**ON A/C 001-049, 101-105, 151-199, 201-210,
Post SB 49-1062 For A/C 001-049,101-105,151-154,201-207,
A. If an APU auto shutdown occurs during the APU operation and the APU SHUTDOWN report gives the maintenance message:
LOW OIL PRESSURE
LOP SW(8091KM)/OIL PUMP (8080KM)/DEOIL (8083KM)
associated with the Fault Code Number (FCN) 208
- replace the LOW OIL PRESSURE SWITCH (8091KM) (Ref. AMM TASK 49-94-14-000-003) and (Ref. AMM TASK 49-94-14-400-003).
(1) If the fault continues:
- replace the DEOIL SOLENOID (8083KM) (Ref. AMM TASK 49-91-49-000-003) and (Ref. AMM TASK 49-91-49-400-003).
(2) If the fault continues:
- replace the OIL LUBE MODULE (8080KM) (Ref. AMM TASK 49-91-45-000-003) and (Ref. AMM TASK 49-91-45-400-003).
(3) If the fault continues:
- replace the ECB (59KD) (Ref. AMM TASK 49-61-34-000-003) and (Ref. AMM TASK 49-61-34-400-003).
B. 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:
- replace the DE-OELING SOLENOID VALVE (8083KM) (Ref. AMM TASK 49-91-49-000-003) and (Ref. AMM TASK 49-91-49-400-003).
R **ON A/C 001-049, 101-105, 107-107, 151-199, 201-210,
C. Do the test given in para. 3.
「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, 101-105, 107-107, 151-199, ∞∞49-00-81∞∞∞∞∞∞∞∞∞∞Page 251
201-210, Config-1 Aug 01/05 CES
TASK 49-00-81-810-820
APU AUTO SHUTDOWN - LOW OIL PRESSURE, Low Oil Level (131-9(A))
1. Possible Causes
_______________
- OIL LEVEL SHOWS LOW
- oil level
- damage/contamination of the electrical connector P8
- LOW OIL LEVEL SWITCH (P8)
- aircraft wiring
- ECB (59KD)
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------
REFERENCE QTY DESIGNATION
-------------------------------------------------------------------------------
No specific multimeter
B. Referenced Information
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
AMM 49-00-00-860-008 APU Start by External Power (131-9(A)) AMM 49-61-34-000-003 Removal of the Electronic Control Box (ECB) (131-9(A)) AMM 49-61-34-400-003 Installation of the Electronic Control Box (ECB)
(131-9(A)) AMM 49-90-00-600-007 Check and Replenish Oil Level (131-9(A)) AMM 49-93-16-000-003 Removal of Oil Level Switch (8087KM) (131-9(A)) AMM 49-93-16-400-003 Installation of Oil Level Switch (8087KM) (131-9(A)) ASM 49-61/01
3. Fault Confirmation
__________________
A. Read-out of ECB Trouble-Shooting Data
(1) Put the APU MASTER SW to the ON position.
(2) Get access to the APU SHUTDOWN report.
(3) Push the '>' adjacent to LRU DATA:
- the MCDU menu shows
OIL LEVEL SHOWS LOW
「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, 101-105, 107-107, 151-199, ∞∞49-00-81∞∞∞∞∞∞∞∞∞∞Page 252
201-210, Config-1 Aug 01/05 CES
(4) Start the APU and apply Bleed Air for 20 seconds, minimum (Ref. AMM TASK 49-00-00-860-008).
4. Fault Isolation
_______________
A. If an APU auto shutdown occurs during the APU operation and the APU SHUTDOWN report gives the maintenance message:
LOW OIL PRESSURE
LOW OIL LEVEL
associated with the Fault Code Number (FCN) 99
- do a check of the oil level in the APU oil reservoir (Ref. AMM TASK 49-90-00-600-007) and do a check for damage/contamination of the electrical connector P8 of the LOW OIL LEVEL switch (P8).
(1) If the electrical connector of the LOW OIL LEVEL SW (P8) is damaged/contaminated:
- do a repair/cleaning.
(2) If the electrical connector is 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 2(53)
