(9) Do the test given in Para 3.A.
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1R EFF : 001-049, 051-099, 101-149, 151-199, ∞∞28-15-00∞∞∞∞∞∞∞∞∞∞Page 242
201-299, 401-499, Aug 01/05 CES
TASK 28-15-00-810-813
Intercell Transfer Valves (Left And Right Forward) - Fail To Close (Delatch)
WARNING : OBEY THE FUEL SAFETY PROCEDURES.
_______
WARNING : WHEN YOU DO WORK ON THE FUEL SYSTEM WIRING, YOU MUST USE TEST
_______ EQUIPMENT THAT IS APPROVED (REFER TO INTERNATIONAL OR NATIONAL SPECIFICATIONS FOR INTRINSICALLY SAFE TEST EQUIPMENT, E.G. EN50-020, UL913 OR EQUIVALENT). TEST EQUIPMENT THAT IS NOT APPROVED CAN CAUSE FIRE OR AN EXPLOSION.
1. Possible Causes
_______________
- FQIC (3QT)
- aircraft wiring
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
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REFERENCE QTY DESIGNATION
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No specific multimeter
B. Referenced Information
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REFERENCE DESIGNATION
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AMM 28-42-34-000-001 Removal of the Fuel Quantity-Indicating Computer (FQIC) (3QT) AMM 28-42-34-400-001 Installation of the Fuel Quantity-Indicating Computer (FQIC) (3QT) ASM 28-15/02
3. Fault Confirmation
__________________
A. Connect a multimeter to the RELAY-L OR R FWD XFR VALVE OPEN LATCH (14QP) as follows:
- the multimeter positive/high input to the relay terminal Z
- the multimeter negative/low input to a suitable aircraft ground.
(1) Do the Power Up FLSS BITE test and monitor:
- the XFR Valve movement on the ECAM, FUEL System Display (lower ECAM DU).
- the multimeter reading.
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1R EFF : 001-049, 051-099, 101-149, 151-199, ∞∞28-15-00∞∞∞∞∞∞∞∞∞∞Page 243
201-299, 401-499, Aug 01/05 CES
NOTE : If the aircraft is already supplied with electrical power,
____ reset the FQIC. (Pull, then push the C/Bs M27 on 121VU and A13 on 49VU). The FLSS BITE test is carried out once a short time after power up.
NOTE : The intercell transfer valves (ICTVs) are motor driven and the
____ power for these circuits is derived from the main power. The ICTVs are immobilized on battery power.
4. Fault Isolation
_______________
A. If while the FLSS BITE test is in progress, the voltage reading on the multimeter changes from:
- 0VDC to 28VDC after an initial warm up period
- 28VDC to 0VDC on completion of the Transfer Valve movement. No maintenance steps are necessary.
(1) If the voltage remains at 0VDC or 28VDC, replace the FQIC (3QT), (Ref. AMM TASK 28-42-34-000-001) and (Ref. AMM TASK 28-42-34-400-001).
(2) Do the test given in Para 3.A.
(3) If the fault continues do a wiring check (Ref. ASM 28-15/02) of the aircraft wiring between the terminal Z, RELAY-L OR R FWD XFR VALVE OPEN LATCH (14QP) and the pin 9E, connector AB, FQIC (3QT).
(4) Repair all the unserviceable wiring and connectors.
(5) Do the test given in Para 3.A.
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1R EFF : 001-049, 051-099, 101-149, 151-199, ∞∞28-15-00∞∞∞∞∞∞∞∞∞∞Page 244
201-299, 401-499, Aug 01/05 CES
TASK 28-15-00-810-814
Intercell Transfer Valves (Left And Right Rear) - Fail To Close (Delatch)
WARNING : OBEY THE FUEL SAFETY PROCEDURES.
_______
WARNING : WHEN YOU DO WORK ON THE FUEL SYSTEM WIRING, YOU MUST USE TEST
_______ EQUIPMENT THAT IS APPROVED (REFER TO INTERNATIONAL OR NATIONAL SPECIFICATIONS FOR INTRINSICALLY SAFE TEST EQUIPMENT, E.G. EN50-020, UL913 OR EQUIVALENT). TEST EQUIPMENT THAT IS NOT APPROVED CAN CAUSE FIRE OR AN EXPLOSION.
1. Possible Causes
_______________
- FQIC (3QT)
- aircraft wiring
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
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