____ through C/B-8QT (because the FUEL QTY, PRESELECTED and ACTUAL LED displays all show 8s during the test).
(c) Operate as specified during the time the TEST switch (2QJ)is set to LTS and when the switch is released to the central normal position:
- no maintenance steps are necessary.
4. Fault Isolation
_______________
A. Procedure
(1) Do a check of the items that follow (Ref. ASM 28-42/03) and replace, if necessary:
(a) The RELAY-FQI POWER SUPPLY CHANGE-OVER (9QT).
(b) The diode between pins 32 and 31 (part of diode module 1162VD).
「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 ∞∞28-42-00∞∞∞∞∞∞∞∞∞∞Page C295
May 01/05R CES
(c) The CNTOR-DC NORM BUS 1 SWITCHING (1PC1) (Ref. AMM TASK 24-35-55-000-001) and (Ref. AMM TASK 24-35-55-400-001).
(d) The diode between pins 26 and 11 (part of diode module 80VD).
(e) The LEVER-L/G NORM CTL (6GA) (Ref. AMM TASK 32-31-11-000-001) and (Ref. AMM TASK 32-31-11-400-001).
(f) The MICROSWITCH (20QU).
(2) Use a multimeter, to do a check of the aircraft wiring (RL-9QT 28VDC supply) (Ref. ASM 28-42/03) between the:
- C/B-FUEL/FQI/CHANNEL/1 AND 2 (8QT) and the RELAY-FQI POWER SUPPLY CHANGE-OVER (9QT), terminals X1, C1 and B1.
(3) Use a multimeter, to do a check of the aircraft wiring (RL-9QT control ground) (Ref. ASM 28-42/03) between the:
- RELAY-FQI POWER SUPPLY CHANGE-OVER (9QT), terminal X2 and the diode module 1162VD, terminal 32
- diode module 1162VD, terminal 31 and the CNTOR-DC NORM BUS 1 SWITCHING connector 1PC1-B, pin 6
- CNTOR-DC NORM BUS 1 SWITCHING connector 1PC1-B, pin 8 and the diode module 80VD, terminal 26
- diode module 80VD, terminal 11 and the LEVER-L/G NORM CTL (6GA) connector 6GA-A, pin E
- LEVER-L/G NORM CTL (6GA) connector 6GA-A, pin L and the REFUEL/DEFUEL CTL PNL DOOR POSITION MICROSWITCH (20QU), terminal D
- REFUEL/DEFUEL CTL PNL DOOR POSITION MICROSWITCH (20QU), terminal F and the aircraft ground.
(4) Repair all the unserviceable wiring and connectors.
(5) Do the test given in Para. 3.B.
「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 : ALL ∞∞28-42-00∞∞∞∞∞∞∞∞∞∞Page C296
May 01/05 CES
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
TASK 28-42-00-810-873
Fuel Quantity Probe - A Malfunction in the Wing Tank when Fused Connector Plugs are Installed - An Alternative Task (procedure) for the Connector Plug Only
WARNING : OBEY THE FUEL SAFETY PROCEDURES.
_______
1. Possible Causes
_______________
- fused connector plug 4041VC-A
- fused connector plug 4042VC-A
- fused connector plug 4043VC-A
- fused connector plug 4044VC-A
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific multimeter
B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
28-42-00-810-801 Fuel Quantity Indication Computer (FQIC) 3QT AMM 05-25-70-200-004 Zonal Inspection of the False Spar Box AMM 24-41-00-861-002 Energize the Aircraft Electrical Circuits from the
External Power AMM 31-32-00-860-001 Procedure to Get Access to the SYSTEM REPORT/TEST
Menu Page
AMM 31-60-00-860-001 EIS Start Procedure
PB 101-CFDS
ASM 28-42/05
ASM 28-42/06
ASM 28-42/07
ASM 28-42/08
「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, ∞∞28-42-00∞∞∞∞∞∞∞∞∞∞Page C297 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：A320 Trouble Shooting Manual 排故手册 FUEL 燃油3(96)
