(2)
AMM 32-00-30/201, Landing Gear Door Locks
(3)
AIPC 28-25-01 Fig. 2
(4)
SSM 28-25-03
(5)
WDM 28-25-31
B.
Access
(1)
Location Zone 571 Rear Spar to Landing Gear Support Beam, Left
C.
Procedure
S 864-002
(1) Make sure the ground locks for the landing gear are installed.
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).
S 864-004
(3)
Open this circuit breaker and attach a DO-NOT-CLOSE tag:
(a)
P6 Main Power Distribution Panel
1) 6G5, FUEL SHUTOFF VALVE APU
S 034-005
(4)
Disconnect the electrical connector DV119 (3) from the valve actuator (4).
(5)
Remove the bonding jumper (5) from the actuator (4).
S 034-006
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 747-400 MAINTENANCE MANUAL
(6) S 034-007Remove the screws (2) and washers (1) which attach the actuator (4) to the valve body mounting bolts.
(7) S 024-008Remove the actuator.
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
APU FUEL SHUTOFF VALVE ACTUATOR SEE A
REAR SPAR
VALVE BODY MOUNTING BOLT (4 LOCATIONS)
1. WASHER
(4 LOCATIONS)
VALVE
2. SCREWBODY (4 LOCATIONS)
3.
ELECTRICAL CONNECTOR DV119
4.
ACTUATOR V119
5. BONDING
MANUAL
JUMPER
OVERRIDE LEVER
FWD
A
APU Fuel Shutoff Valve Actuator Installation Figure 401
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
TASK 28-25-02-404-009
3. APU Fuel Shutoff Valve Actuator Installation (Fig. 401)
____________________________________________
A. Equipment
(1)
Bonding Meter (SWPM 20-20-00) approved for use in fuel vapor areas
B.
Parts
~.............................................................................. | MM | | IPC | ................. ............................ | FIG | ITEM | NOMENCLATURE | SUBJECT | FIG | ITEM | ................................................................................ | 401 | 1 | Washer | 28-25-01 | 02 | 40 | | | 2 | Screw | | | 35 | | | 4 | Actuator | | | 30 | 2......…........…...................................…..........….....….........1
C. References
(1)
AMM 24-22-00/201, Manual Control
(2)
AMM 32-00-30/201, Landing Gear Door Locks
(3)
SWPM 20-20-00, Electrical Bond and Ground
D.
Access
(1)
Location Zone 571 Rear Spar to Landing Gear Support Beam, Left
E.
Procedure
S 114-026
(1)
Prepare these surfaces for an electrical surface bond (SWPM 20-20-00):
(a)
Faying surface of the valve actuator and valve body mounting bolts.
(b)
Faying surface of the bonding jumper and bonding jumper tab.
S 424-010
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