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____ when the shock strut is fully extended. The centering cams in the shock strut will do this automatically. It is possible that it will be necessary to manually put the nose wheels in the center. If the wheels are not in the detent for the center, you can feel when the wheels are manually turned and go into the detent.
 S 585-021
 (3)  Lift the airplane nose on jacks (AMM 07-11-02/201).
 S 035-178
 CAUTION: ON AIRPLANES WITH THE 275N2059-2 SPRING CARTRIDGE, MAKE SURE
_______ YOU HOLD THE TOP TORSION LINK IN THE HORIZONTAL POSITION. IF THE TORSION LINK IS NOT HELD IN THE HORIZONTAL POSITION, IT CAN CAUSE DAMAGE TO THE PROXIMITY SENSORS OR TARGETS FOR THE NOSE LANDING GEAR NOT COMPRESSED.
 (4)  If they are not disconnected, disconnect the torsion links (42 and 44, Fig. 502) (AMM 32-21-09/401).
 NOTE: When the landing gear is extended with the torsion links
____
 connected, you cannot install the rig pin NS7.

 S 035-153
 (5)  
If there was no movement of the nose gear when the NGPP system was cycled between air mode and ground mode (hydraulic power on) during the rigging check, then go to step (6). If there was movement of the nose gear when the NGPP system was cycled, then do the two steps that follow:

 (a)  
Disconnect the input rod for the rudder pedal steering (20, Detail B, Fig. 501) from the steering crank (22).

 

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 (b)  Disconnect the eccentric rod (30) from the clevis bracket (30B).
 S 495-154
 (6)  
Install the rig pins NS6 (24, View C-C, Fig. 501) and NS7 (40, Detail A, Fig. 502).

 (a)  
If the rig pin NS6 is not installed and you loosen the cables, the eccentric drum (25) will turn because of the movement of the clutch arm (27) that is spring-loaded. If you have this condition, pull the clutch arm (27) clear of the eccentric drum (25). Put the drum (25) in its the correct position for rig pin installation. Then install the rig pin NS6.

 S 825-026
 (7)  
If new cables NGPPA (2) and NGPPB (5) were not installed and the tension in the cables was at least half the tension shown in Table 501, then go to step (8). If new cables NGPPA (2) and NGPPB (5) were installed or the tension in the cables was less than half the tension shown in Table 501, do the four steps that follow to pull the cables:

 (a)  
Tighten the new cables to 80 |10 pounds of tension (at 70°F), but do not lock the turnbuckles.

 (b)  
Remove the rig pins NS6 and NS7.

 (c)  
Operate the piston position system through 25 full cycles. With the top torsion link (44) disconnected, manually lift and lower it, to do this.

 (d)  
Install the rig pins NS6 and NS7 again.

 S 825-027
 (8)  
Adjust the cable NGPPA (2) and NGPPB (5) to the correct tension (Table 501).

 S 495-028

 (9)  
Make sure the rig pin NS7 (40, Detail A, Fig. 502) has a free fit when the spring cartridge (45) is at the free length with no weight on the spring cartridge piston (the rig pin NS6 can be tight because of a load on the interconnect springs).

 NOTE: It can be necessary to turn the eccentric hub of the
____ interconnect mechanism to the air mode (against the resistance of the interconnect springs) to install rig pin NS6.
 

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 S 825-029
 (10)
 Make sure the free length position is 17.20|0.01 inches for the 275N2059-1 and -2 spring cartridges and 16.51|0.01 inches for the 275N2059-3 spring cartridge. Measure between the centerlines of the rod ends of the spring cartridge (45). If it is necessary, adjust the free length of the spring cartridge (AMM 32-51-08/401).

 S 825-155

 (11)
 If you did not disconnect the input rod for the rudder pedal steering (20) and the eccentric rod (30) then go to step (12). If you disconnected the input rod and the eccentric rod, do the steps that follow:

 (a)  
Adjust the rod end of the eccentric rod (30) until you can put the attach bolt (30A) freely through the rod end and the clevis bracket (30B).

 (b)  
Tighten the adjustment nut for the rod end and install the bolt (30A).

 S 095-032
 (12)
 Remove the rig pins NS6 and NS7.

 S 435-033

 (13)
 Install the turnbuckle lock clips for the cables NGPPA (2) and NGPPB (5).

　
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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(106)