(2)
The lower right filter cleans the muscle air supply to the right control valve for the TVBCA.
(3)
The top left filter cleans the muscle air supply to the solenoid for the control valves for the TVBCA and TVCA.
(4)
The lower left filter cleans the muscle air supply to the left control valve for the Turbine Vane Cooling Air.
E.
You can get access to the PS3 air filter assembly through the applicable thrust reverser half.
TASK 75-33-02-004-001-N00
2. Remove the PS3 Air Filter Assembly (Fig. 401)
__________________________________
A. References
(1)
AMM 71-11-04/201, Fan Cowl Panels
(2)
AMM 71-11-06/201, Core Cowl Panels
(3)
AMM 78-31-00/201, Thrust Reverser System
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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////////////////////////A / PW4000 SERIES /747-400 / ENGINES /MAINTENANCE MANUAL ////////////////////////
RIGHT 2.9 BLEED VALVE
SEE A
3. TOP RIGHT
PS3 AIR FILTER
3. LOWER RIGHT
PS3 AIR FILTER SEE B
3. PS3 AIR FILTER FWD
A
(RIGHT HPC 1. NUT SECONDARY FLOW (2 LOCATIONS) CONTROL VALVE
1
OR TURBINE
VANE AND BLADE
COOLING AIR
2. TUBE NUT
VALVE
2
AND 2.9 BLEED
2. TUBE NUT VALVE FILTER)
1.
NUT (2 LOCATIONS)
2.
TUBE NUT
FLANGE J BRACKET FWD
6. CAP
3. PS3 AIR FILTER
ASSEMBLY
4. BOLT (RIGHT HPC SECONDARY (2 LOCATIONS) FLOW CONTROL VALVE FILTER/ 1 TURBINE VANE AND BLADE COOLING AIR
4. BOLT VALVE FILTER) 2 (2 LOCATIONS)
B
1 ENGINES WITHOUT PHASE 3
2 ENGINES WITH PHASE 3
PS3 Air Filter Assembly Installation Figure 401 (Sheet 1)
D19037
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3. TOP LEFT PS3 AIR FILTER
3. LOWER LEFT PS3 AIR FILTER
SEE C
SEE D
FWD LEFT 2.9 BLEED VALVE
C
FIRE DETECTOR1. NUT SUPPORT BRACKET(2 LOCATIONS)
1. NUT
(2 LOCATIONS)
3. PS3 AIR FILTER (TURBINE VANE AND BLADE COOLING AIR
VALVE FILTER)FLANGE J
BRACKET
2. TUBE NUT
2. TUBE NUT
5. BOLT
2. TUBE NUT (2 LOCATIONS)
3. PS3 AIR FILTER 6. CAP ASSEMBLY
(LEFT HPC SECONDARY
FLOW CONTROL VALVE
5. BOLT
FILTER) 1 / (2 LOCATIONS)
TURBINE VANE COOLING
AIR VALVE FILTER 2 .) FWD
D
1
ENGINES WITHOUT PHASE 3
2
ENGINES WITH PHASE 3
PS3 Air Filter Assembly Installation
Figure 401 (Sheet 2)
D19054
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////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
(2)
Access Panel
415 Left Thrust Reverser Half - Engine 1
416 Right Thrust Reverser Half - Engine 1
425 Left Thrust Reverser Half - Engine 2
426 Right Thrust Reverser Half - Engine 2
435 Left Thrust Reverser Half - Engine 3
436 Right Thrust Reverser Half - Engine 3
445 Left Thrust Reverser Half - Engine 4
446 Right Thrust Reverser Half - Engine 4
C.
Prepare to Remove the PS3 Air Filter
S 014-020-N00
中国航空网 www.aero.cn
航空翻译 www.aviation.cn
本文链接地址：747-400 AMM 飞机维护手册 大气 AIR 2(98)
