9. Equipment Maintenance Objectives

Following completion of Chapter 9, students should be able to:

  1. Explain the serious consequences that could occur when inexperienced, unqualified, or unauthorized persons attempt to troubleshoot or repair electrical panels, controls, circuits, wiring, or equipment.
  2. Communicate with electricians by indicating possible causes of problems in electrical panels, controls, circuits, wiring, and motors.
  3. Properly select and use the following pieces of equipment (if qualified and authorized):
    1. Multimeters
    2. Ammeters
    3. Meggers
    4. Ohmmeters
  4. Describe how a pump is put together.
  5. Discuss the application or use of different types of pumps.
  6. Maintain the various types of pumps.
  7. Operate and maintain a compressor.
  8. Develop and conduct an equipment lubrication program.

Effective equipment maintenance is very important to the successful operation of a wastewater collection system. Pumps in lift stations, as well as pumps used in the field and pumps on high-velocity cleaners, must be included in a preventive maintenance program. Other equipment in lift stations and used by field crews must be maintained to keep the equipment in operating condition and to ensure that the equipment does not wear out too fast.

Maintenance of electrical equipment requires extra caution and special training and skills. Do not attempt to install, troubleshoot, maintain, repair, or replace electrical equipment, panels, controls, wiring, or circuits unless you:

  1. Know what you are doing
  2. Are qualified
  3. Are authorized

All students, instructors, and experienced operators must realize the hazards involved when working with or near electricity and never take a chance. Special procedures are outlined for troubleshooting. This chapter contains tables and lists on how to identify problems, how to look for possible causes of problems, and how to remedy or solve the problem once it has been identified. Topics covered include electrical equipment maintenance, pumps, compressors, and equipment lubrication.

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