747-400 AMM 飞机维护手册 飞行操纵 FLIGHT CONTROLS 7(100)

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3. GEARBOX
2. KRUEGER FLAPS
4. PDU 39. SCREW
1. VARIABLE CAMBER FLAPS  NO. 4 (2 LOCATIONS)
SEE A
SEE A 40. SPLINE
5. PDU NO. 3
SEE A
DRIVE
6. PDU NO. 2 SHAFT
7. PDU NO. 1
SEE A

41. COUPLING SLEEVE
8.
 ALTERNATE SOLENOID VALVE

9.
 SCREW

DRIVE UNIT
10.  
WASHER

11.  
O-RING

B
12.  ELECTRICAL CONNECTOR, P202
38. RECTIFIER AND PRIMARY DRIVE  13. MAIN PRIMARY (PNEUMATIC)
SOLENOID VALVE ASSEMBLY DRIVE POWER CONNECTOR

SEE D
14. SLEEVE 16. PNEUMATIC 37. ELECTRICAL CONNECTOR, 15. O-RING DUCTP203
36. ALTERNATE ELECTRIC
MOTOR

35. ALTERNATE ELECTRIC MOTOR MOUNTING BOLT
B
(3 LOCATIONS)
34. WASHER
B
(3 LOCATIONS) 17. DRIVE UNIT MOUNTING BOLT
18. WASHER 33. MAIN ALTERNATE (2 LOCATIONS)
(EMERGENCY) DRIVE
POWER CONNECTOR

19.
 OVERPRESSURE SWITCH

20.
 O-RING

21.
 ELECTRICAL CONNECTOR,

22.
 PLUG

P103

23.
 PACKING

32. DRIVE 24. SERVOMOTOR AND
SHAFT
SWITCH ASSEMBLY

SEE B
SEE C

27.
 MOUNTING 25. PLUG

28.
 BOLT

1 AIRPLANES WITH THE DRIVELUG 26. PACKING29. WASHER UNIT 60B80042-36 OR
30. CLAMP-UP BUSHING  A LOWER DASH NUMBER
31. NUT
Power Drive Unit and Components Installation
Figure 201 (Sheet 1)

F20544
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A

747-400 MAINTENANCE MANUAL
MOUNTING47. GROUNDING LUG SCREW
42. SERVOMOTOR 
MOUNTING SCREW 
43. WASHER 
46. CONNECTOR MOUNTING  44. SERVOMOTOR (4 LOCATIONS) 
BRACKET  ELECTRICAL  SERVOMOTOR 
CONNECTOR, P101 
A-A 

A
45. WIRE BUNDLE CLIP (2 LOCATIONS)
A
24. SERVOMOTOR
ELECTRICAL CONNECTOR, P201
SOLENOID SWITCH
VALVE 55. O-RING
SERVOMOTOR AND SWITCH ASSEMBLY
ASSEMBLY
C
48. MOUNTING SCREW (4 LOCATIONS)
B
49. RECTIFIER
B
DRIVE UNIT
50. MOUNTING SCREW
B-B
51.
 WASHER

52.
 NUT (2 LOCATIONS)

54. SOLENOID 53. ELECTRICAL VALVE CONNECTOR, P102
RECTIFIER AND PRIMARY DRIVE SOLENOID VALVE ASSEMBLY
D
Power Drive Unit and Components Installation Figure 201 (Sheet 2)
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL

SEAL
C
C-C
C
56. ALTERNATE DRIVE MOTOR SEAL
Power Drive Unit and Components Installation
Figure 201 (Sheet 3)

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
VARIABLE CAMBER DRIVE UNIT DRIVE UNIT
FLAPS  NO. 2 NO. 3
DRIVE UNIT 
NO. 1  SEE  A  SEE  A  SEE  A 
FLAP LINKAGE 
(USAL) 
FIT THE RIGGING BAR END 
THROUGH NOTCH BEHIND THE  RIGGING DIMENSION 
THE CHORD LINE SEAL CHANNEL AGAINST  DRIVE UNIT NO.  FLAP NO.  DIMENSION X  DIMENSION Y 
A  (|0.030 INCHES)  (|0.030 INCHES) 
1L AND 1R  2 AND 25 (INBD LINKS)  30.88  30.79 
FWD  CHORD  2L AND 2R  7 AND 20 (INBD LINKS)  35.73  35.64 
3L AND 3R  9 AND 18 (INBD LINKS)  35.79  35.70 

0.120
　
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