Maintenance Engineering Articles PDF

When rotating machinery is out of balance. Vibration from out-of -balance rotating equipment can be frightening. The ground shakes, machines jump about, hold down bolts come loose and parts break. An unbalanced rotating body will produce forces on its bearings and transmit them throughout its structure and into the foundations. Topics: rotor balancing theory, centrifugal forces, unbalanced rotating mass, dynamic unbalance, static and dynamic balancing of rotating masses, rotating unbalance force calculation, unbalance vibration analysis.

Get mechanical seals working properly. Mechanical seals are used to keep the bulk contents of rotating equipment such as pumps and compressors from escaping. They do this by sealing the shaft that protrudes from the casing. They require quality installation and operation conditions for a long life. Topics: mechanical seals working principles, how does a mechanical seal work, centrifugal pump mechanical seal, mechanical seal basics, precision assembly, barrier fluid, stationary seal, rotary seal, alignment.

Grease – use the right one for the job. The classification, selection and application of greases. Greases are designed for specific applications and if used in the wrong service they will not be effective. Compare the properties of greases and check those used in your equipment are suited to the service. Topics: grease selection guide, grease selection pdf, bearing grease selection guide, types of grease and their applications, grease types and applications pdf, grease grades pdf, lubricating grease guide, base oil, oil thickening polymers, grease additives pdf, coefficient of friction of grease.

This article presents a basic explanation of electric motor construction and operation along with twelve problems that can be encountered with their use. Most electric motors in industrial equipment are three phase alternating current induction motors. Induction is the creation of an electric current across a gap. Two types of induction motors are commonly used: squirrel-cage and wound-rotor. The names come from the way they are built. Topics: AC motor characteristics, electric motor mounting, electric motor problems and solutions pdf.

A simple fault finding technique. Fixing plant and equipment about which you know little is daunting. Here is a simple way to help you successfully fault find failed equipment. Topics: fault finding techniques, fault finding methods and techniques, fault finding techniques half split, mechanical fault finding techniques, system fault, repair, specialist, trace, investigate, telltale.

The efficient use of men, materials and external resources requires coordination and preparation. When a job starts, everything needed to do the job must be at hand, and must be right to use. The preparation required prior to the start of a job is done by the maintenance planner. The planner’s focus is to prepare everything needed to execute a job through to its successful completion and have it ready and on-hand before the job starts. How well the planning job is done directly affects how efficiently the men do the work and how long it takes for it to be done.

The Continuous Improvement Method of Thomas Edison. There is a good chance you can make astounding changes and achieve incredible performance improvements from your plant and equipment. It can be done with the method used by Thomas Edison to solve his problems and make his discoveries. Improvements in the order of 20% maintenance savings with 100% on-time achievement of production plans are possible. The method is that of continuous improvement. You start by proving it works for yourself first and then, once you are sure it works you introduce it to your people. Topics: Continuous Improvement, continuous improvement model, continuous development, continuous education, higher education, adult learning,continued education, continuous learning