07-11-07
ALL ú ú 01 Page 204 ú Jun 15/98
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
~............................................................... | ITEM | NECESSARY FUEL TRANSFER | ................................................................. | Engines No. 1, No. 2, and | 13,200 pounds (5988 kgs) from | | left outboard flap system | the main tank No. 4 to the main | | | tank No. 2 | 2.............................….................................1
C. Lift the Airplane
S 842-009
(1) Prepare to lift the airplane on jacks (Ref 07-11-01/201).
S 862-010
WARNING: REFER TO 32-09-02/201 TO PUT THE AIR/GROUND RELAY SYSTEM IN THE
_______ AIR MODE. AUTOMATIC OPERATION OF AIRPLANE SYSTEMS IN THE AIR MODE CAN CAUSE INJURY OR DAMAGE.
(2)
Put the air/ground relay system in the air mode (Ref 32-09-02/201).
S 582-011
(3)
Lift the airplane with the jacks (Ref 07-11-01/201).
NOTE: If one of the items in par. 2.B. was removed before the
____ airplane was lifted, the load on each jack pad will be different. Monitor the jack pad loads to make sure the maximum load is not more than the approved limit. When the airplane is on jacks and the stabilizing jacks are installed, the load must not be more than 2000 pounds (900 kg). This is to make sure the loads on the primary jacks are not more than the approved limits.
S 092-012
CAUTION: IF YOU INSTALLED THE STABILIZING JACKS, REMOVE THEM BEFORE YOU
_______ LOWER THE AIRPLANE. YOU MUST REMOVE THEM TO PREVENT STRUCTURAL DAMAGE TO THE AIRPLANE.
(4)
If you installed the stabilizing jacks, remove them.
S 582-015
(5)
Lower the airplane to the ground and put it back to the usual condition (Ref 07-11-01/201).
S 862-013
(6)
Put the air/ground relay system to the ground mode
(Ref 32-09-02/201).
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07-11-07
ALL ú ú 01 Page 205 ú Jun 15/98
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
CARGO AND FUEL LOADING SUPPORT - MAINTENANCE PRACTICES
______________________________________________________
1. General_______
A. This procedure contains two tasks. The first task is to install a support stanchion to hold the airplane when you load cargo or fuel. The second task is to install a jack at jack point III to hold the airplane when you load cargo or fuel.
B. The primary function of tail support is to prevent the airplane tail from moving down if an aft center of gravity (referred to as CG) condition occurs. The operator should develop procedures for the loading and unloading of cargo and fuel which will make tail support not necessary.
C. Tail support is recommended during cargo loading and unloading or fueling operations if you will not do steps to control the airplane CG movement.
D. You must keep the airplane CG between the limits given in the Weight and Balance Manual.
E. The tail support stanchion has a standard 15-ton (13,600-kg) wing tip jack that has modifications and is equipped with a special headstock. The headstock connects to a 2-inch (5 centimeter) diameter ball connected to the airplane at jack point III on the aft fuselage.
F. You must follow the limits shown in MM 10-11-03/201, Fig. 201, when you use the Tail Support Stanchion in high winds.
TASK 07-11-08-492-001
2. Tail Support Stanchion Installation___________________________________
A. Special Tools and Equipment
(1)
Tail Support Stanchion - (Commercially Available)
(2)
65B16363-1M-556087F Stanchion Support Fitting for RM852.
B. Access
(1) Location Zone
314 Stabilizer Torsion Box Compartment, RH (Aft Jack Point) Station 2596, Right Buttock Line 30
C. Prepare to Install the Support Stanchion (Fig. 201).
S 212-002
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