Level II - Ata 32 Landing Gears

A380 TECHNICAL TRAINING MANUAL MAINTENANCE COURSE - T1 & T2 (RR / Metric) LEVEL II - ATA 32 Landing Gears

This document must be used for training purposes only

Under no circumstances should this document be used as a reference

It will not be updated.

All rights reserved No part of this manual may be reproduced in any form, by photostat, microfilm, retrieval system, or any other means, without the prior written permission of AIRBUS S.A.S.

A380 TECHNICAL TRAINING MANUAL

LEVEL II - ATA 32 LANDING GEARS Landing Gears Assemblies Landing Gear Assemblies Description (2) . . . . . . . . . . . . . . . . . . . . . . 2 Wheel-Well Lighting & Power Outlets Desc. (2) . . . . . . . . . . . . . . . . 12 Landing Gear Assemblies OPS, CTL & IND (2) . . . . . . . . . . . . . . . . 16

Extension/Retraction L/G Extension & Retraction System Description (2) . . . . . . . . . . . . . 18 L/G Extension & Retraction SYS OPS, CTL & IND (2) . . . . . . . . . . 26

Wheels & Braking Wheels & Braking System Description (2) . . . . . . . . . . . . . . . . . . . . 36 Wheels & Braking System OPS, CTL & IND (2) . . . . . . . . . . . . . . . 50

Steering System

L1W06161 - L0KT0T0

Steering System Description (2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62 Steering System Operation, Control & IND (2) . . . . . . . . . . . . . . . . . 68 Component Location (2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

MAINTENANCE COURSE - T1 & T2 (RR / Metric) LEVEL II - ATA 32 Landing Gears

TABLE OF CONTENTS

Apr 21, 2006 Page 1


LANDING GEAR ASSEMBLIES DESCRIPTION (2) Gear Assemblies Wheel Numbering

L1W06161 - L0KT0T0 - LM32DVLEVEL0201

Landing Gear (L/G) wheels are numbered from the left to the right and from the front wheels to the rear wheels. Wheel numbers are also shown on the ECAM page, except for the Nose Landing Gear (NLG).


LANDING GEAR ASSEMBLIES DESCRIPTION (2)

Apr 18, 2006 Page 2



GEAR ASSEMBLIES - WHEEL NUMBERING MAINTENANCE COURSE - T1 & T2 (RR / Metric) LEVEL II - ATA 32 Landing Gears


Apr 18, 2006 Page 3


LANDING GEAR ASSEMBLIES DESCRIPTION (2) Gear Assemblies (continued) NLG Assembly


The main items of the NLG are: - the upper and lower drag stay, - the unlock actuator, - the lock links, - and the downlock springs. The NLG downlock springs operate at a L/G free fall extension. On ground, safety pin is installed on the NLG to avoid inadvertent retraction.



Apr 18, 2006 Page 4



GEAR ASSEMBLIES - NLG ASSEMBLY MAINTENANCE COURSE - T1 & T2 (RR / Metric) LEVEL II - ATA 32 Landing Gears


Apr 18, 2006 Page 5


LANDING GEAR ASSEMBLIES DESCRIPTION (2) Gear Assemblies (continued) BLG Assembly


The main items of the BLG are: - the upper and lower drag brace, - the lock links, - and the downlock springs. The Body Landing Gear (BLG) downlock springs operate at a L/G free fall extension. On ground, one safety pin is installed on each BLG to avoid inadvertent retraction.



Apr 18, 2006 Page 6



GEAR ASSEMBLIES - BLG ASSEMBLY MAINTENANCE COURSE - T1 & T2 (RR / Metric) LEVEL II - ATA 32 Landing Gears


Apr 18, 2006 Page 7


LANDING GEAR ASSEMBLIES DESCRIPTION (2) Gear Assemblies (continued) WLG Assembly


The main items of the Wing Landing Gear (WLG) are: - the side stay assembly, - the lock links, - and three downlock springs. The WLG downlock springs operate at a L/G free fall extension. On ground, one safety pin is installed on each WLG to avoid inadvertent retraction. Safety pins for all L/G are stored in the dedicated stowage box located in the cockpit.



