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AIR SIGNAL TUBE
22. TUBE NUT
2
2. BOLT (4 LOCATIONS)
1. GASKET
AIR SIGNAL TUBE
3. TURBINE BLADE COOLING AIR DUCT22. TUBE NUT
4. METERING PLATE 3
1
21. ADAPTER 4A. RING SPACER 4 FLANGE K
20. GASKET
5. TVBCA VALVE
6. GASKET
18. BOLT
19. BRACKET
17. CLAMP
16. BOLT (7 LOCATIONS)
15. NUT
14. NUT
(4 LOCATIONS) 7. BOLT (6 LOCATIONS)
13. WASHER 9. GASKET
(4 LOCATIONS) 8. TURBINE
12. WIRE BUNDLE 10. BRACKET AIR DUCT VANE COOLING
SUPPORT FWD
BRACKET
11. BOLT (4 LOCATIONS)
B
1
ENGINES WITHOUT PW SB 75-91
2
ENGINES WITH PW SB 75-91
3
ENGINES WITHOUT PW SB 72-537 OR WITH PW SB 72-627
4
ENGINES WITH PW SB 72-537 OR WITHOUT PW SB 72-627
Turbine Vane and Blade Cooling Air Valve Installation (Left Side) Figure 401 (Sheet 2)
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////////////////////////A / PW4000 SERIES /747-400 / ENGINES /MAINTENANCE MANUAL ////////////////////////
FWD
Turbine Vane and Blade Cooling Air Valve Installation (Right Side)
Figure 402 (Sheet 1)
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E27334
6. GASKET 23. BOLT 28. BOLT (4 LOCATIONS) (3 LOCATIONS)
FLANGE K 5. TVBCA VALVE
33. BRACKET
24. BRACKET
9. GASKET
SEE C
7. BOLT (6 LOCATIONS)
TVBCA VALVE
20. GASKET8. TURBINE VANE POSITION SWITCH
COOLING AIR DUCT
21.
ADAPTER
22.
TUBE NUT
4. METERING PLATE 3
1. GASKET AIR SIGNAL4A. RING SPACER 4
TUBE FWD
3. TURBINE BLADE COOLING AIR DUCT
32. BRACKET 1
33. BRACKET 2
2. BOLT (4 LOCATIONS)
B 27. ADJUSTABLE STRUT DRAIN
STRUT LINK ROD END
HPC SECONDARY DRAIN
FLOW CONTROL TVBCA VALVE
27. ADJUSTABLE VALVE SIGNAL SIGNAL TUBE
LINK ROD END TUBE 40. BOLT 29. BOLT
29. BOLT 40. BOLT
26. NUT 26. NUT
39. CLAMP
42. NUT 42. NUT
41. WASHER 41. WASHER 25. NUT 39. CLAMP
25. NUT 30. BOLT
30. BOLT 24. BRACKET
24. BRACKET
TVBCA VALVE 31. CLAMP SIGNAL TUBE
FWD31. CLAMP
FWD
ENGINES WITH PHASE 3 CHANGES
ENGINES WITHOUT PHASE 3 CHANGES C
C
3 ENGINES WITHOUT PW SB 72-537 OR WITH PW SB 72-627
1
ENGINES WITHOUT PW SB 73-164 4 ENGINES WITH PW 72-537
2
ENGINES WITH PW 73-164 OR WITHOUT PW SB 72-627
Turbine Vane and Blade Cooling Air Valve Installation (Right Side) Figure 402 (Sheet 2)
E27531
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