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Soil Vapor Extraction and Air Sparging <br /> Performance Monitoring Plan <br /> ..Stockton Yard Maintenance,Facility, Stockton , <br /> Page 3-44 <br /> d. Valve or piping to receiver is leaking or:plugged. Replace'vaive or piping if necessary. <br /> e. Water in air.receiver:.Drain air receiver. <br /> Problem: Compressor won't shut off <br /> Potential Causes and Solutions: <br /> a. Pressure switch out of adjustment or.faulty. Adjust or replace pressure switch as <br /> appropriate. <br /> Problem: Abnormal noise <br /> Potential Causes and Solutions: <br /> a. Mounting bolts loose..-Tighten bolts. <br /> b. Improper belt.tension. Adjust belt tension. <br /> c. .Worn piston or rider ring, or broken valve,parts. Replace worn or faulty equipment or parts. <br /> Problem: Motor overheats <br /> Potential Causes and.Solutions: <br /> a. High or low voltage. Measureinput voltage. <br /> b. V-belt too tight. Adjust-belt tension. <br /> c. Defective motor. Contact manufacturer or motor repair shop. <br /> Problem: Excessive belt wear <br /> Potential Causes and Solutions: <br /> a. Improper belt tension. Adjust belt tension.., <br /> b. Belt misaligned. Adjust belt tension. <br /> Problem: Compressor runs hot <br /> Potential Causes and Solutions:- <br /> a. Wrong rotation. Switch motor leads. <br /> b. Incorrect pressure setting. Adjust pressure switch. <br /> c. Faulty compressor valves. Contact manufacturer. <br /> d. Valve'or piping to receiver leaks or is plugged. Replace valve or piping if necessary. <br /> e. Intake filter clogged. Clean or replace inlet filter. <br /> DAPMP\Stockton Yard PMP.doc <br />