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ALTERNATE BRAKING COMPONENTS - ALTERNATE DUAL VALVE
TMULDDX09-P02 LEVEL 3
EFFECTIVITY 32-43-00 Page 5
Aug 31/00
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 32 LANDING GEAR
UF94200
EFFECTIVITY Page 213
ALL
WHEELS AND BRAKES - ALTERNATE BRAKING COMPONENTS
ALTERNATE DUAL VALVE CROSS SECTION
PEDAL RELEASED
Each pressure reducing valve includes a control piston
which operates a distribution slide valve through a
spring R1 and a rocker arm.
When the pedal is released, the yellow pressure at A
is shut off and the brake port C is connected to the
reservoir return B.
PEDAL DEPRESSED/PRESSURE INCREASING
When the pedal is pushed in, the volume of fluid moved
by the master cylinder causes the displacement of the
piston which then operates the rocker arm and the slide
valve: B is shut off and the pressure port A is
connected to the brake port C.
PEDAL DEPRESSED/PRESSURE REGULATION
In balanced state, the pressure supplied is in
proportion to the compression of the spring R1 and
consequently to the displacement of the control piston.
The pressure increases in the control line as a result
of the compression of the return springs of the control
piston.
The delivery pressure depends on the control piston
travel and the control pressure.
Maximum pressure delivered: 2537 psi (175 bars).
TMULDDX09-T03 LEVEL 3
EFFECTIVITY 32-43-00 Page 6
Aug 31/00
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 32 LANDING GEAR
UF94200
EFFECTIVITY Page 214
ALL
ALTERNATE BRAKING COMPONENTS - ALTERNATE DUAL VALVE CROSS SECTION
TMULDDX09-P03 LEVEL 3
EFFECTIVITY 32-43-00 Page 7
Aug 31/00
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 32 LANDING GEAR
UF94200
EFFECTIVITY Page 215
ALL
WHEELS AND BRAKES - ALTERNATE BRAKING COMPONENTS
MANIFOLD BRAKE ALTERNATE SERVOVALVES
IDENTIFICATION
FIN: 2615GM (LH), 2614GM (RH)
LOCATION
ZONE: 571, 671
DESCRIPTION
The manifold is equipped with two servovalves, two
hydraulic fuses and one filter on the supply line of
the manifold.
TMULDDX09-T04 LEVEL 3
EFFECTIVITY 32-43-00 Page 8
Aug 31/00
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 32 LANDING GEAR
UF94200
EFFECTIVITY Page 216
ALL
ALTERNATE BRAKING COMPONENTS - MANIFOLD BRAKE ALTERNATE SERVOVALVES
TMULDDX09-P04 LEVEL 3
EFFECTIVITY 32-43-00 Page 9
Aug 31/00
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 32 LANDING GEAR
UF94200
EFFECTIVITY Page 217
ALL
WHEELS AND BRAKES - ALTERNATE BRAKING COMPONENTS
ALTERNATE SERVOVALVES
IDENTIFICATION
FIN: 41GG (Wheel 1), 43GG (Wheel 2), 40GG (Wheel 3),
42GG (Wheel 4)
LOCATION
ZONE: 571 (Wheel 1 & 2), 671 (Wheel 3 & 4)
DESCRIPTION
Only one coil is used for anti-skid control by system
1 and 2 (pins E and F are not used).
TMULDDX09-T05 LEVEL 3
EFFECTIVITY 32-43-00 Page 10
Aug 31/00
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 32 LANDING GEAR
UF94200
EFFECTIVITY Page 218
ALL
ALTERNATE BRAKING COMPONENTS - ALTERNATE SERVOVALVES
TMULDDX09-P05 LEVEL 3
EFFECTIVITY 32-43-00 Page 11
Aug 31/00
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 32 LANDING GEAR
UF94200
EFFECTIVITY Page 219
ALL
WHEELS AND BRAKES - ALTERNATE BRAKING COMPONENTS
BRAKING PRESSURE TRANSDUCERS
IDENTIFICATION
FIN: 62GG (RH MLG), 63GG (LH MLG)
LOCATION
ZONE: 146
DESCRIPTION
Two pressure transducers measure the pressure supplied
either by the alternate brake distribution dual valve
or the parking brake pressure limiter.
The pressure transducers send the information to the
Brake Yellow Pressure Triple Indicator in the cockpit.
TMULDDX09-T06 LEVEL 3
EFFECTIVITY 32-43-00 Page 12
Aug 31/00
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 32 LANDING GEAR
UF94200
EFFECTIVITY Page 220
ALL
TMULDDX09-P06 LEVEL 3
ALTERNATE BRAKING COMPONENTS - BRAKING PRESSURE TRANSDUCERS
EFFECTIVITY 32-43-00 Page 13
Aug 31/00
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 32 LANDING GEAR
UF94200
EFFECTIVITY Page 221
ALL
WHEELS AND BRAKES - ALTERNATE BRAKING COMPONENTS
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