TASK 49-00-00-810-871
Visual Oil-Filter Clogging-Indicator popped out (GTCP 36-300)
1. Possible Causes_______________
- GEN-APU (8XS)
- AUXILIARY POWER UNIT (4005KM)
2. Job Set-up Information______________________
A. Referenced Information
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REFERENCE DESIGNATION
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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 49-00-00-710-004 Operational Test of the APU (4005KM) (GTCP 36-300)
AMM 49-00-00-860-003 APU Start by External Power (GTCP 36-300)
AMM 49-00-00-860-004 APU Shutdown by External Power (GTCP 36-300)
AMM 49-11-00-000-002 Removal of the Generator Substitution Kit (GTCP 36-300)
AMM 49-11-00-400-002 Installation of the Generator Substitution Kit (Flight without Generator) (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 49-90-00-600-002 Oil Change (Drain Method) (GTCP 36-300)
AMM 49-91-41-200-001 Remove and discard Alternator Scavenge Filter Element (8069KM) (GTCP 36-300)
AMM 49-91-42-200-001 Check APU Magnetic Chip Detector (MCD) (GTCP 36-300)
AMM 49-91-45-200-002 Remove and discard Lube Filter Element (GTCP 36-300)
3. Fault Confirmation__________________
A. Check/Test
(1) Do the operational test of the APU (Ref. AMM TASK 49-00-00-710-004).
(2) Do a visual check of the differential pressure indicators of the APU generator scavenge filter and the APU lubrication filter.
4. Fault Isolation
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A. If the differential pressure indicator confirms that the APU generator scavenge filter and/or the APU lubrication filter is/are clogged:
- remove the oil filter elements (Ref. AMM TASK 49-91-41-200-001) and (Ref. AMM TASK 49-91-45-200-002),
- do an inspection of the removed oil filter elements (Ref. AMM TASK 49-91-41-200-001) and (Ref. AMM TASK 49-91-45-200-002),
- do an inspection of the magnetic drain plug (Ref. AMM TASK 49-91-42-200-001).
- install the oil filter elements (Ref. AMM TASK 49-91-41-200-001) and (Ref. AMM TASK 49-91-45-200-002),
(1) If the inspections show that the filter elements has caught: .copper wire particles, .nonmetallic flakes, .phenolic resin.
- remove the GEN-APU (8XS) (Ref. AMM TASK 24-23-51-000-001) and install a generator cover plate (Ref. AMM TASK 49-11-00-400-002),
- change the APU oil (Ref. AMM TASK 49-90-00-600-002),
- start and operate the APU for 15 minutes (Ref. AMM TASK 49-00-00-860-003),
- shutdown the APU (Ref. AMM TASK 49-00-00-860-004),
- remove the oil filter elements (Ref. AMM TASK 49-91-41-200-001) and (Ref. AMM TASK 49-91-45-200-002),
- do an inspection of the removed oil filter elements (Ref. AMM TASK 49-91-41-200-001) and (Ref. AMM TASK 49-91-45-200-002),
- do an inspection of the magnetic drain plug (Ref. AMM TASK 49-91-42-200-001).
(a) If you do not find contamination after 15 min. APU operation:
- remove the generator cover plate (Ref. AMM TASK 49-11-00-000-002),
- install a new GEN-APU (8XS) (Ref. AMM TASK 24-23-51-400-001)
- install the serviceable oil filter elements (Ref. AMM TASK 49-91-41-200-001) and (Ref. AMM TASK 49-91-45-200-002),
(b) If you find contamination after 15 min. APU operation:
- install the oil filter elements (Ref. AMM TASK 49-91-41-200-001) and (Ref. AMM TASK 49-91-45-200-002),
- replace the AUXILIARY POWER UNIT (4005KM) (Ref. AMM TASK 49-11-11-000-001) and (Ref. AMM TASK 49-11-11-400-001),
(c) If the inspections show that the filter elements has caught brass or silver-plated steel particles:
- replace the AUXILIARY POWER UNIT (4005KM) (Ref. AMM TASK 49-11-11-000-001) and (Ref. AMM TASK 49-11-11-400-001).
B. Do the test given in para. 3.
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本文鏈接地址：A320 Trouble Shooting Manual 排故手冊 機載輔助動力 1(83)