Apr 18, 2006 Page 8



GEAR ASSEMBLIES - WLG ASSEMBLY MAINTENANCE COURSE - T1 & T2 (RR / Metric) LEVEL II - ATA 32 Landing Gears


Apr 18, 2006 Page 9


LANDING GEAR ASSEMBLIES DESCRIPTION (2) Oleo-Pressure Monitoring System


The Oleo-Pressure Monitoring System application is hosted in the CPIOM. It monitors data from oleo-pressure and temperature sensors and sends them via L/G Remote Data Concentrator (L/G RDC) to: - the Onboard Maintenance System (OMS), - the Flight Warning System (FWS), - and the Cockpit and Display System (CDS). The Oleo-Pressure Monitoring System is supplied by 28 VDC from DC BUS 1, DC BUS 2 or DC ESSential BUS. An oleo pressure gage and an oleo reference chart are installed on each L/G. The gage shows the actual oleo pressure of the related L/G, while the oleo reference chart gives the shock absorber extension (H dimension) versus temperature and oleo pressure. On ground, correct L/G oleo pressure must be checked with respect to reference chart.



Apr 18, 2006 Page 10



OLEO-PRESSURE MONITORING SYSTEM MAINTENANCE COURSE - T1 & T2 (RR / Metric) LEVEL II - ATA 32 Landing Gears


Apr 18, 2006 Page 11


WHEEL-WELL LIGHTING & POWER OUTLETS DESC. (2) Landing Gear Bays Lighting

Belly Fairing Lighting

The landing gear bays have several lights installed to make personal orientation and performance of maintenance tasks easier.

The belly fairing lighting is carried out by the means of eight LED type lights installed in the different equipment bays to help performance of maintenance tasks in these areas. The different equipment bays are the following ones: - the slat Power Control Unit (PCU) area, - FWD air conditioning compartment, - AFT air conditioning compartment, - the fuel equipment bay, - the hydraulic equipment bay, - the flap PCU area and, - the RH and LH BLG alternate braking equipment. The belly fairing lights are controlled from a single toggle switch installed on the GDO panel of the RH WLG panel. The belly fairing lights are supplied with 115 VAC from the AC GSB. The belly fairing has four power outlets: - one 28 VDC and one 115 VAC in WLG GDO panel, - one 28 VDC and one 115 VAC in slat PCU area. They get their power supply from the DC GSB and the NORM AC BUS. Human factor point:

Nose Landing Gear Five Lights Emitting Diode (LED) type light the Nose Landing Gear (NLG) bay and one High Intensity Discharge (HID) light, lights the NLG wheel. The NLG bay lights are supplied with 115 VAC. The NLG bay lights are controlled by the NLG BAY LIGHTING toggle switch and the NLG wheel light is controlled by the NLG WHEEL LIGHTING toggle SW. Both switches are installed on the NLG steering disconnect panel. The NLG bay also has: - one 28 VDC power outlet powered from DC Ground Service Bus (GSB), - one 115 VAC power outlet powered from the AC GSB BUS 2.

L1W06161 - L0KT0T0 - LM32DQLEVEL0201

Main Landing Gear The Main Landing Gear (MLG) bay is lighted by the means of six LED type lights. Four lights in the Wing Landing Gear (WLG) bays and two in the Body Landing Gear (BLG) bays. The MLG bay lights are supplied with 115 VAC. The MLG lights are controlled from three-separated toggle SWs installed on the Ground Door Opening (GDO) panel of the RH WLG depending on the area to light: - one switch controls the RH MLG bay lighting, - one switch controls LH MLG bay lighting and, - one switch controls MLG wheels lighting by the taxi aid camera lights.


