Ferrous density analysis can help predict and save machines from disastrous failures. It’s an important oil analysis tool for machine condition monitoring and predictive maintenance. In this video you’ll learn about two types of ferrous density testing: Direct-reading Ferrography and Particle Quantifier (PQ Index).
Hydraulic systems can be very simple, such as a hand pump pumping up a small hydraulic jack, or very complex, with several pumps, complex valving, accumulators, and many cylinders and other actuators. Yet, most of the problems encountered in all of these systems are often traced down to a few basic issues. This article will help you to narrow down and solve most hydraulic system problems by focusing in on the most common causes of malfunction and poor performance. Continue reading →
Elemental analysis is the most fundamental test used in oil analysis today. Today’s elemental analysis reports provide between 15 and 20 different elements that are related to wear metals, contaminant metals and oil additives. Both Atomic Emission Spectroscopy and Rotating Disc Spectroscopy are discussed.
Impact or oscillatory damage, how many of us think about these when we are storing, handling and installing bearings or even during the repair or aligning of machines/equipment with rolling element bearings?
In Part 1 of this three-part series, published in the July-August 2009 edition of Machinery Lubrication, I talked about what makes a good preventive maintenance (PM) task and how we need to capture explicit knowledge about each task so that it can be executed with consistent and continuity. Key to this is to ensure that the work instructions include sufficient detail such as grease type and quantity to take the guesswork out of lubrication. In Part 2, I will explore the way in which lubrication PMs are actually provided to the technician, mechanic or operator. Specifically, I will outline what I like to call “hybrid” PMs and the problems they create for controlled management of change. Continue reading →
In an ideal world, multiple components could be produced in a single piece, or coupled and installed in perfect alignment. However, in the real world, separate components must be brought together and connected onsite. Couplings are required to transmit rotational forces (torque) between two lengths of shaft, and despite the most rigorous attempts, alignment is never perfect.
To maximize the life of components such as bearings and shafts, flexibility must be built in to absorb the residual misalignment that remains after all possible adjustments are made. Proper lubrication of couplings is critical to their performance. Continue reading →
Still relying on paper-based permitting? Why not let compliance-savvy software bring you out of the dark ages?
Industrial environments inherently possess serious threats to workforce safety and health. Around the world, government agencies establish occupational safety and health standards expressly designed to eliminate or mitigate potential threats. Continue reading →
by John M. Gross
from Plant Engineering and Maintenance (PEM) Magazine
Whether it’s turning off lights, idling back process equipment and fixing compressed air leaks to energy audits and installing compressed-air management systems-reducing utility costs can take several forms. As with any project, the return on investment should guide you on the projects that you select.
Let’s start with lighting and air leaks. While turning off lights and idling process equipment may generate a huge savings, it sends a message about conservation and preventing waste. The key is to not create any safety hazards and have a plan for start-up. Larger savings can be found with air leaks. Continue reading →
Semiconductor devices are almost always part of a larger, more complex piece of electronic equipment. These devices operate in concert with other circuit elements and are subject to system, subsystem and environmental influences. When equipment fails in the field or on the shop floor, technicians usually begin their evaluations with the unit’s smallest, most easily replaceable module or subsystem. The subsystem is then sent to a lab, where technicians troubleshoot the problem to an individual component, which is then removed–often with less-than-controlled thermal, mechanical and electrical stresses–and submitted to a laboratory for analysis. Although this isn’t the optimal failure analysis path, it is generally what actually happens.
What follows is a brief description of how to properly perform semiconductor failure analysis without introducing unwanted artifacts into the analysis. Continue reading →
by David Roll & Ken Duffie & H.L. Bouton, Plant Safety & Maintenance
On the job accidents and injuries are most often a result of negligence and unsafe working conditions. In an effort to protect workers, the Occupational Safety and Health Administration (OSHA), created standards 1910.132 and 1910.133, to address requirements for providing Personal Protective Equipment (PPE) and eye protection in the workplace. However, most employers find it hard to sort through the standards to get to the heart of what they really mean in everyday life. Continue reading →