4. Fault Isolation
_______________
A. Maintenance Action for Magnetic Drain Plug metal chip contamination
(1) If you find a small quantity of metal particles not larger than 1.50 mm (0.0590 in.) in any shape:
- in this permitted case install the magnetic element in the drain plug (Ref. AMM TASK 49-91-42-400-002).
(2) If you find a large quantity of metal particles smaller than 1.50 mm (0.0590 in.) , do the following steps:
WARNING : OBEY THE MANUFACTURER'S INSTRUCTIONS WHEN YOU USE
_______ THIS/THESE MATERIAL/S. USE PROTECTIVE CLOTHING, RUBBER GLOVES, GOGGLES AND A MASK.
WARNING : MAKE SURE THAT THERE IS A GOOD FLOW OF AIR THROUGH THE WORK
_______ AREA WHEN YOU USE SPECIAL MATERIALS. IF YOU GET ONE OF THESE MATERIALS ON YOUR SKIN, IN YOUR MOUTH OR IN YOUR EYES : -FLUSH IT AWAY WITH A FLOW OF CLEAN WATER FOR BETWEEN 10 AND 15 MINUTES. -GET IMMEDIATE MEDICAL AID IF IRRITATION OCCURS. DO NOT BREATHE THE FUMES FROM THE MATERIAL. DO NOT SMOKE WHEN YOU USE THE MATERIAL. DO NOT USE THE MATERIAL NEAR A FLAME, SPARKS OR SOURCES OF HEAT. THESE MATERIALS ARE DANGEROUS : THEY ARE POISONOUS, FLAMMABLE AND SKIN IRRITANTS.
CAUTION : DO NOT CLEAN THE OIL FILTER ELEMENTS. YOU MUST DISCARD THEM
_______ AND INSTALL NEW FILTER ELEMENTS. IF YOU CLEAN THE OIL FILTER ELEMENTS, YOU CAN CAUSE DAMAGE TO THEM. THIS WILL CAUSE DAMAGE TO THE APU.
(a) Clean the magnetic element in the CLEANING AGENTS (Material No. 11-002).
(b) Dry the magnetic element with a clean, lint-free cloth.
(c) Replace the oil filters (Ref. AMM TASK 49-91-41-920-002) and (Ref. AMM TASK 49-91-41-920-001).
(d) Install the magnetic element (Ref. AMM TASK 49-91-42-400-002).
(e) Do the servicing to change the oil in the APU oil reservoir (Ref. AMM TASK 49-90-00-600-005).
(f) Start the APU (Ref. AMM TASK 49-00-00-860-005) and operate it for 15 minutes.
(g) Do the APU shutdown procedure (Ref. AMM TASK 49-00-00-860-006).
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(h) Remove the magnetic element (Ref. AMM TASK 49-91-42-000-002).
(i) Remove the oil filters for inspection (Ref. AMM TASK 49-91-41-920-001) and (Ref. AMM TASK 49-91-41-920-002).
(j) Inspect the magnetic element and the oil filter elements under a source of white light for metal particles.
- if you find any metal particles on the magnetic element or the oil filter elements:
1 Replace the APU (internal wear) (Ref. AMM TASK 49-11-11-000-
_ 003) and (Ref. AMM TASK 49-11-11-400-003)
(3) If you find metal particles larger than 1.50 mm (0.0590 in.):
- replace the APU (internal wear) (Ref. AMM TASK 49-11-11-000-003) and (Ref. AMM TASK 49-11-11-400-003).
B. Maintenance Action for Speed Sensor(s) metal chip contamination
(1) If you find a small quantity of metal particles do the following steps:
WARNING : OBEY THE MANUFACTURER'S INSTRUCTIONS WHEN YOU USE
_______ THIS/THESE MATERIAL/S. USE PROTECTIVE CLOTHING, RUBBER GLOVES, GOGGLES AND A MASK.
WARNING : MAKE SURE THAT THERE IS A GOOD FLOW OF AIR THROUGH THE WORK
_______ AREA WHEN YOU USE SPECIAL MATERIALS. IF YOU GET ONE OF THESE MATERIALS ON YOUR SKIN, IN YOUR MOUTH OR IN YOUR EYES : -FLUSH IT AWAY WITH A FLOW OF CLEAN WATER FOR BETWEEN 10 AND 15 MINUTES. -GET IMMEDIATE MEDICAL AID IF IRRITATION OCCURS. DO NOT BREATHE THE FUMES FROM THE MATERIAL. DO NOT SMOKE WHEN YOU USE THE MATERIAL. DO NOT USE THE MATERIAL NEAR A FLAME, SPARKS OR SOURCES OF HEAT. THESE MATERIALS ARE DANGEROUS : THEY ARE POISONOUS, FLAMMABLE AND SKIN IRRITANTS.
CAUTION : DO NOT CLEAN THE OIL FILTER ELEMENTS. YOU MUST DISCARD THEM
_______ AND INSTALL NEW FILTER ELEMENTS. IF YOU CLEAN THE OIL FILTER ELEMENTS, YOU CAN CAUSE DAMAGE TO THEM. THIS WILL CAUSE DAMAGE TO THE APU.
(a) Clean the speed sensor(s) (8060KM1), (8060KM2) in the CLEANING AGENTS (Material No. 11-002).
(b) Dry the speed sensor(s) (8060KM1), (8060KM2) with a clean, lint-free cloth.
「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 A216
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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(123)
