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 BEFORE YOU REMOVE THE TOWING LEVER LOCKPIN.  THE TOP TORSION
 LINK AND STEERING COLLAR WILL TURN QUICKLY TO THE CENTER WHEN
 YOU REMOVE THE TOWING LEVER LOCKPIN, IF THE STEERING COLLAR WAS
 NOT PUT IN THE CENTER CORRECTLY.  INJURY TO PERSONS OR DAMAGE
 TO EQUIPMENT CAN RESULT.

 

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1.

2.

ú
ú ú
757 MAINTENANCE MANUAL
 NOSE WHEEL STEERING SPRING CARTRIDGE - REMOVAL/INSTALLATION
___________________________________________________________
General
_______
 A.  This procedure contains two tasks. The first task is for the removal of the spring cartridge for the nose wheel steering. The second task installs the spring cartridge.
 TASK 32-51-08-004-001
Remove the Spring Cartridge for the Nose Wheel Steering (Fig. 401)

_______________________________________________________

 A.  Equipment
 (1)  
Towing Lever Lockpin - A09003-1

(2)  
Rig Pin NS7 - P/N B20003-15, part of kit B20003-70
 (AMM 20-10-24/201).

(3)  
Rig Pin NS7 - P/N B20003-15, part of kit B20003-XX
(AMM 20-10-24/201).

 B.  
References

 (1)  
AMM 32-00-20/201, Landing Gear Downlocks

 (2)  
AMM 32-21-09/401, Nose Gear Torsion Links

 C.  
Access

 (1)  
Location Zone
 711 Nose Landing Gear (NLG)

 D.  
Procedure

 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)  
Make sure the steering collar is in the center.

 S 864-004

 (3)  
Put the towing lever in the TOWING position.

 S 494-005

 (4)  
Install the towing lever lockpin.

 S 034-031
 CAUTION: DO NOT LET THE TORSION LINKS FALL FREELY WHEN YOU DISCONNECT
_______ THE TORSION LINKS. DAMAGE TO THE TORSION LINKS OR THE PROXIMITY SENSORS AND TARGETS CAN OCCUR.
 (5)  Disconnect the nose gear torsion links at the apex joint
 (AMM 32-21-09/401).

 

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757
MAINTENANCE MANUAL

SEE  A  QUADRANT CONTROL  LINK  RIG PIN NS7 CONTROL DRUM 
BOLT 
TOP ROD END LOCKNUT 
HOLE INSPECTION CARTRIDGE SPRING  DIMENSION A 
1 TOP LINK TORSION  BOLT 

A

1 LOWER TORSION LINK DISCONNECTED
Nose Wheel Steering Spring Cartridge Installation Figure 401
C58766
 

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A
757 MAINTENANCE MANUAL
 S 864-009
 (6)  
Put the steering collar for the nose wheel in the center, not more than 1/4 degree off of the center.

 S 984-010

 (7)  
Put the upper torsion link in the position for landing gear extended.

 S 494-011

 (8)  
Install the rig pin NS7.

 S 034-012

 (9)  
Remove the bolt to disconnect the spring cartridge from the top torsion link.

 S 034-013

 (10)
 Remove the bolt which connects the spring cartridge to the control drum link.

 S 024-014

 (11)
 Remove the cartridge.

 TASK 32-51-08-404-015
 3. Install the Spring Cartridge for the Nose Wheel Steering (Fig. 401)
________________________________________________________
 A. Equipment ú (1) Rig Pin NS7 - P/N B20003-15, part of kit B20003-70 ú (AMM 20-10-24/201). ú (2) Rig Pin NS7 - P/N B20003-15, part of kit B20003-XX ú (AMM 20-10-24/201).
 (3)  
Towing Lever Lockpin - A09003-1

 B.
References

 (1)  
AMM 32-21-09/401, Nose Gear Torsion Links

 (2)  
AMM 32-51-00/501, Nose Wheel Steering System Test

 C.
Access

 (1)  
Location Zone
 711 Nose Landing Gear (NLG)

 D.
Procedure

 S 824-016
 (1)  
If you will install a 275N2059-1 or -2 spring cartridge then adjust the top rod end of the spring cartridge to get 17.20 +/-0.01 inches for Dimension A shown in Fig. 401. If you will install a 275N2059-3 spring cartridge adjust the top rod end to get 16.51 +/-0.01 inches for Dimension A. Do not move the spring cartridge when you do the adjustment.
　
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本文鏈接地址：757 AMM 飛機維護手冊 起落架 CHAPTER 32 - LANDING GEAR 3(127)