(2) Do a check of the oil level in the APU oil reservoir:
- if you add more than 1 liter do the low oil-level condition trouble shooting (Ref. TASK 49-00-00-810-832).
(3) Do the operational test of the APU (Ref. AMM TASK 49-00-00-710-004). NOTE : Operate the APU for min. 15 minutes under full load. This
____ makes sure that the oil temperature increases sufficiently.
4. Fault Isolation
_______________ **ON A/C 001-003, 051-062,
A. If an APU auto shutdown occurs during the operational test of the APU and the APU SHUTDOWNS report gives the maintenance message:
LOW OIL PRESSURE - OIL PR SW P14 OR OIL PUMP ASSY OR G/B PR VLV:
- replace the OIL PRESSURE SWITCH P14 (Ref. AMM TASK 49-94-14-000-001) and (Ref. AMM TASK 49-94-14-400-001).
(1) If the fault continues:
- replace the DE-OILING SOLENOID VALVE P15 (Ref. AMM TASK 49-91-49-000-001) and (Ref. AMM TASK 49-91-49-400-001).
(2) If the fault continues:
- replace the OIL PUMP ASSY (Ref. AMM TASK 49-91-45-000-001) and (Ref. AMM TASK 49-91-45-400-001).
(3) If the fault continues:
- do a continuity check of the wiring from ECB (59KD) AB/C5, C8 to the OIL PRESS SWITCH P14/1, 2 (Ref. ASM 49-61/02).
(4) 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 063-099, 401-499,
A. If an APU auto shutdown occurs during the operational test of the APU and the APU SHUTDOWNS report gives the maintenance message:
LOW OIL PRESSURE - LOP SW(8091KM)/OIL PUMP/GEARBOX PRESS VALVE
with the LRU TROUBLE SHOOT DATA menu information:
NO LRU FAULT DETECTED
Fault Code Number: 208
- replace the LOW OIL PRESSURE SWITCH (8091KM) (Ref. AMM TASK 49-94-14-000-001) and (Ref. AMM TASK 49-94-14-400-001).
(1) If the fault continues:
- replace the DE-OILING SOLENOID VALVE (8083KM) (Ref. AMM TASK 49-91-49-000-001) and (Ref. AMM TASK 49-91-49-400-001).
(2) If the fault continues:
- replace the OIL PUMP ASSY (8080KM) (Ref. AMM TASK 49-91-45-000-001) and (Ref. AMM TASK 49-91-45-400-001).
(3) If the fault continues:
- do a continuity check of the wiring from ECB (59KD) AB/C5, C8 to the LOW OIL PRESS SWITCH (8091KM) P14/1, 2 (Ref. ASM 49-61/02).
(4) 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. If no APU auto shutdown occurs during the operational test of the APU and the low oil pressure shutdown occured during the flight:
- replace the REGULATING GEARBOX VALVE (Ref. AMM TASK 49-26-53-000-001) and (Ref. AMM TASK 49-26-53-400-001).
C. If no APU auto shutdown occurs during the operational test of the APU and the low oil pressure shutdown occured when the APU was cold soaked:
NOTE : Cold Soaked Condition
____ do a print-out of the APU shutdown report <14> of the DMU (Ref. AMM TASK 31-36-00-740-010), check APU oil sump temperature 'OTA', if less than 4 deg.C (39 deg.F) the APU was in cold soaked condition.
「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 : 001-003, 051-099, 401-499, ∞∞49-00-00∞∞∞∞∞∞∞∞∞∞Page 252
Config-1 Aug 01/05 CES
- replace the DE-OILING SOLENOID VALVE (Ref. AMM TASK 49-91-49-000-001) and (Ref. AMM TASK 49-91-49-400-001).
D. Do the test given in para. 3.
TASK 49-00-00-810-819
APU AUTO SHUT DOWN - HIGH OIL TEMPERATURE, Oil Cooler -, or Cooling Fan -, or
Generator Scavenge Pump - Fault (GTCP 36-300)
1. Possible Causes
_______________
- cooling fan inlet-duct (collapsed)
- cooling fan outlet-duct
- oil cooler inlet-duct
- LUBE-PUMP OIL FILTER
- GENERATOR OIL FILTER
- OIL TEMPERATURE SWITCH P11
- OIL COOLER
- COOLING FAN
- GENERATOR SCAVENGE PUMP
- APU GENERATOR(8XS)
- ECB (59KD)
- AUXILIARY POWER UNIT (4005KM)
- OIL TEMPERATURE SWITCH (8090KM)
- OIL COOLER (8079KM)
- COOLING FAN (8055KM)
2. Job Set-up Information
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本文链接地址：A320 Trouble Shooting Manual 排故手册 机载辅助动力 1(18)
