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EFFECTIVITY Page 79
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SEAL DRAIN SYSTEM PRESENTATION
GENERAL
The seal drain system collects hydraulic fluid from
the seal drains of some hydraulic components.
The hydraulic fluid which may escape from some
hydraulic components (leak or abnormal condition such
as hydraulic reservoir overfilling or internal
overpressure) is drained into collector tanks.
FORWARD SYSTEM
The forward system consists of flexible hoses and rigid
pipes connected to a collector tank.
The forward collector tank is attached between the
frames 40 and 41 in the yellow hydraulic compartment.
The components which are drained into the forward
collector tank located in the yellow hydraulic
compartment are:
- Blue electric pump
- Yellow electric pump
- Slats Power Control Unit (PCU)
- Green hydraulic reservoir
- Yellow hydraulic reservoir
TMUHYAA02-T01 LEVEL 2
EFFECTIVITY 29-17-00 Page 2
Apr 30/98
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 29 HYDRAULIC POWER
UF94200
EFFECTIVITY Page 80
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SEAL DRAIN SYSTEM PRESENTATION - GENERAL - FORWARD SYSTEM
TMUHYAA02-P01 LEVEL 2
EFFECTIVITY 29-17-00 Page 3
Apr 30/98
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 29 HYDRAULIC POWER
UF94200
EFFECTIVITY Page 81
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SEAL DRAIN SYSTEM PRESENTATION
AFT SYSTEM
The aft system consists of flexible hoses and rigid
pipes connected to a collector tank.
The aft collector tank is attached to the right side
of the keel beam in the main hydraulic compartment.
The components which are drained into the aft collector
located in the main landing gear compartment are:
- Flaps Power Control Unit (PCU)
- Power Transfer Unit (PTU)
- Constant Speed Motor / Generator (CSM / G)
- Blue hydraulic reservoir
TMUHYAA02-T02 LEVEL 2
EFFECTIVITY 29-17-00 Page 4
Apr 30/98
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 29 HYDRAULIC POWER
UF94200
EFFECTIVITY Page 82
ALL
SEAL DRAIN SYSTEM PRESENTATION - AFT SYSTEM
TMUHYAA02-P02 LEVEL 2
EFFECTIVITY 29-17-00 Page 5
Apr 30/98
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 29 HYDRAULIC POWER
UF94200
EFFECTIVITY Page 83
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SEAL DRAIN SYSTEM PRESENTATION
TANK DRAINAGE
The system is designed so that the hydraulic fluid
drains into the collector tanks by gravity.
The collector tanks attached to the aircraft structure
by means of quick release clamps must be removed for
drainage.
Each collector tank, which has a capacity of 0.75
liters (0.19 US Gal), must be emptied and cleaned at
regular intervals.
TMUHYAA02-T03 LEVEL 2
EFFECTIVITY 29-17-00 Page 6
Apr 30/98
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 29 HYDRAULIC POWER
UF94200
EFFECTIVITY Page 84
ALL
SEAL DRAIN SYSTEM PRESENTATION - TANK DRAINAGE
TMUHYAA02-P03 LEVEL 2
EFFECTIVITY 29-17-00 Page 7
Apr 30/98
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 29 HYDRAULIC POWER
UF94200
EFFECTIVITY Page 85
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THIS PAGE INTENTIONALLY LEFT BLANK
TMUHYAA02 LEVEL 2
EFFECTIVITY 29-17-00 Page 8
Apr 30/98
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 29 HYDRAULIC POWER
UF94200
EFFECTIVITY Page 86
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29 - HYDRAULIC POWER
29-11-00 GREEN SYSTEM COMPONENTS
CONTENTS:
Leakage Measurement Manifold
High Pressure Manifold
Engine Driven Pump 1
EDP 1 Case Drain Filter
EDP 1 Pressure Switch
Engine Fire Valve
Reservoir
Return Manifold
Ground Service Panel
TMUHYDI03 LEVEL 3
EFFECTIVITY 29-11-00 Page 1
Nov 30/99
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 29 HYDRAULIC POWER
UF94200
EFFECTIVITY Page 87
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GREEN SYSTEM COMPONENTS
SAFETY PRECAUTIONS
WARNING: When using the manual depressurization valve
put on hand and eye protection and keep away
from the outlet of the valve. The air can be
hot and contain particles of dust and/or
hydraulic fluid.
LEAKAGE MEASUREMENT MANIFOLD
IDENTIFICATION
FIN : 1146 GM
LOCATION
ZONE : 145
DESCRIPTION
The ground leakage measurement manifolds of the three
hydraulic systems are identical.The manifold has two
pairs of inlet ports, identified as A and B. As only
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