading Edge Hinge Maintenance Access Door
346BBR Leading Edge Hinge Maintenance Access Door
336JBL Leading Edge Hinge Maintenance Access Door
346JBR Leading Edge Hinge Maintenance Access Door
336MBL Leading Edge Hinge Maintenance Access Door
346MBR Leading Edge Hinge Maintenence Access Door
336QBL Leading Edge Hinge Maintenence Access Door
346QBR Leading Edge Hinge Maintenance Access Door
C.
Prepare for Removal
S 864-002
(1)
Apply external power to the AC buses (AMM 24-22-00/201).
S 864-003
(2)
Set all FLT CONTROL HYD POWER TAIL switches on the P461 Pilots' Overhead Maintenance Panel in SHUTOFF.
S 864-005
(3)
Set the STAB TRIM 2 and 3 switches on the control stand to CUTOUT.
S 864-006
(4)
Open these circuit breakers and attach DO-NOT-CLOSE tags:
(a)
P180, DC Power Distribution Panel
1) 180H8, ELEV/RUD VLV SYS 1
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A 747-400 MAINTENANCE MANUAL
(b) 2) 180E7, ELEV/RUD VLV SYS 2 3) 180H23, ELEV/RUD VLV SYS 3 4) 180E22, ELEV/RUD VLV SYS 4P7, Overhead Circuit Breaker Panel 1) 7E7, L STAB TRIM S/O VLV 2) 7E20, R STAB TRIM S/O VLV
S 864-007
(5) Remove external power from the AC buses if it is not necessary (AMM 24-22-00/201).
S 864-008
(6) Manually move the elevator to the full up position.
S 864-054
(7) For the inboard elevator; Move the control column to follow the elevator movement.
S 864-055
(8) For the outboard elevator; Move the outboard elevator PCP summing lever to follow the elevator movement.
S 014-009
(9) Remove these hinge access panels if it is necessary (AMM 06-09-06/201): ~........................................................
| Hinge No. 1 | panel 335BB left, or 345BB right. | ..........................................................
| Hinges No. 2 and 3 | panel 335DB left, or 345DB right | ..........................................................
| Hinge No. 4 | panel 335JB left, or 345JB right | ..........................................................
| Hinge No. 5 | panel 336BB left, or 346BB right | ..........................................................
| Hinges No. 6 and 7 | panel 336DB left, or 346DB right | ..........................................................
| Hinge No. 8 | panel 336JB left, or 346JB right | ..........................................................
| Hinge No. 9 | panel 336MB left, or 346MB right | ..........................................................
| Hinge No. 10 | panel 336QB left, or 346QB right | 2....................…...................................1
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