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clear.
DOORS OPENING
Stand AFT of the gear leg.
Disengage the safety pin, press the button at the end
of the handle and rotate the handle to the open
position.
Doors open by gravity.
Lock them with the safety pins.
CAUTION: A SAFETY PIN MUST BE FITTED ON EACH DOOR
IMMEDIATELY AFTER IT HAS BEEN OPENED ON THE
GROUND AND BEFORE WORKING IN THE NOSE GEAR
WELL.
ADJUST THE DOOR POSITION MANUALLY TO EASE THE
INSTALLATION OF THE SAFETY PIN IF NECESSARY.
DOORS CLOSING PREPARATION
After servicing, the doors can be closed, here are
some precautions that have to be taken:
In the cockpit,
- landing gear control lever DOWN with the
warning notice in position,
- landing gear free fall crank handle in the
normal position: folded and the warning notice
in position,
- green hydraulic system depressurized.
On the ground,
- make certain that the ground door opening
control handle is locked in the open position,
- remove the safety pin from the doors,
- make certain that the door travel ranges are
clear.
In the cockpit again,
- make sure that the external power is ON,
- pressurize the green hydraulic system,
- check the pressure on the ECAM page.
TMULDGC03-T02 LEVEL 2
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_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 32 LANDING GEAR
UF94200
EFFECTIVITY Page 68
ALL
LANDING GEAR DOORS GROUND OPERATION - NOSE LANDING GEAR DOORS GROUND OPERATION
TMULDGC03-P02 LEVEL 2
EFFECTIVITY 32-00-00 Page 5
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_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 32 LANDING GEAR
UF94200
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ALL
LANDING GEAR DOORS GROUND OPERATION
NOSE LANDING GEAR DOORS GROUND OPERATION (CONTINUED)
DOORS CLOSING
On the ground,
- reposition the ground door opening control
handle in the CLOSED position (the doors close)
and put the safety pin back in position.
In the cockpit,
- check that doors are UP and LOCKED, on the
WHEEL ECAM page,
- depressurize the hydraulic systems,
- and remove the warning notices.
TMULDGC03 LEVEL 2
EFFECTIVITY 32-00-00 Page 6
Jul 31/96
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 32 LANDING GEAR
UF94200
EFFECTIVITY Page 70
ALL
32 - LANDING GEAR
32-00-00 LANDING GEAR DOORS GROUND
OPENING DESCRIPTION/OPERATION
CONTENTS:
General
Main Doors
Nose Doors
Hydraulic Operation
TMULDGW01 LEVEL 3
EFFECTIVITY 32-00-00 Page 1
Aug 31/96
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 32 LANDING GEAR
UF94200
EFFECTIVITY Page 71
ALL
LANDING GEAR DOORS GROUND OPENING DESCRIPTION/OPERATION
GENERAL
Each main door and nose door has a ground door opening
system that comprises these primary components :
- a ground door opening control handle,
- a mechanical transmission,
- a by-pass valve,
- a release mechanism in the door uplock.
The control handle has two lockable positions.
When it is set to the "DOOR OPEN" position, it causes
the mechanical system to :
- operate the door by-pass valve,
- release the door from its uplock.
This prevents a hydraulic lock, and allows the
hydraulic fluid to be released from the door actuating
cylinder "DOOR CLOSED" line. The door then moves by
gravity.
MAIN DOORS
The ground opening control handle is located forward
of the respective main landing gear bay into the
hydraulic compartment. This location places the
operator in a safe position with a clear view of the
door travel.
The handle is connected through a push-pull cable to
the door by-pass valve on the outboard side of the
main landing gear bay.
NOSE DOORS
The ground opening control handle is located in a
housing in the aft of the nose landing gear bay. This
location places the operator in a safe position with
a clear view of the door travel.
The handle is connected to a lay shaft on the door
by-pass valve and the door uplock on the left hand
side wall of the nose landing gear bay.
TMULDGW01-T01 LEVEL 3
EFFECTIVITY 32-00-00 Page 2
Aug 31/96
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 32 LANDING GEAR
UF94200
EFFECTIVITY Page 72
ALL
LANDING GEAR AND DOORS GROUND OPENING DESCRIPTION/OPERATION - MAIN DOORS - NOSE DOORS
TMULDGW01-P01 LEVEL 3
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