- do a visual inspection and make sure that you do not find damage and/or unwanted material in the exhaust system and/or on the 2nd stage turbine trailing edges (Ref. AMM TASK 49-20-00-290-001).
- turn manually the drive shaft of the cooling fan assembly and make sure that: . you can turn the manual drive shaft of the cooling fan freely, . the APU rotors, bearings and gears do not rub, . the APU rotors, bearings and gears do not make unsual noise.
「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 : 106-106, 108-149, 211-299, 301-399, ∞∞49-00-00∞∞∞∞∞∞∞∞∞∞Page 231
Config-2 Aug 01/05 CES
(a) If you find that the drag of the APU rotors, bearings and gears is too much, they do rub or they make unsual noise, replace the AUXILIARY POWER UNIT (4005KM) (Ref. AMM TASK 49-11-11-000-003) and (Ref. AMM TASK 49-11-11-400-003).
(2) Do the operational test of the APU (Ref. AMM TASK 49-00-00-710-008).
4. Fault Isolation
_______________
A. If the APU Last Leg Report gives the maintenance message:
FUEL CTL UNIT (8022KM):
Fault Code Number: 098
NOTE : The APU SHUTDOWNS report gives the maintenance message:
____
OVERTEMPERATURE - FUEL CTL UNIT (8022KM)
APU Auto Shut Down Fault Code Number: 098
(1) If the fault continues:
- replace the FUEL CONTROL UNIT (8022KM) (Ref. AMM TASK 49-32-11-000-002) and (Ref. AMM TASK 49-32-11-400-002).
(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).
1 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).
B. Do the test given in para. 3.
TASK 49-00-00-810-895
APU AUTO SHUT DOWN - LOW OIL-PRESSURE (APS 3200)
1. Possible Causes
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- oil level in the APU oil reservoir is not sufficient
- leaks on the oil system components or oil lines
- LUBE-PUMP OIL FILTER (8076KM)
- wiring
- OIL PRESSURE SWITCH (8091KM)
- DE-OILING SOLENOID VALVE (8083KM)
- OIL PRESSURE-RELIEF VALVE
- APU GENERATOR (8XS)
- ECB (59KD)
- AUXILIARY POWER UNIT (4005KM)
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 24-23-51-000-001 Removal of the APU Generator 8XS AMM 24-23-51-400-001 Installation of the APU Generator 8XS AMM 31-32-00-860-001 Procedure to Get Access to the SYSTEM REPORT/TEST
Menu Page AMM 49-00-00-710-008 Operational Test of the APU (APS 3200) AMM 49-11-11-000-003 Removal of the Power Plant (APU) (APS 3200) AMM 49-11-11-400-003 Installation of the Power Plant (APU) (APS 3200) AMM 49-61-34-000-002 Removal of the Electronic Control Box (ECB) (59KD)
(APS 3200) AMM 49-61-34-400-002 Installation of the Electronic Control Box (ECB)
(59KD) (APS 3200) AMM 49-90-00-600-004 Check Oil Level and Replenish (APS 3200) AMM 49-91-00-210-002 Visual Inspection of the Lube Pump Filter (8076KM)
and Generator-Scavenge Filter (8069KM)
Differential-Pressure Indicator Position (APS 3200) AMM 49-91-43-000-002 Removal of the Pressure Relief Valve (APS 3200) AMM 49-91-43-400-002 Installation of the Pressure Relief Valve (APS 3200) AMM 49-91-49-000-002 Removal of the De-oiling Solenoid Valve (8083KM) (APS
3200) AMM 49-91-49-400-002 Installation of the De-oiling Solenoid Valve (8083KM) (APS 3200) AMM 49-94-14-000-002 Removal of the Oil Pressure Switch (8091KM) (APS 3200) AMM 49-94-14-400-002 Installation of the Oil Pressure Switch (8091KM) (APS 3200) ASM 49-61/02
「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 : 106-106, 108-149, 211-299, 301-399, ∞∞49-00-00∞∞∞∞∞∞∞∞∞∞Page 233
Config-2 Aug 01/05 CES
3. Fault Confirmation
__________________
A. Do the subsequent checks and the operational test of the APU.
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