747-400 AMM 飞机维护手册 机翼 WINGS(27)

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 (1)  Location Zone 572 Landing Gear Support Beam and Rear Spar to Trailing Edge, Left
 672  Landing Gear Support Beam and Rear Spar to Trailing Edge, Right
 E. Prepare to Adjust the Panel
 S 845-029
 WARNING: OPEN THE CIRCUIT BREAKERS TO PREVENT RETRACTION OF THE
_______ SPOILERS. THE SPOILERS WILL RETRACT AUTOMATICALLY IF YOU USE THE SPEED BRAKE LEVER TO LIFT THE SPOILERS AND IF HYDRAULIC SYSTEM NO. 1 AND 4 ARE NOT PRESSURIZED. INJURY TO PERSONS CAN OCCUR IF THE SPOILERS RETRACT.
 (1)  
Open the 7G6 SPEED BRAKE AUTO CONT circuit breaker on the P7 Overhead Circuit Breaker Panel.

 S 845-025

 (2)
Pressurize the hydraulic systems No. 1 and 4 (AMM 29-11-00/201).

 S 845-026

 (3)  
Put the speed brake control lever in the UP detent to lift the spoilers No. 5 through 8 above the inboard flap.

 S 845-027

 (4)  
Install the spoiler actuator locking tools or move the FLT CONTROL HYD POWER switches to SHUTOFF to prevent retraction of the spoilers.

 S 845-028

 (5)  
Release the pressure in the hydraulic systems No. 1 and 4 (AMM 29-11-00/201).

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747-400
MAINTENANCE MANUAL

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747-400
MAINTENANCE MANUAL

+0.010.50 INCH  0.50-INCH SPACER BLOCK, 
-0.01  PUT IMMEDIATELY AHEAD 
OF CREASE POINT  CREASE  STRAIGHTEDGE 
POINT  (144 INCHES)  FIXED TRAILING 
EDGE UPPER PANEL 

0.50-INCH SPACER BLOCK
LANDING GEAR BEAM
VERTICAL SEE THE TABLE FOR TIE ROD THE CLEARANCE (INCLUDES 0.50-INCH DIAGONAL THICKNESS OF THE
FWD
TIE ROD  SPACER BLOCKS)
NOTE: MEASURE THE DIMENSION AT A RIGHT ANGLE TO THE STRAIGHT EDGE.
TORQUE TUBE PANEL TIEDOWN, USING STRAIGHTEDGE
(RIB NO. 1)
A-A

SET TO 2.00-INCH FIXED SPACER
2.00 |0.01 INCH BLOCK PUT IMMEDIATELY
FORWARD OF THE CREASE POINT RIGGING BEAM CREASE (144 INCHES) POINT FIXED TRAILING
EDGE (FTE) UPPER PANEL
3.00-INCH ADJUSTING BLOCK
LANDING GEAR BEAM SEE THE TABLE FOR VERTICAL
THE CLEARANCE TIE ROD
(INCLUDES 2.00-INCH THICKNESS OF THE SPACER BLOCKS)DIAGONAL NOTE: MEASURE THE
TIE ROD
DIMENSION AT A RIGHT ANGLE TO THE STRAIGHT EDGE.
FWD
TORQUE TUBE PANEL TIEDOWN, USING RIGGING BEAM
(RIB NO. 1)
A-A

Fixed Trailing Edge Upper Panel Adjustment Figure 501 (Sheet 2)
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747-400 MAINTENANCE MANUAL
FORWARD EDGE ADJUSTING
OF PANEL

D-D
Fixed Trailing Edge Upper Panel Adjustment
Figure 501 (Sheet 3)

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747-400
MAINTENANCE MANUAL

CCREASE LINE
L
Fixed Trailing Edge Upper Panel Crease Line Location
Figure 502

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