S 585-037
(3)
Lift the nose of the airplane with the jack until the tires will not touch the ground (AMM 07-11-21/201).
NOTE: The shock strut must be fully extended and the centering cams
____
must be engaged.
(a) If it is necessary, use jacking adapter with the jack when you lift the nose of the airplane.
S 725-089
(4) Make sure the rotary actuator for the rudder pedal steering goes to the disengage position in the air mode:
NOTE: This will show that the nose ground sense relay, the nose
____ gear steering relay, and the nose air proximity switch operate correctly.
(a) Look to see that the index marks on the drum and the housing of the rotary actuator are aligned within 5 degrees.
S 495-060
(5)
Set the turning plates that are greased below the tires of the nose landing gear.
(a)
Lower the airplane until the landing gear will hold the weight of the airplane.
S 725-090
(6) Make sure the rotary actuator for the rudder pedal steering goes back to the engage position in the ground mode:
NOTE: This will show that the nose ground sense relay, the nose
____ gear steering relay, and the nose air proximity switch operate correctly.
S 035-039
(7) Remove the apex bolt of the torsion link.
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S 985-040
(8)
Manually turn the steering system of the nose wheel to its left side (counterclockwise) stop.
(a)
Make sure the steering collar will turn 78 +1/-2 degrees from the centerline "0" to the stop.
(b)
Make sure the piston rods of the steering actuator (which is on the nose landing gear ) be clear the ring collar in all turn positions.
(c)
Make sure all the pulleys, the quadrants and the components will operate freely. 1) Make sure there is no sign of binding or galling on the
system.
S 985-041
(9)
Manually turn the steering system of the nose wheel to its right side (clockwise) stop.
(a)
Make sure the steering collar will turn 78 +1/-2 degrees from the centerline "0" to the stop.
(b)
Make sure the piston rods of the steering actuator (which is on the nose landing gear ) be clear the ring collar in all turn positions.
(c)
Make sure all the pulleys, the quadrants and the components will operate freely. 1) Make sure there is no sign of binding or galling on the
system.
S 435-042
(10)
Install the apex bolt of the torsion link.
S 865-043
(11)
Pressurize the hydraulic system A (AMM 29-15-00/201).
S 845-044
(12)
Make sure that the nose landing gear will not move when you
pressurize the hydraulic system A.
F.
Test Nose Wheel Steering System
S 825-045
(1)
Make sure that the steering wheel is in the neutral (centered) position.
(2)
Make sure that the rudder pedals are in the neutral position.
S 715-046
NOTE: When you do steps (1) and (2), use the rigging pin holes
____ for alignment reference only. Do not leave any rigging pins installed.
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S 825-047
(3) Turn the steering wheel (counterclockwise) to the left stop position
and hold.
(a) Make sure that the nose landing gear will move 78 +1/-2 degrees
to the left side.
S 825-048
(4) Release the steering wheel.
(a) Make sure that the steering wheel will go back to its neutral
position.
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本文链接地址：737-300 400 500 AMM 飞机维护手册 起落架 LANDING GEAR 3(122)
