Equipment maintenance (Water & Wastewater treatment systems, Vietnam Company)
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SUBMERSIBLE PUMP
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| ■ | Take out the rubbish from pump housing, check the impeller for smooth rotation. | |
| ■ | Check the working status of pump: pressure, flow, vibration, noise… Adjust or replace details: bearing, joint, axle, impeller… if necessary. | |
| Motor maintenance: |
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Check the working status of motor, electrical wire by measurement: voltage, current, resistance, insulation, water contact rod… Adjust or replace details or even rewind motor if necessary. |
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SLUDGE SCREW PUMP
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Mechanics maintenance: |
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Check the screw for scratch, obstruction, adjust if necessary. |
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Check the working status of pump: pressure, flow, vibration, noise… Adjust or replace details: bearing, joint, axle, impeller… if necessary. |
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Check the axle connector for looseness, broken… adjust, replace the rubber buffer if necessary. |
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| Motor maintenance: | ![]() |
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| ■ | Check the working status of motor, electrical wire by measurement: voltage, current, resistance, insulation, water contact rod… Adjust or replace details or even rewind motor if necessary.
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AIR BLOWER
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Technology maintenance: |
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Taking out the air filter, use high pressure air to blow out the dust and re-mount air filter. |
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Replace with new air filter if the old one can not be recovered. |
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Mechanics maintenance:
| ■ | Check the working status of machine: pressure, flow-rate, vibration, noise… Adjust or replace details: bearing, joint, axle, impeller… if necessary. |
| ■ | Check the tautness of belt, adjust if loosened. |
| ■ | Change with new belt if the old one broken or get worse. |
| ■ | Check the status of joint, seal. Fill oil in additional or change with new oil if necessary (normal frequency: 1 time/3 months). |
| ■ | Check the safety valve, adjust or replace if necessary. |
| ■ | Check the working status of pressure gauges, adjust or replace if necessary. |
Motor maintenance:
| ■ | Check the working status of motor, electrical wire by measurement: voltage, current, resistance, insulation, water contact rod… Adjust or replace details or even rewind motor if necessary. |
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CHEMICAL DOSING PUMP
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Technology maintenance: |
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Check & clean the filter set, suction hose of pump. |
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Check the flow-rate of pump, adjust for suitability if necessary. |
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Mechanics maintenance: |
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Check the working status of pump: pressure, flow, vibration, noise… Adjust or replace details: bearing, joint, axle, impeller… if necessary. |
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■ Check the joint, add more oil or replace if necessary (period: 1 time/3 months).
■ Check non-return valves of pump for obstruction, dirtiness… clearance & cleaning if necessary.
You can see more informations at video below.












