(a)  
Remove the bolt (5), washers (10 and 17) and nut (11).

 (b)  
Remove the actuator rod and the washer (9) from the midflap crank.

 (c)  
Remove the bushing (16) from the midflap crank.

 S 934-009
 (8)  Install a tag on the midflap crank with the track number.
 TASK 27-51-39-004-010
 3. Pushrod Removal
_______________
 A. References
 (1)  
AIPC 27-51-39 Fig. 1

 (2)  
AIPC 27-51-39 Fig. 4

 B.
Access

 (1)  
Location Zone 563 Outboard Flap Track Fairing, Inboard Flap, LH (Track No. 3) 561 Inboard Flap Track Fairing, Inboard Flap, LH (Track No. 4) 661 Inboard Flap Track Fairing, Inboard Flap, RH (Track No. 5)

 663  Outboard Flap Track Fairing, Inboard Flap, RH (Track No. 6)
 C. Procedure
 S 034-011
 (1)  Do this task: "Midflap Crank Removal" (Ref Paragraph 2).
 NOTE:  It is not necessary to disconnect the actuator rod from the
____ midflap crank to remove the pushrod.
 S 024-012
 (2)  
Remove the pushrod (Section D-D, Fig. 401):

 (a)  
Remove the bolt (26), washer (27), and nut (11) from the geneva cam (18).

 (b)  
Remove the pushrod and the washer (9) from the geneva cam.

 (c)  
Remove the bushing (7) from geneva cam.

 TASK 27-51-39-004-013
 4. Actuator Rod Removal
____________________
 A. References
 (1)  AIPC 27-51-39 Fig. 1
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 27-51-39
 ALL  ú ú 01 Page 410 ú Oct 18/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL

 (2)  
AIPC 27-51-39 Fig. 4

 B.
Access

 (1)  
Location Zone 563 Outboard Flap Track Fairing, Inboard Flap, LH (Track No. 3) 561 Inboard Flap Track Fairing, Inboard Flap, LH (Track No. 4) 661 Inboard Flap Track Fairing, Inboard Flap, RH (Track No. 5)

 663  Outboard Flap Track Fairing, Inboard Flap, RH (Track No. 6)
 C. Procedure
 S 034-014
 (1)  Do this task: "Midflap Crank Removal" (Ref Paragraph 2).
 NOTE:  It is not necessary to disconnect the pushrod from the
____ midflap crank to remove the actuator rod.
 S 024-015
 (2)  
Remove the actuator rod (Detail G, Fig. 401):

 (a)  
Remove the bolt (80), washers (81), and nut (82) from the aftflap fitting.

 (b)  
Remove the pushrod from the aftflap fitting.

 (c)  
Remove the bushing (83) from the aftflap fitting.

 TASK 27-51-39-004-120
 5. Midflap Crank Attach Fitting Removal
____________________________________
 A. References
 (1)  
AIPC 27-51-39 Fig. 1

 (2)  
AIPC 27-51-39 Fig. 4

 B.
Access

 (1)  
Location Zone 563 Outboard Flap Track Fairing, Inboard Flap, LH (Track No. 3) 561 Inboard Flap Track Fairing, Inboard Flap, LH (Track No. 4) 661 Inboard Flap Track Fairing, Inboard Flap, RH (Track No. 5)

 663  Outboard Flap Track Fairing, Inboard Flap, RH (Track No. 6)
 C. Procedure
 S 034-016
 (1)  Do this task: "Midflap Crank Removal" (Ref Paragraph 2).
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 27-51-39
 ALL  ú ú 01 Page 411 ú Oct 18/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 S 024-017
 (2)
Remove the midflap crank attach fitting (Detail E, Fig. 401):

 (a)  
On the inboard track, remove the bolts (65), washers (64, 66, and 69), shims (68), and spacers (67 and 70).

 (b)  
On the outboard track, remove the bolts (72 and 76), washers (71, 73, and 77), shims (75 and 79), and spacers (74 and 78).

 (c)  
Remove the midflap fitting.

 (d)  
Measure and write down the thickness of the shims.
　
中國航空網 www.k6050.com
航空翻譯 www.aviation.cn
本文鏈接地址：747-400 AMM 飛機維護手冊 飛行操縱 FLIGHT CONTROLS 5(84)