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UF94200
EFFECTIVITY Page 324
ALL
SERVICING PROCEDURES - NITROGEN FILLING OF THE MLG TWO-STAGE SHOCK ABSORBER (metric units)
TMULDGA06-P03 LEVEL 3
EFFECTIVITY 32-00-00 Page 7
Sep 30/98
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 32 LANDING GEAR
UF94200
EFFECTIVITY Page 325
ALL
MAIN LANDING GEAR SHOCK ABSORBER SERVICING
SERVICING PROCEDURES
Nitrogen Filling of the MLG Two-Stage Shock Absorber
(US units)
TMULDGA06-T04 LEVEL 3
EFFECTIVITY 32-00-00 Page 8
Sep 30/98
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 32 LANDING GEAR
UF94200
EFFECTIVITY Page 326
ALL
TMULDGA06-P04 LEVEL 3
SERVICING PROCEDURES - NITROGEN FILLING OF THE MLG TWO-STAGE SHOCK ABSORBER (US units)
EFFECTIVITY 32-00-00 Page 9
Sep 30/98
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 32 LANDING GEAR
UF94200
EFFECTIVITY Page 327
ALL
MAIN LANDING GEAR SHOCK ABSORBER SERVICING
NITROGEN FILLING OF THE MLG TWO-STAGE SHOCK ABSORBER
This film includes several procedures or parts of
procedures of the shock absorber servicing:
- Check Charge Pressure of the Main Landing Gear
Shock Absorber,
- Visual Inspection of the Main Landing Gear
Two-Stage Shock Absorber for Leakage of
Hydraulic Fluid,
- Nitrogen Filling of the Main Landing Gear
Two-Stage Shock Absorber (Aircraft on the
Ground).
The values of some parameters such as temperature,
pressure, etc, have to be recorded to perform this
procedure. Depending on the value obtained, some parts
must or must not be done, referring to the Aircraft
Maintenance Manual.
Of course, when you will effectively do it, you will
have to adapt your actions to the values you will
obtain. In no case, can the values used in this film
be used as a reference.
WARNING: PUT THE SAFETY DEVICES AND THE WARNING NOTICES
IN POSITION BEFORE YOU START A TASK ON OR
NEAR:
- THE FLIGHT CONTROLS,
- THE FLIGHT CONTROL SURFACES,
- THE LANDING GEAR AND THE RELATED DOORS,
- ANY COMPONENTS THAT MOVE.
MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE
IN POSITION ON THE LANDING GEAR.
Note that it is recommended that you wait a minimum
of ten minutes after taxiing or towing before you carry
out this procedure. This will allow to get a stable
temperature and a more accurate value of the shock
absorber extension and pressures.
During this procedure, actions will be made on the top
charging valve (also called valve A), and on the bottom
charging valve (also called valve B).
A placard located underneath the top charging valve
gives you a summary of the information necessary to
perform this procedure.
It consists of:
- a gear schematic which shows you where you have
to measure the height H,
- a summarized actions list which presents the
main points necessary to perform the dedicated
procedures,
- DIAGRAM 1 which allows you to find a target
value H depending on the measured temperature
and the pressure on the top charging valve,
- DIAGRAM 2 which gives the same information,
but for a different step of the procedure,
- DIAGRAM 3 enables you to find the position
of a point determined by the temperature
and the pressure values in relation to a
graph line.
TMULDGA06-T05 LEVEL 3
EFFECTIVITY 32-00-00 Page 10
Sep 30/98
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 32 LANDING GEAR
UF94200
EFFECTIVITY Page 328
ALL
NITROGEN FILLING OF THE MLG TWO-STAGE SHOCK ABSORBER - SHOCK ABSORBER SCHEMATIC
TMULDGA06-P05 LEVEL 3
EFFECTIVITY 32-00-00 Page 11
Sep 30/98
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 32 LANDING GEAR
UF94200
EFFECTIVITY Page 329
ALL
MAIN LANDING GEAR SHOCK ABSORBER SERVICING
NITROGEN FILLING OF THE MLG TWO-STAGE SHOCK ABSORBER
(cont’d)
PREPARATION
In the cockpit,
make sure that the landing gear control lever is in
the DOWN position and put a warning notice in position
to tell people not to operate the landing gear.
On the outside,
- make sure that the wheel chocks are in position
on the main landing gear, but do not put a
chock on the nose wheel,
- put a warning notice in position to tell persons
not to operate the landing gear doors,
- put the access platform in position below the
applicable shock absorber.
Before filling with nitrogen, examine the gland housing
　
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