747-400 AMM 飞机维护手册 大气 AIR 2(109)

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C. Remove the Filter Element for the PS3 Air
 S 012-022-N00
 (1)  Open the fan cowl panel (AMM 71-11-04/201).
 S 042-028-N00
 WARNING: DO THE THRUST REVERSER DEACTIVATION PROCEDURE TO PREVENT THE
_______ OPERATION OF THE THRUST REVERSER. THE ACCIDENTAL OPERATION OF THE THRUST REVERSER CAN CAUSE INJURIES TO PERSONS OR DAMAGE TO EQUIPMENT.
 (2)  
Do this procedure: Thrust Reverser Deactivation for Ground Maintenance (AMM 78-31-00/201).

 S 012-023-N00

 (3)  
Open the core cowl panel (AMM 71-11-06/201).

 S 012-029-N00
 WARNING: OBEY THE INSTRUCTIONS IN AMM 78-31-00/201 WHEN YOU OPEN THE
_______ THRUST REVERSERS. IF YOU DO NOT OBEY THE INSTRUCTIONS, INJURIES TO PERSONS OR DAMAGE TO EQUIPMENT CAN OCCUR.
 (4)  
Open the thrust reverser (AMM 78-31-00/201).

 S 032-003-N00

 (5)  
Remove the case for the filter element from the head.

 S 022-004-N00

 (6)  
Turn the filter element counterclockwise to remove it from the head assembly.

 S 032-005-N00

 (7)  
Install the protection cap on the head.

 TASK 75-33-05-202-006-N00
 3. Examine the PS3 Air Filter Element (Fig. 201)
__________________________________
 A. References
 (1)  
IPC 75-33-02 Fig. 1

 B.
Access

 (1)  
Location Zone 412 Engine 1 - HPC Fwd Case 1:30 or 11 o'clock 422 Engine 2 - HPC Fwd Case 1:30 or 11 o'clock 432 Engine 3 - HPC Fwd Case 1:30 or 11 o'clock 442 Engine 4 - HPC Fwd Case 1:30 or 11 o'clock

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 75-33-05
 ALL  ú ú N01 Page 203 ú Jun 18/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
(2)  
Access Panel 416 Right Thrust Reverser Half - Engine 1 415 Left Thrust Reverser Half - Engine 1 426 Right Thrust Reverser Half - Engine 2 425 Left Thrust Reverser Half - Engine 2 436 Right Thrust Reverser Half - Engine 3 435 Left Thrust Reverser Half - Engine 3 446 Right Thrust Reverser Half - Engine 4 445 Left Thrust Reverser Half - Engine 4

 C.
Examine the Filter Element

 S 022-007-N00
 (1)  
If it is not done, do this task: "Remove the PS3 Air Filter Element".

 S 212-008-N00

 (2)  
Examine the filter element for signs of contamination which has collected in an area.

 S 112-009-N00

 (3)  
If it is necessary, do this task: "Clean the PS3 Air Filter Element".

 TASK 75-33-05-102-010-N00
 4. Clean the PS3 Air Filter Element (Fig. 201)
________________________________
 A. Standard Tools and Equipment
 (1)  
Air Source - Compressed, Clean, Filtered, Dry -20 psi (138 kPa)

 (2)  
Brush - Stiff Bristle, non-metallic

 B.
Consumable Materials

 (1)  
G00834 Cloth - Cotton, Lint-free

 (2)  
B00534 Solvent - AMSCO 460

 C.
References

 (1)  
IPC 75-33-02 Fig. 1

 D.
Access

 (1)  
Location Zone 412 Engine 1 - HPC Fwd Case 1:30 or 11 o'clock 422 Engine 2 - HPC Fwd Case 1:30 or 11 o'clock 432 Engine 3 - HPC Fwd Case 1:30 or 11 o'clock 442 Engine 4 - HPC Fwd Case 1:30 or 11 o'clock

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 75-33-05
 ALL  ú ú N01 Page 204 ú Jun 10/93
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
(2)  
Access Panel
 416 Right Thrust Reverser Half - Engine 1
 415 Left Thrust Reverser Half - Engine 1
 426 Right Thrust Reverser Half - Engine 2
 425 Left Thrust Reverser Half - Engine 2
 436 Right Thrust Reverser Half - Engine 3
 435 Left Thrust Reverser Half - Engine 3
 446 Right Thrust Reverser Half - Engine 4
 445 Left Thrust Reverser Half - Engine 4

 E.
Clean the Filter Element for the PS3 Air
　
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