WARNING: BE CAREFUL WITH MOVING COMPONENTS, DOORS AND SURFACES; MOVEMENT OF COMPONENTS CAN KILL OR CAUSE INJURY TO PERSONS.

WHEEL-WELL LIGHTING & POWER OUTLETS DESC. (2)

Apr 18, 2006 Page 12



LANDING GEAR BAYS LIGHTING & BELLY FAIRING LIGHTING MAINTENANCE COURSE - T1 & T2 (RR / Metric) LEVEL II - ATA 32 Landing Gears


Apr 18, 2006 Page 13



LANDING GEAR BAYS LIGHTING & BELLY FAIRING LIGHTING MAINTENANCE COURSE - T1 & T2 (RR / Metric) LEVEL II - ATA 32 Landing Gears


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This Page Intentionally Left Blank



Apr 18, 2006 Page 15


LANDING GEAR ASSEMBLIES OPS, CTL & IND (2)

L1W06161 - L0KT0T0 - LM32OVLEVEL0201

General



Apr 18, 2006 Page 16

L1W06161 - L0KT0T0 - LM32OVLEVEL0201


GENERAL MAINTENANCE COURSE - T1 & T2 (RR / Metric) LEVEL II - ATA 32 Landing Gears


Apr 18, 2006 Page 17


L/G EXTENSION & RETRACTION SYSTEM DESCRIPTION (2) Ground Door Opening System Architecture

L1W06161 - L0KT0T0 - LM32DULEVEL0201

Ground Door Opening (GDO) is electrically controlled from GDO levers. On Body Landing Gear (BLG), when a GDO lever is operated, the door bypass valve operates to release hydraulic pressure from door actuators. Outer door uplocks are electrically released via electrical motors operation. Inner doors will be manually opened after removal of auxiliary doors. The GDO system is supplied by: - 28 VDC from DC ESSential BUS, - or 24 VDC from external batteries. The GDO panel has: - a GDO lever with two release P/BSWs, - and a connection for external electrical power, A safety pin is installed on each GDO lever to avoid any inadvertent operation. On ground, GDO levers are also used to close Landing Gears (L/G) doors. This operation requires electrical power and hydraulic pressure.


L/G EXTENSION & RETRACTION SYSTEM DESCRIPTION (2)

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GROUND DOOR OPENING - SYSTEM ARCHITECTURE MAINTENANCE COURSE - T1 & T2 (RR / Metric) LEVEL II - ATA 32 Landing Gears


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GROUND DOOR OPENING - SYSTEM ARCHITECTURE MAINTENANCE COURSE - T1 & T2 (RR / Metric) LEVEL II - ATA 32 Landing Gears


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L/G EXTENSION & RETRACTION SYSTEM DESCRIPTION (2) Ground Door Opening (continued) L/G Doors Safety Devices


On ground, safety collars must be installed on each L/G door to avoid door movement during maintenance operations. Each safety collar has a safety pin.



Apr 18, 2006 Page 22



GROUND DOOR OPENING - L/G DOORS SAFETY DEVICES MAINTENANCE COURSE - T1 & T2 (RR / Metric) LEVEL II - ATA 32 Landing Gears


Apr 18, 2006 Page 23




Free Fall System The free fall system is controlled by two L/G GRaViTY switches located on the main instrument panel. These switches are connected together with a link. The emergency operating sequence is controlled by a Free Fall Control Module (FFCM). During a free fall sequence, the cut out valves isolate L/G hydraulic circuits from pressure and the vent valves operate to avoid hydraulic locks. FFCM also releases the gear and door uplocks by operating emergency unlock actuators via electrical motors. Gears and doors open by gravity. All BLG doors remain open after a free fall extension. On ground, system reconfiguration requires: - confirmation of GDO by setting the GDO levers in the open position, - safety devices installation on all gears and doors, - removal of auxiliary doors on BLG center and inner doors, - manual folding of the center door, - reset of the L/G GRVTY switches, - removal of L/G doors safety devices, - hydraulic system pressure, - ground doors closing, - and auxiliary doors installation.



