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时间:2011-10-30 09:57来源:蓝天飞行翻译 作者:航空
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 2.  Remove the Bracket for the Top Pulley of the Nose Wheel Steering (Fig. 401)________________________________________________________________
 A.  Equipment
 (1)  
Towing Lever Lockpin - A09003-1

 B.  
References

 (1)  
AMM 32-00-05/201, Landing Gear Control Cables

 (2)  
AMM 32-00-20/201, Landing Gear Downlocks

 C.  
Access

 (1)  
Location Zones 115 NLG Wheel Well (Left) 116 NLG Wheel Well (Right) 117 Area Outboard and Above NLG Wheel Well (Left) 118 Area Outboard and Above NLG Wheel Well (Right) 711 Nose Landing Gear (NLG)

 D.  
Prepare for the Removal


 S 494-002
 (1)  
Make sure the downlocks are installed on the nose and main landing gear (AMM 32-00-20/201).

 S 864-003

 (2)  
Put the towing lever in the TOW POSITION.

 S 494-004

 (3)  
Install the towing lever lockpin.

 E.  
Remove the Bracket


 S 034-005
 (1)  
Disconnect the four cables for the nose wheel steering at the splice in the fuselage (AMM 32-00-05/201).

 (2)  
Move the cables away from the top bracket assembly.

 S 024-007

 (3)  
Remove the four fasteners and remove the top bracket assembly from the shock strut for the nose landing gear.


 S 014-006
 

 32-51-14
 ALL  ú ú 01 Page 401 ú Jan 20/98
 
A
757
MAINTENANCE MANUAL

TOP
DRAG STRUT
(REF)

LOWER DRAG STRUT (REF)
SEE A
STEERING METERING P62/P63VALVE LIGHT PANEL(REF) ASSEMBLY
TOP PULLEY
BRACKET

SEE B
TO LEFT TRUNNION SEAL
TOP PULLEY  BOLT
BRACKET  WASHER NUT (2 LOCATIONS)
STEERING CONTROL
LOWER PULLEY CABLES (REF)
BRACKET
(REF)

DRUM AND LINK (REF)
SPRING
BOLT CARTRIDGE
WASHER
TO METERING  (REF)
NUT
VALVE MODULE (2 LOCATIONS)
PULLEYS (REF)
(VIEW WITH P62/P63 LIGHT PANEL REMOVED) (8 LOCATIONS)

A B
Nose Wheel Steering Upper Pulley Bracket Installation
Figure 401

 

 32-51-14
 ALL  ú ú 01 Page 402 ú May 28/99
 
A
757 MAINTENANCE MANUAL
 TASK 32-51-14-404-008
 3.  Install the Bracket for the Top Pulley of the Nose Wheel Steering (Fig. 401)_________________________________________________________________
 A. Equipment
 (1)  
Towing Lever Lockpin - A09003-1

 B.
Consumable Materials

 (1)  
A00247 Sealant, BMS 5-95, Type 1, Class B-1/2

 C.
References

 (1)  
AMM 32-00-05/201, Landing Gear Control Cables

 (2)  
AMM 32-51-00/501, Nose Landing Gear Steering System Adjustment/Test

 D.
Access

 (1)  
Location Zones 115 NLG Wheel Well (Left) 116 NLG Wheel Well (Right) 117 Area Outboard and Above NLG Wheel Well (Left) 118 Area Outboard and Above NLG Wheel Well (Right) 711 Nose Landing Gear (NLG)

 E.
Install the Bracket


 S 424-009
 (1)
Put the top pulley bracket at the top end of the shock strut.

 S 394-010

 (2)  
Fay seal the bracket.

 S 434-011

 (3)  
Use the four fasteners to install the bracket. Use wet sealant with the fasteners.

 S 434-012

 (4)  
Put the cables for the nose wheel steering into the applicable pulleys. Loosely connect them at the splice in the fuselage (AMM 32-00-05/201).

 (5)
Tighten the cables to get the correct tension (AMM 32-51-00/501).

 S 714-014

 (6)  
Do a test of the system for nose wheel steering to make sure it operates correctly (AMM 32-51-00/501).

 F.
Put the Airplane Back to Its Usual Condition


 S 434-013
 S 434-015
 (1)  
Make sure the torsion links for the nose wheel steering are connected.

 (2)  
Remove the towing lever lockpin.


 S 094-016
 

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A

757 MAINTENANCE MANUAL
 S 864-017
 (3) Make sure the towing lever goes back to the NORMAL POSITION.
 

 32-51-14
 ALL  ú ú 01 Page 404 ú Dec 20/90
 
 
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