(2)
AIPC 28-31-04 Fig. 5
(3)
SSM 28-31-01
(4)
WDM 28-31-12
B.
Access
(1)
Location Zones
135 Wing Landing Gear Well, Left
136 Wing Landing Gear Well, Right
C.
Procedure
(1)
Make sure the ground lockpins for the landing gear are installed.
S 864-002
S 494-003
WARNING: USE THE PROCEDURE IN AMM 32-00-30/201 TO INSTALL THE DOOR
_______ LOCKS. THE DOORS OPEN AND CLOSE QUICKLY AND CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
(2) Install the wing and body gear door locks (AMM 32-00-30/201).
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A 747-400 MAINTENANCE MANUAL
(3) S 864-070Open the applicable circuit breaker and attach a DO-NOT-CLOSE tag: (a) P6 Main Power Distribution Panel 1) 6E17, CTR R & MAIN 2 JTSN VLV 2) 6F17, CTR R & MAIN 3 JTSN VLV
(4) S 034-005Disconnect the electrical connector (2) from the actuator (1).
NOTE:____ Refer to this table for the equipment numbers.
~................................................................. | | Equipment Number | | Location ............................ | | Valve | Connector | ................................................................... | Center Wing Tank - Left | V53 | DV53 | ................................................................... | Center Wing Tank - Right | V52 | DV52 | 2......................................…...........…..............1
(5) S 034-006Remove the screw (5), washers (6), and nut (8) that attach the bonding jumper (7) to the bonding lug on the actuator (1).
(6) S 864-007Make sure the manual override lever on the actuator (1) is in the closed position.
(7) S 034-008Remove the screws (3) and washers (4) (four locations) that attach the actuator (1) to the mounting bolts on the valve body.
(8) S 024-009Disengage the shaft with splines from the valve body to remove the actuator.
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A
747-400
MAINTENANCE MANUAL
ACTUATOR OF THE FUEL JETTISON TRANSFER VALVE
SEE A
REAR SPAR
VALVE BODY
1. ACTUATOR
2. ELECTRICAL MANUAL
CONNECTOR OVERRIDE LEVER
MOUNTING
BOLT ON
8. NUTTHE VALVEFWD 3. SCREWBODY (EXAMPLE) 6. WASHER (4 LOCATIONS)
7. BONDING
4. WASHER JUMPER (4 LOCATIONS)
ACTUATOR OF THE FUEL
6. WASHER 5. SCREW
JETTISON TRANSFER VALVE
A
Fuel Jettison Transfer Valve Actuator (Center Wing Tank)
Figure 401
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A
747-400 MAINTENANCE MANUAL
TASK 28-31-04-404-010
3. Fuel Jettison Transfer Valve Actuator in the Center Wing Tank Installation
__________________________________________________________________________
(Fig. 401)
A. Equipment
(1)
Bonding Meter (SWPM 20-20-00) Approved for use in fuel vapor areas
B.
Parts
~.............................................................................. | AMM | | AIPC | ................. ............................ | FIG | ITEM | NOMENCLATURE | SUBJECT | FIG | ITEM | ................................................................................ | 401 | 1 | Actuator | 28-31-04 | 05 | 5 | | | 3 | Screw *[1] | | | | | | 4 | Washer | | | | | | 5 | Screw | | | | | | 7 | Washer | | | | | | 8 | Nut | | | | 2......…........…...................................…..........….....….........1
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