(l)
The engine No. 2 and left inboard flap system
C. Lift the Airplane
S 842-002
(1) Prepare to lift the airplane (Ref 07-11-01/201).
S 862-003
WARNING: USE MUST 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) Do the "Prepare Safety-Sensitive Systems for Air Mode Simulation" procedure (Ref 32-09-02/201).
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A
747-400 MAINTENANCE MANUAL
S 582-004
(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 092-005
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 the stabilizing jacks are installed, remove them.
S 582-014
(5)
Lower the airplane to the ground and put it back to the usual condition (Ref 07-11-01/201).
S 862-006
(6)
Put the air/ground relay system to the ground mode
(Ref 32-09-02/201).
TASK 07-11-07-582-007
3. Jack an Asymmetric 430,000-Pound (195,000-kg) Airplane with CG between 26.5___________________________________________________________________________ to 29% MAC__________
A. References
(1) 07-11-01/201, Jacking Airplane
B. Prepare to Lift the Airplane
S 652-008
CAUTION:_______YOU CAN ONLY REMOVE ONE OF THE ITEMS THAT FOLLOW AT A TIME. IF YOU REMOVE MORE THAN ONE ITEM AT A TIME, YOU CAN CAUSE DAMAGE TO THE EQUIPMENT.
(1) Transfer the fuel as it is necessary as follows to provide a symmetrical airplane.
NOTE: With CG aft of 26.5% MAC and if one of the items that follow
____ will be removed, you must transfer the fuel before the component removal. You must transfer the fuel and remove the component before you lift the airplane on jacks.
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747-400
MAINTENANCE MANUAL
~............................................................... | ITEM | NECESSARY FUEL TRANSFER | ................................................................. | Engine No. 1 | 4000 pounds (1814 kgs) from the | | | main tank No. 4 to the main tank| | | No. 2 | ................................................................. | Engine No. 3 | 4500 pounds (2041 kgs) from the | | | main tank No. 1 to main tank | | | No. 3 | ................................................................. | Engine No. 1 and left | 5,000 pounds (2268 kgs) from | | outboard flap system | the main tank No. 4 to the main | | | tank No. 2 | ................................................................. | Engine No. 3 and right | 2150 pounds (975 kgs) from the | | inboard flap system | main tank No. 1 to the main tank| | | No. 3 | ................................................................. | Engine No. 4 | 11,000 pounds (4990 kgs) from | | | the main tank No. 1 to the main | | | tank No. 3 | ................................................................. | Engine No. 4 and right | 11,800 pounds (5353 kgs) from | | outboard flap system | the main tank No. 1 to the main | | | tank No. 3 | ................................................................. | Engines No. 1 and No. 2 | 12,350 pounds (5602 kgs) from | | | the main tank No. 4 to the main | | | tank No. 2 | ................................................................. | Engines No. 3 and No. 4 | 18,400 pounds (8346 kgs) from | | | the main tank No. 1 to the main | | | tank No. 3 | ................................................................. | Engines No. 3, No. 4, and | 19,000 pounds (8618 kgs) from | | right outboard flap system | the main tank No. 1 to the main | | | tank No. 3 | ................................................................. 中國航空網 m.k6050.com 航空翻譯 www.aviation.cn 本文鏈接地址：747-400 AMM 飛機維護手冊 LIFTING AND SHORING(23)
