A320 Trouble Shooting Manual 排故手册 WATER/WASTE(32)

 WASTE WATER DRAIN - FAULT ISOLATION PROCEDURES
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 TASK 38-32-00-810-801
 Waste Water Drain - Failure

 1. Possible Causes
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 - washbasin filter

 - drain valve

 2. Job Set-up Information
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 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 38-32-00-100-001 Cleaning of the Waste Water Drain Lines
 AMM 38-32-00-100-002 Cleaning of the Filter-Element of the Washbasin

 Drain-Valve Assembly AMM 38-32-00-710-002 Operational Test of the Waste/Water Drain System AMM 38-32-41-000-001 Removal of the Drain Valve (Air Stop Valve) AMM 38-32-41-400-001 Installation of the Drain Valve (Air Stop Valve)
 3. Fault Confirmation
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 A. Test
 (1) Do a test of the waste water drain system (Ref. AMM TASK 38-32-00-710-002).
 4. Fault Isolation
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 A. If the water drains too slow from the washbasin:
 - Remove and clean the washbasin filter, (Ref. AMM TASK 38-32-00-100-002).
 (1) If the fault continues:

 - Replace the drain valve, (Ref. AMM TASK 38-32-41-000-001) and (Ref. AMM TASK 38-32-41-400-001).

 (2) If the fault continues:

 - Do the cleaning of the waste water lines (Ref. AMM TASK 38-32-00-100-001).
 B. Do the test as given in paragraph 3. A. and check the correct operation of the waste water drain system.
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