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December 22, 2009 A Penton Media Publication Vol. V No. 24

Misguided Maintenance

Electrical Troubleshooting Quiz

Make Procedures Helpful, Part 1

NEC in the Facility



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This twice-a-month
e-newsletter is brought to you from the publisher of EC&M magazine.

MRO Insider addresses topics such as:

  • Working with management and supervision
  • National Electrical Code® on the production floor
  • Safety procedures and programs
  • Troubleshooting techniques
  • Equipment maintenance and testing tips
  • Managing motors and generators
  • Trends in training and education
  • Managing energy use

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    The designations "National Electrical Code" and "NEC" refer to the National Electrical Code®, which is a registered trademark of the National Fire Protection Association.


    Misguided Maintenance
    Over time, maintenance programs may become seriously "out of calibration" and consequently waste precious maintenance dollars. For example, some preventive maintenance (PM) procedures get "simplified" via dropping steps while others become bloated from "step creep." If the original reason for those dropped steps still exists, the PM is now inadequate. New steps and text of a bloated PM may have seemed helpful when added, but the overall effect is a PM that gets in its own way.

    Take the following for example: A department manager complains about Line B reliability. To keep the peace, someone increases the PM frequency. However, if the cause is outside what the PM addresses (and it probably is), the increased frequency consumes resources and raises risk of human-caused failure while not fixing the problem about which the department manager complained.

    To read more on this story, visit EC&M's Web site.

    Imagine the possibilities
    The New Fluke 233 Remote Display Digital Multimeter allows you to be in two places at once. The removable magnetic display allows you to be 30 feet away from the measurement point. See how it will expand your capabilities.

    Electrical Troubleshooting Quiz
    One of the production machines cuts, bends, and stamps steel. A 50-hp motor is at the heart of this machine. Not long ago, product quality problems were traced back to motor vibration. Tightening the mounting bolts didn't stop the vibration, so the motor was replaced. Within a few days, however, the new one started vibrating as well.

    With only this information to go on, can you determine what steps you should take to troubleshoot this motor vibration problem?

    Visit EC&M's Web site to see the answer.

    Make Procedures Helpful, Part 1
    If isolated from the realities of the field, repair procedures become useless exercises in bureaucracy rather than tools for making faster, better repairs. Grade the performance of your repair procedures by observing whether people even use them. Then observe how they use them. If the repair techs treat the procedures as tools for doing the job right, you probably have good procedures. If not, your procedures need overhauling.

    One thing that frustrates procedure users is being forced to flip pages back and forth. The primary benefit of a repair procedure is it helps a person do the right steps in the right order. If the procedure doesn’t flow in a linear fashion, that doesn’t happen.

    Motors and Drives Solutions
    Motors and drives are critical elements of most machines. Visit the Fluke solution center as a resource for all your motor and drive issues. Here you will find application notes, case studies, an on-line discussion board, videos and other resources to help you deal with these complex and important issues.

    NEC in the Facility
    You can learn of Code violations in all kinds of ways, not just through formal inspections. For example, a contractor's rep tells you about a Code violation that one of the firm's electricians ran across incidentally while working at your facility.

    Such impromptu inspections give you a chance to fix things before your insurance company discovers them and issues the typically ill-timed conformance notice. They also give you a chance to fix Code violations before they turn into reportable events, such as a fatal fire. Encourage such inspections by taking them seriously.

    To read more on this story, visit EC&M's Web site.

    Hearing loss isn't inevitable. Many people maintain sharp hearing well into old age. Yet, other people exhibit profound hearing loss while barely into middle age.

    Profound hearing loss isn't a natural consequence of aging. It is, however, a natural consequence of not wearing PPE when circumstances dictate. That doesn't mean just on the job. Using a lawnmower or leaf blower without hearing protection causes hearing damage, and it can be permanent.

    If you must raise your voice to carry on a conversation, you need hearing protection. This is true even if there isn’t a "Hearing Protection Required" sign anywhere in the area. Your ears don't become magically immune to damage just because there's no sign posted. Nor does the ear-damaging noise give you a free pass simply because you're off the clock or just passing through. Once the damage happens, it's permanent.

    Nylon Liquid Tight Strain Relief Fittings
    Starting at only $0.43, offers Nylon Strain Relief Connectors at the best prices in the industry. We stock every size in NPT, Metric and Pg threading—that means you get the products you want FAST! That’s what is all about—The Right Products—The Right Price—Right Now. stocks more than 13,000 electrical, control & automotive products. — or call toll free 800-701-0975.

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