(c) Do the test given in Para. 3.A.
(6) At the panel 85VU:
- remove the EIU-1 (1KS1) (Ref. AMM TASK 73-25-34-000-040).
(7) Apply 28VDC to the EIU-1 (1KS1) rack connector AB, pin 1C.
(8) With a multimeter, do a test to make sure that 28VDC is available at the RELAY 51QA(52QA) base pin C1.
NOTE : Each TDO relay's control 28VDC input to pin C1 comes from
____ either EIU-1 or EIU-2 or both and signals a Main Engine Start (MES).
(9) Install the EIU-1 (1KS1) (Ref. AMM TASK 73-25-34-400-040).
(10) Remove the EIU-2 (1KS2) (Ref. AMM TASK 73-25-34-000-040).
(11) Apply 28VDC to the EIU-2 (1KS2) rack connector AB, pin 1C.
(12) With a multimeter, do a test to make sure that 28VDC is available at the RELAY 51QA(52QA) base pin C1.
(13) If 28VDC (simulated MES) was not available at RELAY 51QA(52QA) base pin C1 (step (8) and/or step (12)):
(a) Do a check of the:
- aircraft wiring between the EIU-1 (1KS1) rack connector AB, pin 1C and the RELAY 51QA(52QA), base pin 1C (Ref. AWM 28-21-05) (Ref. AWM 28-21-06) (Ref. AWM 28-21-07) and (Ref. AWM 73-25-05)
- aircraft wiring between the EIU-2 (1KS2) rack connector AB, pin 1C and the terminal block 1853VT, terminal 20U (Ref. AWM 73-25-06)
- aircraft wiring between the ECB (59KD) rack connector AB, pin 5E and the terminal block 1853VT, terminal 20T (Ref. AWM 49-61-03).
「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, ∞∞28-21-00∞∞∞∞∞∞∞∞∞∞Page B229
201-299, 401-499, Aug 01/05 CES
(b) Repair all the unserviceable wiring and connectors.
(c) Do the test given in Para. 3.A.
(14) If the 28VDC is as specified in steps (4), (8) and (12) and/or if the relay(s) show(s) signs of damage or burning in step (2):
- replace the RELAY-CTR TK PUMPS 1 CTL (51QA) (RELAY-CTR TK PUMPS 2 CTL (52QA)).
(15) If the RELAY 51QA(52QA) base shows any signs of damage or burning in step (2):
- replace the RELAY 51QA(52QA) base.
(16) Do the test given in Para. 3.A.
(17) If the fault continues during a main engine start:
- trouble-shoot the EIU-1 (1KS1) (EIU-2 (1KS2)) and interfaces (Ref. Chap. 73-25-00).
「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, ∞∞28-21-00∞∞∞∞∞∞∞∞∞∞Page B230
201-299, 401-499, Aug 01/05 CES
R **ON A/C ALL
TASK 28-21-00-810-842
Adjacent Wing Tank Fuel Pump, Pressure-Switch Isolating Check-Valve Failure
WARNING : OBEY THE FUEL SAFETY PROCEDURES.
_______
1. Possible Causes
_______________
- CHECK VALVE-FUEL PUMP, L WING TK OUTR (33QM)
- CHECK VALVE-FUEL PUMP, L WING TK INR (34QM)
- CHECK VALVE-FUEL PUMP, R WING TK INR (35QM)
- CHECK VALVE-FUEL PUMP, R WING TK OUTR (36QM) R - CHECK VALVE (224QM) R - CHECK VALVE (222QM) R - CHECK VALVE (223QM) R - CHECK VALVE (225QM)
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
R AMM 28-16-42-000-002 Removal of the Check Valve 222QM(223QM), 224QM(225QM)
R AMM 28-16-42-400-002 Installation of the Check Valves 222QM(223QM),
R 224QM(225QM) AMM 28-21-00-710-001 Operational Test of the Wing-Tank Fuel Control
R AMM 28-21-00-710-002 Operational Check of Wing Tank Pump Pressure Sense
R Line Check Valves AMM 28-21-43-000-001 Removal of the Fuel-Pump Check-Valve 33QM(36QM), 34QM(35QM) AMM 28-21-43-400-001 Installation of the Fuel-Pump Check-Valve 33QM(36QM), 34QM(35QM)
3. Fault Confirmation
__________________
A. Do the Operational Test of the Wing-Tank Fuel Control for the related Wing Tank Fuel-Pump (Ref. AMM TASK 28-21-00-710-001).
NOTE : The above test is called for as it is important to make sure that
____ the related fuel-pump pressure switch and the low pressure indications are correct before you start more steps.
(1) If any failures are detected during the above test:
- go to P. Block 101, ECAM/LOCAL for the related Task number.
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞28-21-00∞∞∞∞∞∞∞∞∞∞Page B231
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本文鏈接地址：A320 Trouble Shooting Manual 排故手冊 FUEL 燃油2(15)