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FREE FALL SYSTEM MAINTENANCE COURSE - T1 & T2 (RR / Metric) LEVEL II - ATA 32 Landing Gears


Apr 18, 2006 Page 25


L/G EXTENSION & RETRACTION SYS OPS, CTL & IND (2)

L1W06161 - L0KT0T0 - LM32OULEVEL0201

General



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Controls Presentation



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CONTROLS PRESENTATION MAINTENANCE COURSE - T1 & T2 (RR / Metric) LEVEL II - ATA 32 Landing Gears


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Extension/Retraction



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EXTENSION/RETRACTION MAINTENANCE COURSE - T1 & T2 (RR / Metric) LEVEL II - ATA 32 Landing Gears


Apr 18, 2006 Page 31


L/G EXTENSION & RETRACTION SYS OPS, CTL & IND (2) Ground Door Opening WARNING: WLG safety collar installation. BLG outer door safety collar weight. CAUTION: Auxiliary door must be removed before inner door opening: Prevent interferences


WARNING: Clear area prior to doors movement.



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GROUND DOOR OPENING MAINTENANCE COURSE - T1 & T2 (RR / Metric) LEVEL II - ATA 32 Landing Gears


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L/G EXTENSION & RETRACTION SYS OPS, CTL & IND (2) Free Fall System WARNING: First Action after free-fall: GDO handles to OPEN.


CAUTION: Auxiliary doors must be removed to prevent interference with BLG Middle Wheels



Apr 18, 2006 Page 34



FREE FALL SYSTEM MAINTENANCE COURSE - T1 & T2 (RR / Metric) LEVEL II - ATA 32 Landing Gears


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WHEELS & BRAKING SYSTEM DESCRIPTION (2) System Architecture

L1W06161 - L0KT0T0 - LM32DTLEVEL0201

WLG Braking System The Wing Landing Gear (WLG) braking system has three operation modes: - normal, - alternate, - and emergency braking. In normal mode, the WLG brake system is powered by the green hydraulic system. Brake pressure is controlled by the brake control system according to pedals, autobrake or in-flight braking orders. Brake control system function is hosted in the CPIOM. The alternate brake system is powered by a Local Electro-Hydraulic Generation System (LEHGS) and a brake accumulator. Although brake pressure is controlled by the brake control system, only pedals braking and autobrake are available in this mode. In case of an emergency braking, the Emergency Brake Control Unit (EBCU) controls the brake pressure which is applied from pedals orders only. Hydraulic supply is from LEHGS. During maintenance action, a manually controlled pressure relief valve lets relief the accumulator pressure. Hydraulic fuses are also installed on the brake hydraulic circuit to prevent from an excessive fluid loss. After brake change, these fuses may close if the bleed valve is opened at high flow. The LEHGS reservoir servicing is an automatic function and does not require any accumulator servicing. CPIOM is powered by 28 VDC from DC BUS 1 or 2. EBCU is powered by 28 VDC from DC ESSential BUS or DC HOT BUS 1. WLG LEHGS is powered by 115 VAC from AC BUS 3.


WHEELS & BRAKING SYSTEM DESCRIPTION (2)

Apr 18, 2006 Page 36



SYSTEM ARCHITECTURE - WLG BRAKING SYSTEM MAINTENANCE COURSE - T1 & T2 (RR / Metric) LEVEL II - ATA 32 Landing Gears


Apr 18, 2006 Page 37


WHEELS & BRAKING SYSTEM DESCRIPTION (2) System Architecture (continued)


