Aggregates Manager

September 2013

Aggregates Manager Digital Magazine

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Page 23 of 86

The different colors in this thermal image indicate different temperature readings, with purple areas being the coolest and red areas being the hottest. ery for electrical systems and mechanical equipment. Some examples of systems to consider for infrared thermography are breaker panels, overhead lines, switches, and motors. Other overarching factors when determining whether or not to monitor a certain piece of equipment may include safe access, criticality, machinehours, and repair time should a catastroph- ic failure occur. It is also helpful to rule out equipment that you don't need to monitor. For example, let's say you have a 10-horsepower motor installed on a small tramp metal conveyor that only operates three or four times a day for a maximum of five minutes each time. You probably have a spare 10-horsepower motor on the shelf, and change-out time would only be 30 to 40 minutes. This kind of motor probably doesn't need to be on your vibration analysis or IR audit program. The next step is to determine the schedule with which you want to monitor your equipment. Your first audit will serve as a baseline. After that, the frequency with which you conduct another full audit depends upon your operation's unique situation. A minimum frequency of twice per year is generally recommended for vibration analysis and infra- red thermography audits. To develop a solid baseline of metrics, I recommend a full audit every other month for the first six months of your new program. Once you have a chance to do some trend analysis on your data and compare it with your baseline, you may be able to decrease the frequency of your predictive maintenance audits if the number of faults you find is also decreasing. Additionally, the overall condition of your equipment will help determine the frequency of your audits. Factors to determine the intervals for oil sample analysis include: whether or not the equipment is critical, the environment in which the equipment is working, and machine hours. A good starting point for your program would be to follow the manufacturer's recommended oil change and sampling guidelines. Once you start to build your data history, you will be able to see what IDLERS | PULLEYS | IMPACT BEDS | ACCESSORIES QUALITY. SERVICE. DEPENDABILITY. With a manufacturing lead time of just 5 days, Luff Industries is able to provide fast delivery, minimizing downtime while reducing operating costs for your company. Our in-house team of engineers can assist with modification and design and all product is backed by a full two-year warranty. Product conforms to CEMA standards and passes through a full ISO 9001 quality inspection, before becoming a key component in your conveyor system. Luff Industries Ltd. TF: 1.888.349.LUFF (5833) w: e: CONVEYING PERFORMANCE Text INFO to 205-289-3782 or visit 22 Aggregates Manager Setpember 2013 Luff_AGRM0413pg26.indd 1 SpecialReport_AGRM0913.indd 22 Experience: Retired November 2011 following 41 years with the U.S. Geological Survey • USGS Aggregate Resource Geologist 1977-2011 • Past Chair and Distinguished Service Award recipient, Society for Mining, Metallurgy, and Exploration, Industrial Minerals and Aggregates Division • Author of ASBPE award-winning columns - Carved In Stone, Aggregates Manager, 1998-Present Services Offered: Applied geology and geological research for construction rocks and minerals, with an emphasis on aggregates. • Resource evaluation • Non-technical writing • Expert testimony • Conflict assessment • Technical writing and review • Lecturer Contact me at: Text INFO to 205-289-3782 or visit 3/18/13 10:51 AM BillLanger_AGRM0213.indd 1 5/15/13 9:04 AM 8/16/13 2:13 PM

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