~.............................................................................. | AMM | | IPC | ................. ............................ | FIG | ITEM | NOMENCLATURE | SUBJECT | FIG | ITEM | ................................................................................ | 401 | 1 | Actuator | 28-22-01| 02 | 5 | 2......…........…...................................…..........….....….........1
C. References
(1)
AMM 24-22-00/201, Manual Control
(2)
AMM 27-81-00/201, Leading Edge Flap System
(3)
SWPM 20-20-00, Electrical Bond and Ground
(4)
SSM 28-22-01
(5)
WDM 28-22-11, WDM 28-22-12, WDM 28-22-13, WDM 28-22-14
D.
Access
(1)
Location Zones
521 Leading Edge to Front Spar, Left
621 Leading Edge to Front Spar, Right
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A
747-400 MAINTENANCE MANUAL
NO. 2 AND NO. 3 ENGINE SPAR VALVE ACTUATOR
SEE A
3. SCREW (4 LOCATIONS)
NO. 1 AND NO. 4 4. WASHER ENGINE SPAR (4 LOCATIONS) VALVE ACTUATOR
FAYING
SURFACE 1
SEE B MANUAL OVERRIDE LEVER
FRONT FAYING
SPAR SURFACE 2
INDEX
ADAPTER PLATE 6. WASHER
PLATE 5. NUT
NO. 2 AND NO. 3 ENGINE SPAR VALVE ACTUATOR A
PREPARE THE FAYING SURFACE OF THE INDEX PLATE AND VALVE ACTUATOR FOR AN ELECTRICAL SURFACE BOND (SWPM 20-20-00).
1
PREPARE THE FAYING SURFACE OF THE BONDING JUMPER AND BONDING JUMPER TAB FOR AN ELECTRICAL SURFACE BOND (SWPM 20-20-00).
2
Engine Spar Valve Actuator Figure 401 (Sheet 1)
2. ELECTRICAL CONNECTOR
1. ACTUATOR
8. SCREW
6.
WASHER
7.
BONDING
UP
JUMPER
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
JUMPER 7. BONDING FAYING SURFACE 6. WASHER 2 INDEX PLATE 5. NUT PLATE ADAPTER SPAR FRONT
6. WASHER 8. SCREW
1. ACTUATOR
2. ELECTRICAL CONNECTOR (4 LOCATIONS) LEVER MANUAL OVERRIDE 4. WASHER UP FAYING SURFACE 1
3. SCREW (4 LOCATIONS)
B NO. 1 AND NO. 4 ENGINE SPAR VALVE ACTUATOR
NOTE: THE NO. 1 AND NO. 4 ENGINE SPAR VALVES ARE INSTALLED ROTATED 180` COMPARED TO THE NO. 2 AND NO. 3 ENGINE SPAR VALVES.
Figure 401 (Sheet 2) Engine Spar Valve Actuator
L08983
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
(2)
Access Panels
521EB Lower Skin Leading Edge Access Panel
621EB Lower Skin Leading Edge Access Panel
E.
Install the Engine Spar Valve Actuator
S 214-062
(1)
Make sure the TOP position marker on the adapter plate is correct:
(a)
No. 2 and 3 engine spar valve - TOP position marker is at the top of the adapter plate.
(b)
No. 1 and 4 engine spar valve - TOP position marker is at the bottom of the adapter plate.View B-B).
S 114-058
(2)
Prepare these surfaces for an electrical surface bond
(SWPM 20-20-00):
(a)
Faying surface of the index plate and valve actuator.
(b)
Faying surface of the bonding jumper and bonding jumper tab.
S 824-061
(3)
Do these steps to align the actuator:
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