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Aeration Tank <br /> 1. Visually check aeration system for <br /> even air distribution, with no X X <br /> dead spots. <br /> 2. Raise and clean rags from diffusers. X X <br /> 3. Check oil level in mechanical aerator <br /> Gear cases. X X <br /> 4. Check oil level in blower gear cases. X <br /> 5. Check for air leaks around base and <br /> fittings of blower. X X <br /> 6. Check & Inspect blower belts for wear X <br /> and tension. <br /> 7. Check blower motor and bearings for X <br /> excessive heat. <br /> 8. Check aeration system for unusual X <br /> noises or vibration <br /> Clarifier <br /> 1. Scrape sides and sloping bottom of X <br /> Clarifier with squeegee. <br /> 2. Check to see if sludge collection arm X <br /> is turning <br /> 3. Remove any floating material on top X <br /> of clarifier <br /> 4. Verify that scum skimmer is X <br /> removing all scum in clarifier <br /> 6. Scrub launders and weirs with brush. X <br /> Pumps and Motors <br /> 1. Check for blockages in RAS return X X <br /> pump lines. <br /> 2. Check pumps for clogging or near X <br /> clogging condition. reduced flow <br /> 3. Clean screen at intake of suction X <br /> piping of pumps <br /> 4. Lubricate pump bearings. I X <br /> 5. Check pump bearings temperature. X <br /> 6. Drain pump lubricants, wash out oil X <br /> well and bearinn s with kerosene <br /> 7. Check pump bearings for wear. X <br /> 8. Check alignment of pump and motor X <br /> flange, with straight edge. <br /> 9. Check motors for heating. X <br /> 10. Replace pump packing. _ _-- -- X <br /> 11. Check pump shaft sleeves. X <br /> 12. Replace pump shaft sleeves. _ X <br /> 13. Examine pump wearing rings <br /> (Manufacturer should specify what X <br /> is excessive). <br /> 14. Clean water seal piing: __...._......._..__._ X <br /> 15. Inspect foot valves and check X <br /> valves for blockage. <br /> 5 pcs/o&m-genO&A9.sched.w/ q-l-d <br />