C.  
Access

 (1)  
Location Zone
 512 Krueger Flap Inboard, LH
 513 Krueger Flap Midflap, LH
 514 Krueger flap Outboard, LH
 612 Krueger Flap Inboard, RH
 613 Krueger Flap Midflap, RH
 614 Krueger flap Outboard, RH

 D.  
Procedure

 S 026-002
 (1)
Do this task: "Krueger Flap Removal" (AMM 27-81-01/401).

 S 226-003

 (2)  
Examine the krueger flaps (Fig. 601):

 (a)  
Remove the parts to be examined.

 (b)  
Use a micrometer to measure the dimensions of these parts.

 (c)  
Compare the part dimensions to the limit dimensions.

 (d)  
If the part dimension is out of tolerance, replace the part.

 (e)  
Install all the parts removed to do the check.

 (3)
Do this task: "Krueger Flap Installation" (AMM 27-81-01/401).

 S 426-004
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 27-81-01
 ALL  ú ú 01 Page 601 ú Jun 18/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL

DRIVE 
SHAFT  A  DRIVE 
UNIT 
ROTARY 
ACTUATOR 
(2 LOCATIONS)
ACTUATOR 
LINK 
(2 LOCATIONS) 
F 
A  F 
KRUEGER 
FLAP 
DRIVE 
SHAFT 
C 
KRUEGER  C 
FLAP 
B 
B 
DE 
D 
E 
A-A 
Krueger Flaps Wear Limits 
Figure 601 (Sheet 1) 

EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 27-81-01
 ALL  ú ú 01 Page 602 ú Feb 10/91
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL

Krueger Flaps Wear Limits
Figure 601 (Sheet 2)

EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 27-81-01
 ALL  ú ú 01 Page 603 ú Feb 10/91
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 747-400 MAINTENANCE MANUAL
13. BUSHING/BOLT (2 LOCATIONS)

11. BUSHING/BUSHING (2 LOCATIONS)
10. BUSHING/BOLT
(2 LOCATIONS)

F-F
Krueger Flaps Wear Limits
Figure 601 (Sheet 3)

EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 27-81-01
 ALL  ú ú 01 Page 604 ú Feb 10/91
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL

INDEX NO.  PART NAME  DIM.  DESIGN LIMITS  WEAR LIMITS  REPLACE PART WORN  REPAIR WORN PART  REPAIR INSTR 
DIAMETER  WEAR PER-DIM. MITTED  DIA MAX CLEAR-ANCE
MIN  MAX 
1  BEARING  ID  0.7495  0.7500  0.7540  0.0050  X 
BOLT  OD  0.7480  0.7490  0.7445  X 
2  BUSHING  ID  0.7495  0.7505  0.7540  0.0050  X 
BOLT  OD  0.7480  0.7490  0.7445  X 
3  BEARING  ID  0.4995  0.5000  0.5045  0.0050  X 
BOLT  OD  0.4985  0.4995  0.4945  X 
4  BUSHING  ID  0.4995  0.5005  0.5055  0.0060  X 
BOLT  OD  0.4985  0.4995  0.4935  X 
5  BUSHING  ID  0.4995  0.5010  0.5055  1 0.0060  X 
BOLT  OD  0.4985  0.4995  0.4935  X 
　
中國航空網(wǎng) 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 7(81)