BLG Braking System The Body Landing Gear (BLG) normal, alternate and emergency modes have the same operations as WLG braking system. Parking brake is only applied on BLG. Yellow hydraulic power supplies the BLG braking hydraulic circuit. For parking brake, there is one circuit for each BLG. A LEHGS accumulator supplies alternate and parking brake circuit. This accumulator gives 12 hours supply. Parking brake system is powered by 28 VDC from GND service bus or HOT BUS. It is available even if either A/C is powered or not. On ground, the PARK BRAKE ON light, located on the NLG steering disconnection box, shows the status of the parking brake system. This light receives signal from parking brake selector valves. The hydraulic pressure available to the system (from the accumulators) and the brake pressure supplied to the BLG brakes are shown on a triple pressure gage in the cockpit. This gage receives signal from the EBCU and pressure transmitters. During maintenance action, a manually controlled pressure relief valve lets relief the accumulator pressure. Hydraulic fuses are also installed on the brake hydraulic circuit to prevent from an excessive fluid loss. After brake change, these fuses may close if the bleed valve is opened at high flow. The LEHGS reservoir servicing is an automatic function and does not require any accumulator servicing. CPIOM is powered by 28 VDC from DC BUS 1 or 2. EBCU is powered by 28 VDC from DC ESSential BUS or DC HOT BUS 1. The parking brake selector valve is powered by 28 VDC from DC GND SerViCe BUS or DC HOT BUS 1. BLG LEHGS is powered by 115 VAC from AC BUS 2. MAINTENANCE COURSE - T1 & T2 (RR / Metric) LEVEL II - ATA 32 Landing Gears


Apr 18, 2006 Page 38



SYSTEM ARCHITECTURE - BLG BRAKING SYSTEM MAINTENANCE COURSE - T1 & T2 (RR / Metric) LEVEL II - ATA 32 Landing Gears


Apr 18, 2006 Page 39


WHEELS & BRAKING SYSTEM DESCRIPTION (2) TPIS & BTMS


Tire Pressure Indicating System (TPIS) is hosted in the CPIOM. Sensors monitor tire pressure values and send them to the CPIOM via the Landing Gears Remote Data Concentrator (L/G RDC). Then, tire pressure is shown on the ECAM WHEEL page. Tire pressure correct values and deflation limitations are given in the AMM. Incorrect values may lead to wheel replacement. Brake Temperature Monitoring System is also hosted in the CPIOM. Temperature sensors monitor brake temperature and transmit these values to the CPIOM via the L/G RDC. Brake temperatures are shown on the ECAM wheel page. Green indications mean that brake temperature values are correct. Amber indications mean that brakes are hot. In this case, the BraKe FAN P/BSW must be switched ON if installed on the L/G panel. Related warnings will be shown on the EWD. The CPIOM is powered by 28 VDC from DC BUS 1 or 2. The L/G RDC is powered by 28 VDC from DC BUS 2 or DC ESS BUS.



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TPIS & BTMS MAINTENANCE COURSE - T1 & T2 (RR / Metric) LEVEL II - ATA 32 Landing Gears


Apr 18, 2006 Page 41


WHEELS & BRAKING SYSTEM DESCRIPTION (2) Wheel/Brake Change A/C Preparation Before wheel or brake change, tire and brake wear limits can be checked in the AMM. A brake wear indicator is fitted on each wheel brake. A specific jacking tool is required before wheel or brake replacement. A safety pin can be installed on BLG steering axle to isolate BLG steering before any wheel or brake change. All main wheels and brakes are interchangeable except BLG steering wheels. Human factor points: CAUTION: WHEN JACKING THE A/C, A SPECIFIC JACKING TOOL MUST BE USED TO AVOID DAMAGE ON THE A/C DOME.


WARNING: BLG STEERING MUST BE ISOLATED WITH SAFETY PIN BEFORE BLG WHEEL OR BRAKE CHANGE.



