747-400 AMM 飞机维护手册 EXHAUST 2(34)

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 S 044-005-N00
 WARNING: DO THE DEACTIVATION PROCEDURE FOR TO PREVENT THE OPERATION OF
_______ THE LEADING EDGE FLAPS. THE ACCIDENTAL OPERATION OF THE LEADING EDGE FLAPS CAN CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
 (4)  
Do the deactivation procedure for the drive circuit of the leading edge flaps (AMM 27-81-00/201).

 (5)  
Open the fan cowl panels (AMM 71-11-04/201).

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S 864-007-N00
 (6)  
Manually extend the thrust reverser (AMM 78-31-00/201).

 S 214-125-N00

 (7)  
Examine the bullnose seal (AMM 78-00-00/601).

 NOTE: The condition of the bullnose seal can cause difficulty when
____ you check the rod end gap during actuator installation.
 (a)  Repair the bullnose seal, if necessary (AMM 78-00-00/801).
 S 864-126-N00
 (8)  
Move the thrust reverser forward until you are one inch from the
 complete stow position.

 S 864-008-N00

 (9)  
Remove the streamered pin which holds the manual override lever for
 the bypass valve of the isolation valve in the open position.

 

 NOTE: Keep the bypass valve in the closed position during the
____ removal and installation of the hydraulic component. If the bypass valve is open, the hydraulic reservoir will drain.
 D.  Remove the Locking Hydraulic Actuator for the Thrust Reverser (Fig. 401 and 402).
 S 014-009-N00
 (1)  
Remove the screws (8) from the applicable access panel (10).

 S 014-084-N00

 (2)  
Remove the access panel (10).

 S 034-010-N00

 (3)  
Remove the cotter pin (9), nut (7), washers (6) and bolt (5) which
 attach the rod end (4) to the thrust reverser sleeve (11).

 S 034-011-N00

 (4)  
Disconnect the electrical connectors (3) for the feedback LVDT
 (Fig. 402).

 

 (a)  Install the protection caps.
 S 034-012-N00
 (5)  
Remove the actuator lock proximity sensor (10) and the actuator
 deploy proximity sensor (18) from the locking hydraulic
 actuator (11) (Fig. 402) (AMM 78-36-01/401).

 S 034-013-N00

 (6)  
Remove the bolts (15), washers (16), and nuts (17) which attach the
 clamps (14) for the proximity sensor wire to the locking hydraulic
 actuator (Fig. 402).

 

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////////////////////////A / PW4000 SERIES /747-400 / ENGINES /MAINTENANCE MANUAL ////////////////////////
SEE  C  1 
UPPER NON-LOCKING HYDRAULIC ACTUATOR 
SEE  A
LOCKING HYDRAULIC ACTUATOR 
HYDRAULIC ACTUATOR LOWER NON-LOCKING  SEE  B  2 
1. BOLT  A 
2. RETAINER 
3. SHIM  MOUNTING BRACKET 
4. ACTUATOR  GIMBEL RING FOR THE ACTUATOR 
MOUNTING BRACKET  3. SHIM 2. RETAINER 
1. BOLT 
1 2  Hydraulic Actuator Installation Figure 401 (Sheet 1) B 2ACCESS PANEL FOR LOWER NON-LOCKING ACTUATOR NOT SHOWN SIMILAR FOR ALL ACTUATORS 

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D

Hydraulic Actuator Installation
Figure 401 (Sheet 2)

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