A320飞机维护手册 AMM LANDING GEAR 起落架8(68)

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 **ON A/C 001-049, 051-099, 101-105, 151-199, 201-220, 301-399,
 (Ref. Fig. 002)
 **ON A/C 106-149, 221-299,
 (Ref. Fig. 002A)
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
 The servoing is active with the aircraft on ground upon impact of the main landing gear. The steering angle is limited as a function of the aircraft speed.
 (2) During takeoff or landing, and more generally at high speed
 -either through action of the Captain (or First Officer) on the
 rudder pedals, - or automatically through the autopilot (yaw control). In both cases, the steering angle is limited as a function of the aircraft speed and the origin of the orders. (Ref. Fig. 003, 004) When the aircraft speed is above 130 knots, the steering is not available. (Ref. Fig. 003)
 1EFF : 001-049, 051-099, 101-149, 151-199, 1 32-51-00Page 1 1201-299, 301-399, 1Config-1 Aug 01/05 1 1 1CES 1

 Nose Wheel Steering -Principle
 Figure 001

 1EFF : 001-049, 051-099, 101-149, 151-199, 1 32-51-00Page 2 1201-299, 301-399, 1Config-1 Aug 01/05 1 1 1CES 1

 Wheel Steering Control - Taxi Mode
 Figure 002

 1EFF : 001-049, 051-099, 101-105, 151-199, 1 32-51-00Page 3 1201-220, 301-399, 1Config-1 Aug 01/05 1 1 1CES 1

 Wheel Steering Control - Taxi Mode
 Figure 002A

 1EFF : 106-149, 221-299, 1 32-51-00Page 4 1 1 Config-1 Aug 01/05 1 1 1CES 1

 Wheel Steering Control - Takeoff/Landing Mode
 Figure 003

 1EFF : 001-049, 051-099, 101-149, 151-199, 1 32-51-00Page 5 1201-299, 301-399, 1Config-1 Aug 01/05 1 1 1CES 1

 Steering System - Nose Gear Centered Index
 Figure 004

 1EFF : 001-049, 051-099, 101-149, 151-199, 1 32-51-00Page 6 1201-299, 301-399, 1Config-1 Aug 01/05 1 1 1CES 1

 If the runway is icy, the pilot can disconnect the control through
 the pedals from the steering control.
 To obtain this, the pilot presses and holds a pushbutton switch
 located on each handwheel.

 (3)
 After takeoff, the nose wheels are automatically centered under the action of cams in the shock absorber.

 (4)
 Before the aircraft is towed, the hydraulic system must be depressurized through action on a lever which can be locked in its two positions. This lever is located on an electrical box easily accessible from the ground. (Ref. Fig. 005) The maximum towing angle is plus or minus 95 deg.

 1EFF : 001-049, 051-099, 101-149, 151-199, 1 32-51-00Page 7 1201-299, 301-399, 1Config-1 Aug 01/05 1 1 1CES 1

 Electrical Box
 Figure 005

 1EFF : 001-049, 051-099, 101-149, 151-199, 1 32-51-00Page 8 1201-299, 301-399, 1Config-1 Aug 01/05 1 1 1CES 1

 2. Component Location
__________________
 A. General
 (Ref. Fig. 006)

 **ON A/C 001-004, 051-054,
 (Ref. Fig. 007)
 **ON A/C 005-049, 055-099, 101-149, 151-199, 201-299, 301-399,
 (Ref. Fig. 007A)
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
 -------------------------------------------------------------------------------FIN | FUNCTIONAL DESIGNATION | PANEL|ZONE|ACCESS | ATA | | | | DOOR | REF.
 -------------------------------------------------------------------------------1GC XMTR UNIT-N/W STRG HANDWHEEL,CAPT 19VU 211 831 32-51-11 2GC XMTR UNIT-N/W STRG HANDWHEEL,F/O 18VU 212 831 32-51-11 3GC SENSOR-N/W STRG FDBK,CTL CHAN 711 32-51-19 4GC SENSOR-N/W STRG FDBK,MONITORING CHAN 711 32-51-19 5GC ELEC BOX-N/W STEERING,DEACTIVATION 711 32-51-12 6GC SERVO CTL-N/W STEERING 711 32-51-51
 (1)
 The control is electrohydraulic with position feedback of the nose wheel assembly.

 (2)
 A monitoring channel permits:

 -detection of failures,
 -de-activation of the control in the event of a failure which may cause wheel runaway.
 **ON A/C 001-004, 051-054,
 B. Control Components
 (1) A Captain handwheel which actuates a transmitter unit with 4 potentiometers. In addition, it includes a pushbutton switch for the disconnection of the steering control through the rudder pedals. (Ref. Fig. 006)
 1EFF : 001-049, 051-099, 101-149, 151-199, 1 32-51-00Page 9 1201-299, 301-399, 1Config-1 Aug 01/05 1 1 1CES 1

 Steering System Handwheel - Component Location
 Figure 006

 1EFF : 001-049, 051-099, 101-149, 151-199, 1 32-51-00Page 10 1201-299, 301-399, 1Config-1 Aug 01/05 1 1 1CES 1

 Steering Control - Component Location
 Figure 007

 1EFF : 001-004, 051-054, 1 32-51-00Page 11 1 1 Config-1 Aug 01/05 1 1 1CES 1

　
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