11 Steps to Ensure PdM Success

January 31, 2012

PLANT SERVICES • January 2012 Vibration analysis and condition monitoring are part of a bigger picture. Reducing maintenance cost, reducing production cost, improving uptime, reducing risk, improving safety, and improving product quality are some of the essential drivers for deploying vibration analysis and other predictive maintenance tools. They should be goals of any plant or […]

Laser Alignment: Lack of repeatability? Check components for looseness.

January 30, 2012

When experiencing lack of repeatability using a laser system, check the components for looseness: Brackets: Make sure that they are rigidly attached to the shafts (or solid coupling hubs). The surface imperfection where the brackets are mounted plays no role provided the shafts are rotated and the bracket is firmly attached to the surface. Risers: […]

Awards continue to roll in for Flatness Measuring System —LEVALIGN EXPERT voted Product of the Year

January 27, 2012

Our LEVALIGN EXPERT Flatness and Leveling Measuring System with an Automatic Rotating Laser has been selected by the subscribers to Plant Engineering magazine as a winner in the 2011 Product of the Year Awards. The annual Product of the Year recognition, now in its 24th year, is the manufacturing and engineering industry standard for new product […]

Internal component alignment of 40 MW A.C. generator

January 25, 2012

ENERGY-TECH • January 2012 At a power generating station in Florida, a severe electrical fault caused such extensive damage to a 40 MW gas turbine-driven generator that a complete replacement of the generator stator was required. An on-site spare generator core was available, but needed the faulted generator’s bearing support brackets to be installed to make […]

Importance of Fault Frequencies in Vibration Analysis

January 23, 2012

Fault frequencies are very important in vibration analysis, because they allow the analyst to correlate vibration data to specific components in the equipment that may be in some stage of failure (equipment faults). Fault frequencies change with any adjustment in the speed of the equipment being monitored. Most modern vibration data collectors and software will automatically […]

Flange Configuration Options for Alignment

January 16, 2012

When aligning a vertical flange-mounted machine, it can be helpful to tweak the flange configuration in your laser alignment system to take advantage of different shimming alternatives. For instance, if the OD of the flange is larger than the diameter of the mounting bolt circle, a good laser system will compensate for this by taking […]

Reliability and Conditioning Monitoring at ArcelorMittal

January 11, 2012

Back in July 2011, ArcelorMittal Point Lisas, Trinidad awarded TOSL’s Predictive Maintenance (PdM) Department with a one year contract for Reliability and Condition Based Monitoring. It was the first time a process like that would be implemented at ArcelorMittal. The contract is being executed by our Senior PdM technician, Mark Dwarika, and PdM technicians, Samir […]

What causes Machinery Unbalance?

January 9, 2012

Unbalance occurs when the rotor’s mass is no longer at the center of rotation.  Unbalance can be caused by many factors: Assembly error Machine tolerances Eccentric components Wear Corrosion Thermal distortion Mechanical distortion Material buildup Bent components Broken components Many things can prevent the successful correction of unbalance.  Equipment resonance, bearing issues, product buildup and […]

Alignment Tips For When Situation Gets Tough

January 4, 2012

The following tips are presented for consideration for when “the going gets tough”, meaning that problems like residual soft foot or “bad geometry” or becoming bolt-bound impede your ability to easily obtain an excellent alignment. First, a few definitions: Residual Soft Foot present: A bit more soft foot than you are comfortable with, but that […]

A Basic Guide to Understanding Vibration Analysis for Machinery Diagnosis —download now!

January 3, 2012

Unbalance, misalignment, bearing failures, gear faults, motor electrical problems, etc. are typical faults experienced in all equipment. Identification and elimination of these faults and other issues are critical to maintaining the health of your plant equipment. Healthy equipment means lower maintenance cost, increased uptime, better product quality and a safer work environment for employees. This […]