B.
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
(4)
AMM 79-35-01/401, Oil Filter Differential Pressure Switch
(5)
AIPC 26-21-55, Fig. 3, AIPC 36-11-61, Fig. 1, AIPC 71-00-50, Fig. 1, AIPC 71-71-01, Fig. 1, AIPC 72-61-00, Fig. 1, AIPC 72-61-11, Fig. 1, AIPC 79-21-01, Fig. 15, AIPC 79-21-05, Fig. 5, AIPC 79-21-06, Fig. 1, AIPC 79-21-51, Fig. 5, AIPC 79-35-01, Fig. 1
C.
Access
(1)
Location Zone 412 Engine 1 - Main Gearbox Fwd Face 8 o'clock 422 Engine 2 - Main Gearbox Fwd Face 8 o'clock 432 Engine 3 - Main Gearbox Fwd Face 8 o'clock 442 Engine 4 - Main Gearbox Fwd Face 8 o'clock
(2)
Access Panel 415 and 416 Thrust Reverser Halves - Engine 1 425 and 426 Thrust Reverser Halves - Engine 2 435 and 436 Thrust Reverser Halves - Engine 3 445 and 446 Thrust Reverser Halves - Engine 4
D.
Procedure (Fig. 401 and 402)
(1)
Open the fan cowl panels (AMM 71-11-04/201).
S 014-026-N00
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////////////////////////A / PW4000 SERIES /747-400 / ENGINES /MAINTENANCE MANUAL ////////////////////////
SEE A
PNEUMATIC
FIRE EXTINGUISHING TUBE NUTS
TUBE NUT
1. MAIN OIL HOUSING FILTER GEARBOX MAIN SEE B OIL TANK FWD
A
Figure 401 (Sheet 1) Pneumatic Tubes Installation
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SCREW3. SCREW5. WASHER6.
(2 LOCATIONS) WASHER6. FIRE7.
COOLER FUEL/OIL 2. WASHER SCREW5. SCREW5. EXTINGUISHING TUBE ASSEMBLY
(2 LOCATIONS) WASHER6.
4.NUT
14.SPACER
(2 LOCATIONS)
4.NUT 4.NUT
13.DRAIN TUBE SEE C
8.SCREW
9.WASHER
BRACKET
12. BRACKET 10.NUT
SEE D
11.CLAMP PNEUMATIC TUBE10. NUT
BLOCK NUT (ATTACHED
(2 LOCATIONS) MAIN GEARBOX
SEE F ASSEMBLY TO THE DIFFUSER CASE)SEE E
FWD B
8.SCREW (3 LOCATIONS)
9.WASHER
8.SCREW (3 LOCATIONS) (4 LOCATIONS)
19. PNEUMATIC TUBE
9. WASHER (4 LOCATIONS)
18.PNEUMATIC TUBE ASSEMBLY
17. PNEUMATIC TUBE
10.NUT 16.PNEUMATIC
(3 LOCATIONS) TUBE
15. PNEUMATIC 10.NUT
TUBE D
C
(4 LOCATIONS)
Pneumatic Tubes Installation
Figure 401 (Sheet 2)
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////////////////////////A / PW4000 SERIES /747-400 / ENGINES /MAINTENANCE MANUAL ////////////////////////
21. OIL SYSTEM PRESSURE RELIEF 10. NUT VALVE
9. WASHER
SEE G
20. OIL FILTER OUTLET 4. NUTPRESSURE TUBE (2 PLACES)
10. NUT 9. WASHER
(2 PLACES) (2 PLACES)
28. CLAMP BLOCK
22. CLAMP ASSEMBLY
8.
SCREW (2 PLACES)
9.
WASHER
23. BOLT
22. CLAMP (2 PLACES)
18. PNEUMATIC
27. SPACER
(2 PLACES) TUBE
SEE H HIGH PRESSURE
2. WASHER CONTROLLER
(2 PLACES) 17. PNEUMATIC TUBE
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