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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