Machinery Lubrication May June 2011 - Welcome to ECN Digital ...

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VIEWPOINT approach is objective; it seeks explanations but does not tolerate compromises and excuses. It is fitting, then, to conclude or recap by pointing to a very simple illustration, figure 1. This illustration tries to convey that many parameters interact to cause repeat failures in pumps. Many of these are classified as hydraulic issues and much work has been done to improve pump hydraulics. However, the majority of what we chose to call elusive failure causes is linked to mechanical issues. We have become accustomed to maintenance routines that rarely question the adequacy of a vendor’s design. Failure causes have become elusive because we, users and vendors, sometimes overlook or forget (and even disregard) the laws of physics. In this article we have also alluded to process pump vendors that often merely furnish barely adequate designs. Users may unwittingly contribute to the propagation of marginally acceptable designs. They create the impression of being unwilling to pay for a superior design. Add also the possibility that vendors and pump manufacturers benefit from the sale of replacement parts and are in business to generate income. We must not forget that pump manufacturers have right-sized, down-sized and economized the way they do business. Few (if any) of these organizational re-alignments benefit the user and a preponderance of repeat failures attests to it. Some vendors and manufacturers no longer employ process pump experts and diligent craftsmen. The user-purchaser may belatedly come to realize that he has become the manufacturer’s quality control inspector. Many allow hundreds of failures before they accept this fact. When they learn the hard way, they must allocate money to ward off this eventuality by suitable pre-delivery inspections. Timely and competent up-front action by the owner-purchaser is one of the keys to failure avoidance. This up-front action includes development of detailed specifications for process pumps and for some of the key components that go into good process pumps. Once a process pump arrives in the field, it must be properly installed and maintained. To be effective, the facility must adopt work processes and procedures that harmonize with best-of-class thinking. To avoid repeat failures, pump owner-operators must deliberately push certain routine maintenance actions into the superior maintenance category. Superior maintenance efforts will lead to (or are synonymous with) pump reliability upgrading. In essence, the course of wisdom demands that we move away from “business as usual.” Before one can apply practical wisdom one must acquire knowledge and understanding. References 1. Bloch, Heinz P. and F. K.Geitner; “Machinery Failure Analysis and Troubleshooting,” 3rd Edition, Butterworth-Heinemann Publishing Company, Woburn, MA, 1997, ISBN 0-88415-662-1 2. Bloch, Heinz P., and Allan R. Budris; Pump User’s Handbook, Fairmont Press, Lilburn, GA, ISBN 0- 88173-517-5, Second Edition, 2006 3. Bloch, Heinz P.; “Pump Wisdom: Problem Solving for Operators and Specialists,” John Wiley & Sons, Hoboken, NJ, 2011, ISBN 978-1-118-04123-9 4. Barringer, Paul; “API Pump Curve Practices and Effects on Pump Life from Variability About BEP”; Weibull Analysis Course (see also Ref. 1, pg. 621) April tornado just misses manufacturing facilities in Tuscaloosa A tornado that hit the Tuscaloosa, Ala., area on April 27 is captured on camera near the BF Goodrich plant. The photo was taken by Terry Oswalt of Hunt Refining Company, located just across the street from the Goodrich facility. According to Jerry Sanders of BF Goodrich, the tornado missed the plant by just a few miles, but soon destroyed many neighborhoods and homes in the Tuscaloosa area. 30 May - June 2011 www.machinerylubrication.com Machinery Lubrication
Learn Precision Lubrication Skills for Maximizing Machine Reliability Here’s a Sample of What You’ll Learn: • How to build a safe and effective lubricant storage and handling program • How to rate filters and select the right filtration for the job • Lubricant labeling and coding systems – what works and what doesn’t • Industry’s best procedures for greasing electric motor bearings • How to get the right lubricant, in the right place, at the right time, and in the right amount COMING TO: • Cleveland, OH June 14-16, 2011 Enroll today! Visit Noria.com or call 800-597-5460 • Seattle, WA July 26-28, 2011 Take this Course Online! Get Started Now - Visit LubeIQ.com Includes Level I MLT and MLA Certification Preparation • Nashville, TN August 16-18, 2011 Presented by © Noria Corporation
Page 3 and 4: CONTENTS May - June 2011 Features 8
Page 5 and 6: Figure 1. Simple cooling fan circui
Page 8 and 9: AS I SEE IT Lubricant Consolidation
Page 10: AS I SEE IT Figure 1. Varying Suppl
Page 14: AS I SEE IT Figure 4. Lubricant Rob
Page 17 and 18: SIMPLIFY MOTOR CHANGE-OUTS and ENSU
Page 20: OIL ANALYSIS BY JEFF BILLINGTON, NO
Page 24 and 25: OIL ANALYSIS Edward Forgeron, right
Page 26 and 27: VIEWPOINT HEAD Low flow cavitation
Page 28 and 29: VIEWPOINT • Time •Temperature I
Page 30 and 31: VIEWPOINT • Reactive Environment:
Page 34 and 35: THANK YOU TO OUR SPONSORS Sponsored
Page 36 and 37: LUBE TIPS The “Lube-Tips” secti
Page 38 and 39: TEST YOUR KNOWLEDGE TThis month, Ma
Page 40 and 41: CERTIFICATION NEWS International Pa
Page 42: CERTIFICATION NEWS LABORATORY LUBRI
Page 45 and 46: Laboratory Lubricant AnalystMachine

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