Apr 18, 2006 Page 42



WHEEL/BRAKE CHANGE - A/C PREPARATION MAINTENANCE COURSE - T1 & T2 (RR / Metric) LEVEL II - ATA 32 Landing Gears


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WHEEL/BRAKE CHANGE - A/C PREPARATION MAINTENANCE COURSE - T1 & T2 (RR / Metric) LEVEL II - ATA 32 Landing Gears


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WHEELS & BRAKING SYSTEM DESCRIPTION (2) Wheel/Brake Change (continued) A/C Jacking To jack the A/C, one jacking dome is fitted on each bogie beam. The A380 requires a specific 137 tons (274,000 lbs) jack spherical with a stroke limitation of 250 mm (9.84 in.). This is to prevent airframe from being overloaded at high A/C weight above 400 tons (800,000 lbs). The A380 jacking dome is type V opposed to the A330/A340 one, which is type IV. NOTE: Note: For wheel or brake removal on BLG center bogie, two jacking tools are required on FWD and AFT bogie beams. Stroke limitation is at 250 mm (9.84 in.). Human factor points: WARNING: REFER TO AMM FOR JACKING LIMITATIONS DURING FUEL, CARGO OR PAX LOADING.


CAUTION: KEEP THE A/C CLEAR FROM GROUND EQUIPMENT WHEN JACKING.



Apr 18, 2006 Page 46



WHEEL/BRAKE CHANGE - A/C JACKING MAINTENANCE COURSE - T1 & T2 (RR / Metric) LEVEL II - ATA 32 Landing Gears


Apr 18, 2006 Page 47



WHEEL/BRAKE CHANGE - A/C JACKING MAINTENANCE COURSE - T1 & T2 (RR / Metric) LEVEL II - ATA 32 Landing Gears


Apr 18, 2006 Page 48






Apr 18, 2006 Page 49


WHEELS & BRAKING SYSTEM OPS, CTL & IND (2)

L1W06161 - L0KT0T0 - LM32OTLEVEL0201

General



Apr 18, 2006 Page 50





Apr 18, 2006 Page 51


WHEELS & BRAKING SYSTEM OPS, CTL & IND (2) Normal Braking


Alternate Braking



Apr 18, 2006 Page 52



NORMAL BRAKING & ALTERNATE BRAKING MAINTENANCE COURSE - T1 & T2 (RR / Metric) LEVEL II - ATA 32 Landing Gears


Apr 18, 2006 Page 53




Parking Brake



Apr 18, 2006 Page 54



PARKING BRAKE MAINTENANCE COURSE - T1 & T2 (RR / Metric) LEVEL II - ATA 32 Landing Gears


Apr 18, 2006 Page 55




System Maintenance



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SYSTEM MAINTENANCE MAINTENANCE COURSE - T1 & T2 (RR / Metric) LEVEL II - ATA 32 Landing Gears


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Apr 18, 2006 Page 61


STEERING SYSTEM DESCRIPTION (2)

L1W06161 - L0KT0T0 - LM32DSLEVEL0201

N/WS Nose Wheel Steering (N/WS) has two operation modes: - the normal N/WS, - and the alternate N/WS. In normal mode, the N/WS system is powered by the green hydraulic system. The steering control system, which controls steering operation, is a redundant CPIOM hosted application. This application receives the steering orders from the rudder pedals, the autopilot, or handwheels. Normal steering selector valve and the steering servo-metering valve are operated to get the N/WS position. In case of green hydraulic system low pressure, the alternate system uses the hydraulic power from the Local Electro-Hydraulic Generation System (LEHGS) and from the accumulator. The steering control system controls, via CPIOMs, the alternate steering selector valve. In case of an overpressure, a pressure relief valve can be manually operated to release pressure from the accumulator. The LEHGS is composed of an independent reservoir and an internal electrical motor pump. LEHGS reservoir servicing is an automatic function and does not require any accumulator servicing. The alternate refilling valve is opened after engine start to replenish the accumulator and LEHGS reservoir. The CPIOM is powered by 28 VDC from DC BUS 1 or 2 and the Nose Landing Gear (NLG) LEHGS is supplied by 115 VAC from AC BUS 3. N/WS can be disconnected from NLG steering disconnection box. This operation is required during A/C towing and will be done via a tow switch and its related safety pin. In this case, N/WS disconnection is indicated on the EWD.



