747-400 AMM 飞机维护手册 EXHAUST 2(11)

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 NOTE: Do the deactivation procedure for the isolation valve only.
____ DO NOT put the streamered pins in the thrust reverser sleeves. You will need to manually extend the thrust reverser sleeves to get access to the blocker doors in the steps that follow.
 S 984-075-N00
 WARNING: MAKE SURE ALL PERSONS AND EQUIPMENT ARE OUT OF THE FAN COWL AND
_______ AWAY FROM THE THRUST REVERSER. IF YOU DO NOT DO THIS, INJURIES TO PERSONS AND DAMAGE TO EQUIPMENT CAN OCCUR WHEN YOU EXTEND THE THRUST REVERSER.
 (5)  
Manually extend the thrust reverser to lift the blocker doors into the deployed position (AMM 78-31-00/201).

 D.
Remove the Blocker Doors (Fig. 401).

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
SEE A
8. SLEEVE HINGE FITTING
5. BLOCKER DOOR (12 LOCATIONS)
AA AA
9. DRAG LINK (REF)
8. SLEEVE HINGE 9. DRAG LINK
FITTING (REF)
BB
B
B
5. BLOCKER DOOR (12 LOCATIONS)
METAL BLOCKER DOOR IN THE OPEN POSITION COMPOSITE BLOCKER DOOR IN THE OPEN POSITION (VIEW IN THE FORWARD DIRECTION) (VIEW IN THE FORWARD DIRECTION)
A A
3. BUSHING 2. WASHER 2 3. BUSHING
2. WASHER (3 LOCATIONS)
2. WASHER 6. BRACKET 2. WASHER
1. BOLT 1
1. BOLT 1
7. NUT
4. NUT
4.
 NUT 5. BLOCKER
DOOR

5.
 BLOCKER

DOOR
(HINGE)

(HINGE)
CLAMPED HINGE FLOATING HINGE
A-A B-B

1
THE BOLT HEAD DIRECTION IS OPTIONAL
2
AIRPLANES WITHOUT AN ANTI ROTATION BRACKET
Thrust Reverser Blocker Door Installation
Figure 401

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
S 014-079-N00

 WARNING:_______ DO NOT OPEN THE THRUST REVERSER HALVES TO REMOVE THE BLOCKER
 DOORS.  IF YOU DO, YOUR WEIGHT CAN CAUSE THE FAILURE OF THE
 HOLD-OPEN ROD WHEN YOU GO INTO THE FAN COWL.  THE THRUST
 REVERSER HALVES WILL FALL TO THE CLOSED POSITION QUICKLY, WHICH

 CAN CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
 (1)  Go into the fan cowl to get access to the aft side of the blocker doors.
 NOTE: Be careful when you get access to the blocker doors at the
____ top of the thrust reverser. Push on the opposite sides of the inner walls of the fan cowl with your hands and feet while you lift your body up. Do not pull on the drag links or you will cause damage to them.
 S 024-038-N00
 WARNING: HOLD THE BLOCKER DOOR WHEN YOU DISCONNECT IT FROM THE DRAG
_______ LINK. THE BLOCKER DOOR IS FREE TO TURN ON ITS HINGES AND CAUSE INJURY TO YOU AND DAMAGE TO THE FAN COWL.
 (2)  Disconnect the drag link (9) from the blocker door (5) (AMM 78-31-15/401).
 (a)  Wind a clean shop rag around the drag link (9) and attach it to the inner wall of the fan cowl with tape.
 S 024-077-N00
 (3)  
Remove the bolts (1), washers (2), bushings (3), and nuts (4) from the blocker door hinges.

 S 024-039-N00

 (4)  
Remove the blocker door (5) from the fan cowl of the thrust reverser.

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
TASK 78-31-14-404-041-N00
 3. Install the Thrust Reverser Blocker Doors
_________________________________________
 A. Parts
 ~.............................................................................. | AMM | | AIPC | ................... .......................... | FIG | ITEM | NOMENCLATURE | SUBJECT | FIG | ITEM | ................................................................................ | 401 | 1 | Bolt | 78-31-14| 01 | 10 | | | 2 | Washer | | | 15 | | | 3 | Bushing | | | 25 | | | 4 | Nut | | | 20 | | | 5 | Door Assy, Blocker | | | 30, 35 | | | | | | | 40, 45 | | | | | | | 50, 55 | | | 6 | Bracket | | | | | | 7 | Nut | | | | | | 8 | Sleeve Hinge Fitting | | | | | | 9 | Drag Link | | | 35 | 2......…..........…...................................….........….....…........1
　
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