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Config-2 Aug 01/05 CES -------------------------------------------------------------------------------
REFERENCE DESIGNATION
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AMM 49-91-51-400-002 Installation of the Oil-Sump Temperature Sensor
(8084KM) (APS 3200)
ASM 49-61/02
3. Fault Confirmation
__________________
A. Do the subsequent checks and the operational test of the APU.
(1) Do a check of the oil level via the MCDU SYSTEM/REPORT TEST page APU: .push the APU MASTER SW p/bsw to ON, .select the SYSTEM/REPORT TEST page APU (Ref. AMM TASK 31-32-00-860-001), .select the APU DATA/OIL page.
- if the oil level in the APU oil reservoir is not sufficient, do the oil servicing (Ref. AMM TASK 49-90-00-600-004).
(2) Do a check and make sure that the cooling fan inlet duct, the oil cooler inlet duct and the oil cooler outlet duct are correctly attached and in the correct condition.
- correct/replace as necessary.
(3) Remove the oil-cooler inlet duct and do a check if the air passages of the oil cooler are blocked.
- If the air passages are blocked, do the oil cooler cleaning procedure (Ref. AMM TASK 49-91-44-100-002) or replace the oil cooler (Ref. AMM TASK 49-91-44-000-003) and (Ref. AMM TASK 49-91-44-400-003).
(4) Carefully examine the APU externally:
- make sure that you do not find leaks on the oil system components or oil lines:
(a) If you find external oil leaks:
- correct/replace as necessary.
(5) Remove the cooling-fan inlet duct (Ref. AMM TASK 49-52-53-000-001) and turn the manual drive shaft of the cooling fan assy. Make sure that you can turn the manual drive shaft freely.
(6) Do the operational test of the APU (Ref. AMM TASK 49-00-00-710-008).
NOTE : Operate the APU for 10 minutes minimum under full load. This
____ makes sure that the oil temperature increases sufficiently.
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Config-2 Aug 01/05 CES
4. Fault Isolation
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A. Maintenance Action
(1) If the APU Last Leg Report gives the maintenance message:
CHECK OIL COOLER ASSY (8079KM): Fault Code Number: 046
NOTE : The APU SHUTDOWNS report gives the maintenance message:
____ HIGH OIL TEMPERATURE - CHECK OIL COOLER ASSY (8079KM) APU Auto Shut Down Fault Code Number: 046
- replace the OIL COOLER (8079KM) (Ref. AMM TASK 49-91-44-000-003)and (Ref. AMM TASK 49-91-44-400-003).
(a) If the fault continues:
- do a check and make sure that the LUBE-PUMP OIL FILTER (8076KM) and the GENERATOR OIL FILTER (8069KM) are serviceable (Ref. AMM TASK 49-91-00-210-002).
1_ If the fault continues:
- replace the GEN-APU (8XS) (Ref. AMM TASK 24-23-51-000-001)
and (Ref. AMM TASK 24-23-51-400-001).
2 If the fault continues:
_
- replace the COOLING FAN ASSEMBLY (8055KM) (Ref. AMM TASK 49-52-53-000-001) and (Ref. AMM TASK 49-52-53-400-001).
a If the fault continues:
_
- replace the ECB (59KD) (Ref. AMM TASK 49-61-34-000-002) and (Ref. AMM TASK 49-61-34-400-002).
b If the fault continues:
_
- replace the AUXILIARY POWER UNIT (4005KM) (Ref. AMM TASK 49-11-11-000-003) and (Ref. AMM TASK 49-11-11-400-003).
(2) If the APU Last Leg Report gives the maintenance message:
CHECK OIL COOLER ASSY (8079KM):
Fault Code Number: 046
Additionally:
Fault Code Number: 012 or 013
NOTE : FCN 012, 013 on the Class 3 Faults Page
____
NOTE : The APU SHUTDOWNS report gives the maintenance message:
____ HIGH OIL TEMPERATURE - CHECK OIL COOLER ASSY (8079KM) APU Auto Shut Down Fault Code Number: 046
- do a check and repair the wiring between the ECB (59KD) AB-C2,D2 and the OIL TEMP SENSOR (8084KM) P25/1,2,3 (Ref. ASM 49-61/02).
(a) If the fault continues:
- replace the OIL TEMP SENSOR (8084KM) (Ref. AMM TASK 49-91-51-000-002) and (Ref. AMM TASK 49-91-51-400-002).
1 If the fault continues:
_
- replace the ECB (59KD) (Ref. AMM TASK 49-61-34-000-002) and (Ref. AMM TASK 49-61-34-400-002). 中國航空網 www.k6050.com 航空翻譯 www.aviation.cn 本文鏈接地址：A320 Trouble Shooting Manual 排故手冊 機載輔助動力 1(96)