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N/WS MAINTENANCE COURSE - T1 & T2 (RR / Metric) LEVEL II - ATA 32 Landing Gears


Apr 18, 2006 Page 63




BLG Steering The Body Landing Gear (BLG) steering system is powered from the yellow hydraulic system. Hydraulic pressure is from: - engine driven pumps 3 or 4, - or electric motor pumps. The electric motor pumps are powered by 115 VAC from AC BUS 3 and 4. The BLG steering is controlled and monitored by the steering control system. It is also function of NLG wheel position: BLG steering is only available if NLG wheel position is more than 20°. On ground, when N/WS is disconnected, BLG steering requires electrical and hydraulic powers to operate. The CPIOMs drive the bay mounted selector valve, which controls yellow hydraulic supply to both LH and RH BLG steering wheels. This valve is used to inhibit hydraulic fluid. Selector valves can isolate the servo-metering valves, which regulate hydraulic pressure on steering actuators. Lock selector valves operate the locking actuators, which allow or not the steering of BLG rear axles. Selector valves, servo-metering valves and lock selector valves are controlled from CPIOM via a Remote Data Concentrator (RDC). Status of the BLG steering is available on the NLG disconnection box. On ground, BLG steering can be isolated by installing a safety pin on a wedge lock. Human factor point: WARNING: BLG steering wheels movement can cause injury to persons near the BLG.



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BLG STEERING MAINTENANCE COURSE - T1 & T2 (RR / Metric) LEVEL II - ATA 32 Landing Gears


Apr 18, 2006 Page 65



BLG STEERING MAINTENANCE COURSE - T1 & T2 (RR / Metric) LEVEL II - ATA 32 Landing Gears


Apr 18, 2006 Page 66






Apr 18, 2006 Page 67


STEERING SYSTEM OPERATION, CONTROL & IND (2)

L1W06161 - L0KT0T0 - LM32OSLEVEL0201

General



Apr 18, 2006 Page 68





Apr 18, 2006 Page 69


STEERING SYSTEM OPERATION, CONTROL & IND (2) Nose Wheel Steering Normal Operation


Nose Wheel Steering Disconnection



Apr 18, 2006 Page 70



NOSE WHEEL STEERING - NORMAL OPERATION & NOSE WHEEL STEERING DISCONNECTION MAINTENANCE COURSE - T1 & T2 (RR / Metric) LEVEL II - ATA 32 Landing Gears


Apr 18, 2006 Page 71


STEERING SYSTEM OPERATION, CONTROL & IND (2) Body Wheel Steering NOTE: When powered from EMP, only BWS is supplied, all other users are isolated.


CAUTION: EMP may continue running if nose wheels are not centered.



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BODY WHEEL STEERING MAINTENANCE COURSE - T1 & T2 (RR / Metric) LEVEL II - ATA 32 Landing Gears


Apr 18, 2006 Page 73


COMPONENT LOCATION (2) Cockpit NLG Human factor point: CAUTION: Do not step on antennae fitted on NLG. Human factor point: CAUTION: Safety pin flag must be visible.

WLG Human factor point: CAUTION: Safety pin flag must be visible.

BLG Human factor point:

L1W06161 - L0KT0T0 - LM32CVLEVEL0201

CAUTION: Safety pin flag must be visible.


COMPONENT LOCATION (2)

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L1W06161 - L0KT0T0 - LM32CVLEVEL0201



COMPONENT LOCATION (2)

Apr 18, 2006 Page 75

AIRBUS S.A.S. 31707 BLAGNAC cedex, FRANCE STM REFERENCE L1W06161 APRIL 2006 PRINTED IN FRANCE AIRBUS S.A.S. 2006 ALL RIGHTS RESERVED AN EADS JOINT COMPANY WITH BAE SYSTEMS

Level II - Ata 32 Landing Gears

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