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IDENTIFICATION
FIN: 24QJ1, 24QJ2, 25QJ1, 25QJ2, 26QJ1, 26QJ2
LOCATION
ZONE: 540, 640
COMPONENT DESCRIPTION
The Underfull level sensors control Center tank pumps
operation.
TMUFUEO01-T03 LEVEL 3
EFFECTIVITY 28-46-00 Page 6
Jul 31/98
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 28 FUEL SYSTEM
UF94200
EFFECTIVITY Page 284
ALL
FUEL LEVEL SENSING COMPONENTS - FULL LEVEL SENSOR - UNDERFULL LEVEL SENSOR
TMUFUEO01-P03 LEVEL 3
EFFECTIVITY 28-46-00 Page 7
Jul 31/98
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 28 FUEL SYSTEM
UF94200
EFFECTIVITY Page 285
ALL
FUEL LEVEL SENSING COMPONENTS
OVERFLOW SENSOR
IDENTIFICATION
FIN: 28QJ1, 28QJ2
LOCATION
ZONE: 550, 650
COMPONENT DESCRIPTION
This sensor detects if fuel from the wing tank
overflows into the vent surge tank.
WING TK TEMPERATURE SENSOR
IDENTIFICATION
FIN: 29QJ1, 29QJ2, 30QJ1, 30QJ2
LOCATION
ZONE: 540, 640
COMPONENT DESCRIPTION
The temperature sensor is similar to the level sensor
but has a platinium wire resistor in place of the
thermistor. R = 1,000 ohms at 0 degree C.
TMUFUEO01-T04 LEVEL 3
EFFECTIVITY 28-46-00 Page 8
Jul 31/98
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 28 FUEL SYSTEM
UF94200
EFFECTIVITY Page 286
ALL
FUEL LEVEL SENSING COMPONENTS - OVERFLOW SENSOR - WING TK TEMPERATURE SENSOR
TMUFUEO01-P04 LEVEL 3
EFFECTIVITY 28-46-00 Page 9
Jul 31/98
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 28 FUEL SYSTEM
UF94200
EFFECTIVITY Page 287
ALL
FUEL LEVEL SENSING COMPONENTS
FUEL LEVEL SENSING CONTROL UNIT
IDENTIFICATION
FIN: 7QJ, 9QJ
LOCATION
ZONE: 121
COMPONENT DESCRIPTION
Each unit contains a channel for each level and
temperature sensor. The BITE to check the sensor input
and output circuitry is controlled and monitored by
the FQIC.
TMUFUEO01-T05 LEVEL 3
EFFECTIVITY 28-46-00 Page 10
Jul 31/98
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 28 FUEL SYSTEM
UF94200
EFFECTIVITY Page 288
ALL
FUEL LEVEL SENSING COMPONENTS - FUEL LEVEL SENSING CONTROL UNIT
TMUFUEO01-P05 LEVEL 3
EFFECTIVITY 28-46-00 Page 11
Jul 31/98
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 28 FUEL SYSTEM
UF94200
EFFECTIVITY Page 289
ALL
FUEL LEVEL SENSING COMPONENTS
IDG SHUT-OFF SENSOR
IDENTIFICATION
FIN: 38QJ1, 38QJ2
LOCATION
ZONE: 540, 640
COMPONENT DESCRIPTION
At low fuel state the IDG cooling fuel recirculation
is stopped when signalled by the IDG SHUT-OFF level
sensor in the Inner cell, in order to avoid an increase
in the amount of unusable fuel that would otherwise
flow over the tank floor.
TMUFUEO01-T06 LEVEL 3
EFFECTIVITY 28-46-00 Page 12
Jul 31/98
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 28 FUEL SYSTEM
UF94200
EFFECTIVITY Page 290
ALL
FUEL LEVEL SENSING COMPONENTS - IDG SHUT-OFF SENSOR
TMUFUEO01-P06 LEVEL 3
EFFECTIVITY 28-46-00 Page 13
Jul 31/98
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 28 FUEL SYSTEM
UF94200
EFFECTIVITY Page 291
ALL
THIS PAGE INTENTIONALLY LEFT BLANK
TMUFUEO01 LEVEL 3
EFFECTIVITY 28-46-00 Page 14
Jul 31/98
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 28 FUEL SYSTEM
UF94200
EFFECTIVITY Page 292
ALL
28 - FUEL SYSTEM
28-20-00 ENGINE AND APU FUEL FEED
PRESENTATION
CONTENTS:
Main Pumps
Suction Valves
Crossfeed Valve
LP Valves
Pressure Switches
Air Release Valve
Center Tank XFR Valves
Jet Pumps
APU Pump
Self Examination
TMUFUE102 LEVEL 1
EFFECTIVITY 28-20-00 Page 9
Jul 31/98
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 28 FUEL SYSTEM
UF94200
EFFECTIVITY Page 293
ALL
ENGINE AND APU FUEL FEED PRESENTATION
MAIN PUMPS
Each main tank has 2 centrifugal booster pumps
installed in canisters capable of supplying the engines
with fuel at the required pressure and flow rate. The
canisters have an inlet connected to the fuel
strainers.
SUCTION VALVES
　
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