(b)  
Disconnect the cables at the control drum (Detail A).

 (c)  
Put an identification tag on the cables.

 (d)  
Discard the used cotter pin retainers.

 S 034-011
 (5)  
Remove the bolt that holds the top end of the spring cartridge to the piston position link (Detail A).

 S 034-012

 (6)  
Remove the four bolts that hold the quadrant and the bracket assembly to the shock strut.

 S 024-013

 (7)  
Remove the quadrant, link and bracket as a unit.

 S 034-014

 (8)  
Do the steps that follow to disassemble the control drum, link and bracket assembly, if it is necessary:

 (a)  
Remove the nut and washer from the piston position link.

 (b)  
Remove the link and the spacer.

 (c)  
Remove the piston position shaft, washer, and control drum.

 TASK 32-51-06-404-015
 3. Install the Control Drum and Link for the Nose Wheel Steering (Fig. 401)
_____________________________________________________________
 A. Equipment
 (1)  
Rig pins: Kit B20003-XX (AMM/20-10-24/201).

 (a)  
NS6 - P/N B20003-5

 (b)  
NS7 - P/N B20003-15

 32-51-06
 ALL  ú ú 03 Page 403 ú May 28/99
 
A

757
MAINTENANCE MANUAL

 (2)  
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

 C.
Access

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

 D.
Procedure

 S 494-016
 (1)  
Make sure the rig pin NS6 is installed in the interconnect mechanism (AMM 32-51-00/501).

 S 434-017

 (2)  
Assemble the bracket, control drum and link with the shaft, spacer, washers and nut if it is necessary (View A-A). Tighten the nut.

 S 424-018

 (3)  
Put the control drum assembly in its position adjacent to the four holes on the aft side of the shock strut.

 S 424-019

 (4)  
Install and tighten the four bolts (Detail A) to hold the assembly to the shock strut.

 S 494-020

 (5)  
Put the rig pin NS7 through the control drum and the bracket (Detail A).

 S 434-021

 (6)
Connect the steering cables NGPPA and NGPPB to the control drum.

 S 434-022

 (7)  
Install new cotter pin retainers on the cable ends.

 S 434-023

 (8)  
Use the turnbuckles to tighten the cables to the tension shown in Table II (AMM 32-51-00/501).

 S 094-024

 (9)  
Make sure you can move the rig pins NS6 and NS7 easily, then remove them.

 (10)
 Connect the spring cartridge to the link.

 S 434-025
 

 32-51-06
 ALL  ú ú 03 Page 404 ú Sep 28/01
 
A

757
MAINTENANCE MANUAL

 S 824-040
 (11)
 Make sure the free length position is 17.20+/-0.01 inches for -1 and -2 cartridges, or 16.51+/-0.01 inches for -3 cartridges. Measure between the centerlines of the rod ends of the spring cartridge. If it is necessary, use the procedure in (AMM 32-51-08/401) to adjust the free length of the spring cartridge.

 S 434-027

 (12)
 Examine the rod end to make sure it is engaged correctly.

 S 434-028

 (13)
 Tighten the lock nut for the spring cartridge to 175 |25 pound-inches.

 S 434-029

 (14)
 Install the lockwire.

 S 714-030

 (15)
 Do a test of the operation of the rudder pedal disconnect for the nose wheel steering system (AMM 32-51-00/501).

 S 824-031

 (16)
 Make sure the cable tension is not changed and tighten the cables if it is necessary.

 S 434-032

 (17)
 Install the lock clips on the cable turnbuckle.

 S 434-048

 (18)
 Connect the upper to the lower torsion links at the apex joint (AMM 32-21-09/401)

 (19)
 With the steering collar in the center position, remove the towing lever lockpin.

 S 864-036

 (20)
 Make sure the towing lever moves to the NORMAL position.

 S 094-035
 CAUTION:_______ MAKE SURE THE STEERING COLLAR IS ACCURATELY IN THE CENTER
　
中國航空網 m.k6050.com
航空翻譯 www.aviation.cn
本文鏈接地址：757 AMM 飛機維護手冊 起落架 CHAPTER 32 - LANDING GEAR 3(126)