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UF94200
EFFECTIVITY Page 28
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ECAM PAGE PRESENTATION
TMUHYD501-P03 LEVEL 1
EFFECTIVITY 29-30-00 Page 5
Jun 30/99
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 29 HYDRAULIC POWER
UF94200
EFFECTIVITY Page 29
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ECAM PAGE PRESENTATION
POWER TRANSFER UNIT
When PTU is running HYD PTU is displayed green on MEMO
display.
SYSTEM PRESSURE
System pressure indication is normally green. It
becomes amber when the system pressure is too low.
3000 -green: System presure is normal.
1430 -amber: System pressure is too low (pressure below
1450 psi=100 bars).
SYSTEM LABEL
System label is a white word and a green arrow when
the pressure is normal.
Both the word and the arrow are amber when pressure
is too low.
TMUHYD501-T04 LEVEL 1
EFFECTIVITY 29-30-00 Page 6
Jun 30/99
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 29 HYDRAULIC POWER
UF94200
EFFECTIVITY Page 30
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ECAM PAGE PRESENTATION
TMUHYD501-P04 LEVEL 1
EFFECTIVITY 29-30-00 Page 7
Jun 30/99
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 29 HYDRAULIC POWER
UF94200
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THIS PAGE INTENTIONALLY LEFT BLANK
TMUHYD501 LEVEL 1
EFFECTIVITY 29-30-00 Page 8
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_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 29 HYDRAULIC POWER
UF94200
EFFECTIVITY Page 32
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29 - HYDRAULIC POWER
29-00-00 HYDRAULIC SYSTEM WARNINGS
CONTENTS:
Green Reservoir Low Air Pressure
Yellow Reservoir Overheat
Blue Reservoir Low Level
Green Engine Pump Low Pressure
Yellow Electric Pump Low Pressure
Dual System Low Pressure
Ram Air Turbine Fault
Power Transfer Unit Fault
Yellow Electric Pump Overheat
TMUHYD602 LEVEL 3
EFFECTIVITY 29-00-00 Page 1
Jun 30/99
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 29 HYDRAULIC POWER
UF94200
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HYDRAULIC SYSTEM WARNINGS
TMUHYD602-P01 LEVEL 3
EFFECTIVITY 29-00-00 Page 2
Jun 30/99
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 29 HYDRAULIC POWER
UF94200
EFFECTIVITY Page 34
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HYDRAULIC SYSTEM WARNINGS
TMUHYD602-P02 LEVEL 3
EFFECTIVITY 29-00-00 Page 3
Jun 30/99
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 29 HYDRAULIC POWER
UF94200
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THIS PAGE INTENTIONALLY LEFT BLANK
TMUHYD602 LEVEL 3
EFFECTIVITY 29-00-00 Page 4
Jun 30/99
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 29 HYDRAULIC POWER
UF94200
EFFECTIVITY Page 36
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29 - HYDRAULIC POWER
29-11-00 GREEN HYDRAULIC SYSTEM D/O
CONTENTS:
Reservoir
Reservoir Pressurization
Fire Valve
Engine Driven Pump
Ground Couplings
Pressure Switch
Power Transfer Unit
High Pressure Manifold
Leak Measurement Manifold
Power Transfer Unit Manifold
Return Manifold
Self Examination
TMUHYDB03 LEVEL 3
EFFECTIVITY 29-11-00 Page 1
Jul 31/00
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 29 HYDRAULIC POWER
UF94200
EFFECTIVITY Page 37
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GREEN HYDRAULIC SYSTEM D/O
Most of the system components are installed in the
main landing gear compartment.
RESERVOIR
The reservoir is equipped with a direct reading gauge,
a quantity indicator and a low level switch for ECAM
indicating and warning.
Normal fill level: 14 l. (3.7 US gal)
Maximum gaugeable level: 18 l. (4.76 US gal)
Low level warning: 3.0 ± 0.4 l. (0.79 ± 0.1 US gal)
RESERVOIR PRESSURIZATION
The reservoir is normally pressurized with air to
prevent cavitation of the pumps.
The reservoir is pressurized to 50 psi (3.43 bar) and
is sealed to hold the pressure when there is no air
supply.
The threshold of the low pressure switch is 22 psi
(1.52bar).
FIRE VALVE
The green system fire valve installed in the left hand
wing, inboard of the pylon, is controlled by ENG 1
FIRE push-button.
When the valve closes it stops the supply of fluid to
the Engine Driven Pump.
ENGINE DRIVEN PUMP
The Engine Driven Pump is attached to the accessory
gearbox. A solenoid valve controlled by the ENG 1 PUMP
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