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UF94200
EFFECTIVITY Page 151
ALL
ENGINE AND APU COMPONENTS
PRESSURE HOLDING VALVE (recirculation/cooling)
IDENTIFICATION
FIN: 124QM, 125QM
LOCATION
ZONE: 540, 640
COMPONENT DESCRIPTION
Valve maintains line pressure of 18 psi; if pressure
increases, fuel bleeds into outer cell.
TMUFUEL01-T01 LEVEL 3
EFFECTIVITY 28-20-00 Page 2
Apr 30/96
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 28 FUEL SYSTEM
UF94200
EFFECTIVITY Page 152
ALL
TMUFUEL01-P01 LEVEL 3
ENGINE AND APU COMPONENTS - PRESSURE HOLDING VALVE (recirculation/cooling)
EFFECTIVITY 28-20-00 Page 3
Apr 30/96
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 28 FUEL SYSTEM
UF94200
EFFECTIVITY Page 153
ALL
ENGINE AND APU COMPONENTS
CHECK VALVE (recirculation/cooling)
IDENTIFICATION
FIN: 122QM, 123QM
LOCATION
ZONE: 471, 481
COMPONENT DESCRIPTION
One fuel recirculation check valve is mounted on the
lower side of the bottom skin between ribs 7 and 8 and
prevents reverse flow from the tank to the engine in
the event of a fuel pipe failure.
TMUFUEL01-T02 LEVEL 3
EFFECTIVITY 28-20-00 Page 4
Apr 30/96
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 28 FUEL SYSTEM
UF94200
EFFECTIVITY Page 154
ALL
TMUFUEL01-P02 LEVEL 3
ENGINE AND APU COMPONENTS - CHECK VALVE (recirculation/cooling)
EFFECTIVITY 28-20-00 Page 5
Apr 30/96
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 28 FUEL SYSTEM
UF94200
EFFECTIVITY Page 155
ALL
ENGINE AND APU COMPONENTS
CROSSFEED VALVE
IDENTIFICATION
FIN: 10QM
LOCATION
ZONE: 142
COMPONENT DESCRIPTION
Access to Crossfeed valve:
- defuel Center tank
- open main door of RH main gear
- remove manhole cover 148AZ.
TMUFUEL01-T03 LEVEL 3
EFFECTIVITY 28-20-00 Page 6
Apr 30/96
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 28 FUEL SYSTEM
UF94200
EFFECTIVITY Page 156
ALL
TMUFUEL01-P03 LEVEL 3
ENGINE AND APU COMPONENTS - CROSSFEED VALVE
EFFECTIVITY 28-20-00 Page 7
Apr 30/96
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 28 FUEL SYSTEM
UF94200
EFFECTIVITY Page 157
ALL
ENGINE AND APU COMPONENTS
CROSSFEED VALVE ACTUATOR
IDENTIFICATION
FIN: 5QE
LOCATION
ZONE: 148
COMPONENT DESCRIPTION
The Crossfeed valve actuator has twin electric motors
which drive a common differential gear to turn the
spherical plug through 90 degrees. This gear allows
either motor to drive the valve if the other motor is
inoperative.
TMUFUEL01-T04 LEVEL 3
EFFECTIVITY 28-20-00 Page 8
Apr 30/96
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 28 FUEL SYSTEM
UF94200
EFFECTIVITY Page 158
ALL
TMUFUEL01-P04 LEVEL 3
ENGINE AND APU COMPONENTS - CROSSFEED VALVE ACTUATOR
EFFECTIVITY 28-20-00 Page 9
Apr 30/96
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 28 FUEL SYSTEM
UF94200
EFFECTIVITY Page 159
ALL
ENGINE AND APU COMPONENTS
ENGINE LP FUEL VALVE
IDENTIFICATION
FIN: 12QM, 13QM
LOCATION
ZONE: 520, 620
COMPONENT DESCRIPTION
Each Engine LP valve is bolted to a mounting on the
wing front spar.
TMUFUEL01-T05 LEVEL 3
EFFECTIVITY 28-20-00 Page 10
Apr 30/96
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 28 FUEL SYSTEM
UF94200
EFFECTIVITY Page 160
ALL
TMUFUEL01-P05 LEVEL 3
ENGINE AND APU COMPONENTS - ENGINE LP FUEL VALVE
EFFECTIVITY 28-20-00 Page 11
Apr 30/96
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 28 FUEL SYSTEM
UF94200
EFFECTIVITY Page 161
ALL
ENGINE AND APU COMPONENTS
ENGINE LP FUEL VALVE ACTUATOR
IDENTIFICATION
FIN: 9QG, 10QG
LOCATION
ZONE: 520, 620
COMPONENT DESCRIPTION
The epicyclic gear allows one of the 2 motors to turn
the spherical plug if the other motor is inoperative.
TMUFUEL01-T06 LEVEL 3
EFFECTIVITY 28-20-00 Page 12
Apr 30/96
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 28 FUEL SYSTEM
UF94200
EFFECTIVITY Page 162
ALL
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ATA 28 FUEL SYSTEM(18)
