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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.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

747-400 MAINTENANCE MANUAL
OVERHEAD CRANE
LOAD POSITIONER
ADJUST-A-LEG SLING COUNTERWEIGHT
SEE C
SPREADER BAR (100HME65B00116)
STRONGBACK
(2 LOCATIONS)
MIDFLAP SEE B
SEEA  SEEA
CLIP
AFTFLAP
(2 LOCATIONS)
(17ME65B00116)

C FLAP TRACK  C FLAP TRACK
L L
STRONGBACK
STRONGBACK
ATTACH BOLT
(2 LOCATIONS)

A
SLIDE CABLE WITH COLLAR TO OBTAIN "A" DIM FOR EACH LIFTING CONDITION
CLIP
-A-
-A-INBOARD
OUTBD LIFTING CONDITION
MIDFLAP
INCHES (mm)
INCHES (mm)
A UPPER
31 3/4
31 3/4SKIN PANEL FORE FLAP
(806.45)

(806.45)
21 1/4

20
MID FLAP CAR. & BOG.
(539.75)
(508.0) 18
18
MID & AFT FLAP
(457.2)
CARRIAGE & BOGGIE 16
(457.2)
14
AFT FLAP
(355.6) SCREW - SIZE 1/4-28 SCREW - SIZE 10-32 (TYPICAL) (TYPICAL) TOOL MOUNTING UPPER SKIN ATTACHING (406.4)
CB
Forward Bogie Installation Tools
Figure 401

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747-400
MAINTENANCE MANUAL

SYM
A-A
Forward Bogie Installation Figure 402
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747-400 MAINTENANCE MANUAL
 2) Remove the nut, the washers and the shims from the pin. 3) Measure and write down the thickness of the shims. 4) Remove the bushings from the bogie.
 (c)  If you must remove the crane, make sure the flap will not move.
 TASK 27-51-43-404-007
 3. Forward Bogie Installation
__________________________
 A. Special Tools and Equipment
 (1)  
10OHME65B00116 - Trailing Edge Flap Spreader Bar

 (2)  
11ME65B00116 - Inboard Midflap Strongback (part of Inboard Trailing Edge Strongback Kit, 18ME65B00116).

 B.
Standard Tools and Equipment

 (1)  
Crane - Overhead

 (2)  
Load Positioner - For 2000 pounds, D228-4HR, Comp Air, Burlingame, California

 C.
Consumable Materials

 (1)  
D00633 Grease - BMS 3-33 (recommended)

 (2)  
D00013 Grease - MIL-G-23827 (alternative)

 D.
References

 (1)  
12-21-20/301, Trailing Edge Flaps System

 (2)  
27-51-02/401, Inboard Foreflap

 (3)  
29-11-00/201, Main Hydraulic Supply System

 E.
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)
 F. Procedure
 S 424-008
 (1)  
Install the forward bogie on the inboard flap (Fig. 402):

 (a)  
Apply a layer of grease on the bushings.

 (b)  
Install the bushings in the bogie.

 (c)  
Install the parts of the bogie, with the shims, and the washers on the airplane.

 (d)  
Install the support pins with the head away from the center of the flap track.

 (e)  
Make sure the clearance between the shims and the bushings is in the tolerance shown on Fig. 402.

 (f)  
Install the washers and the nut on the support pin: 1) Tighten the nuts to 1100-1300 pound-inches (124-147 N-m). 2) Install the bolt and the nut through the nut on the support

 pin.
 3) Tighten the nut.

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