- do a check for continuity of the aircraft wiring between: relay 4KD/X2 and terminal block 1176VT/4 (Ref. AWM 49-61-01).
1 If the fault continues:
_
- replace the ECB (59KD) (Ref. AMM TASK 49-61-34-000-001) and (Ref. AMM TASK 49-61-34-400-001).
R **ON A/C 001-003, 051-099, 401-499,
B. Do the test given in para. 3.
R **ON A/C 063-099, 401-499,
TASK 49-00-00-810-858
APU AUTO SHUT DOWN - IGV FAILURE, Inlet Guide Vanes Fault (GTCP36-300)
1. Possible Causes
_______________
- Air-in-Fuel
- fuel leaks
- AIR RELEASE VALVE 86QM
- INLET GUIDE-VANE ACTUATOR P21
- FUEL CONTROL UNIT P19
- ECB (59KD)
- AUXILIARY POWER UNIT (4005KM)
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
AMM 28-21-00-710-008 Operational Check of Air Release Valves to Ensure Adequate Fuel Flow Under Suction Feed Conditions AMM 28-21-41-000-001 Removal of the Low Pressure (LP) Air-Release-Valve 86QM(87QM) AMM 28-21-41-400-001 Installation of the Low Pressure (LP) Air-Release-Valve 86QM(87QM) AMM 28-22-00-710-001 Operational Test of the APU Fuel-Pump System on
Ground to Purge the Fuel Line AMM 49-00-00-710-004 Operational Test of the APU (4005KM) (GTCP 36-300) AMM 49-11-11-000-001 Removal of the Auxiliary Power Unit (APU) - 4005KM
(GTCP 36-300) AMM 49-11-11-400-001 Installation of the Auxiliary Power Unit (APU) -4005KM (GTCP 36-300) AMM 49-23-51-000-002 Removal of the Inlet Guide Vane-Actuator (8014KM) (GTCP 36-300) AMM 49-23-51-400-002 Installation of the Inlet Guide Vane-Actuator (8014KM) (GTCP 36-300) AMM 49-32-11-000-001 Removal of the Fuel Control Unit (FCU) (8022KM) (GTCP 36-300) AMM 49-32-11-400-001 Installation of the Fuel Control Unit (FCU) (8022KM) (GTCP 36-300) AMM 49-61-34-000-001 Removal of the Electronic Control Box (ECB) (59KD) (GTCP 36-300) AMM 49-61-34-400-001 Installation of the Electronic Control Box (ECB) (59KD) (GTCP 36-300)
3. Fault Confirmation
__________________
A. Check/Test
(1) Purge the APU fuel feed-line (Ref. AMM TASK 28-22-00-710-001).
(a) If you find Air-in-Fuel then purge the fuel line from the Fuel Control Unit to the IGV-Actuator (Ref. AMM TASK 49-32-11-000-001) and (Ref. AMM TASK 49-32-11-400-001).
(2) Do the operational test of the APU (Ref. AMM TASK 49-00-00-710-004).
NOTE : During the operational test of the APU, examine carefully the
____ fuel lines from the fuel control unit to the inlet guide-vane actuator:
- fuel leaks are not permitted, correct/replace as necessary.
4. Fault Isolation
_______________
A. If an APU shutdown occurs during the APU operational test and the APU SHUTDOWNS report gives the maintenance message:
IGV FAILURE - CHECK IGV ASSEMBLY / IGV ACTUATOR (8014KM)
with the LRU TROUBLE SHOOT DATA menu information:
IGV POSITION DISAGREES WITH COMMAND
Fault Code Number: 083
- do the operational test of the LH air release valves (Ref. AMM TASK 28-21-00-710-008). If the test is not correct, replace the AIR RELEASE VALVE 86QM (Ref. AMM TASK 28-21-41-000-001) and (Ref. AMM TASK 28-21-41-400-001).
- remove the IGV ACTUATOR (Ref. AMM TASK 49-23-51-000-002).
- do a push/pull test on the IGVs to check the IGV movement. . make sure that the IGV has a travel range of 1 in. (25.4 mm), . measure the force of the IGV movement.
(1) If a force less than 30 lbf (13.34 m.daN) is necessary to move the IGVs and the travel range is OK:
- replace the INLET GUIDE-VANE ACTUATOR P21 (Ref. AMM TASK 49-23-51-000-002) and (Ref. AMM TASK 49-23-51-400-002).
(a) If the fault continues:
- replace the FUEL CONTROL UNIT P19 (Ref. AMM TASK 49-32-11-000-001) and (Ref. AMM TASK 49-32-11-400-001).
(b) If the fault continues:
- replace the ECB (59KD) (Ref. AMM TASK 49-61-34-000-001) and (Ref. AMM TASK 49-61-34-400-001).
「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 : 063-099, 401-499, ∞∞49-00-00∞∞∞∞∞∞∞∞∞∞Page B200
Config-1 Aug 01/05 CES
(2) If a force more than 30 lbf (13.4 m.daN) is necessary to move the IGVs or the travel range is NOT OK: 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 机载辅助动力 1(73)
