A laptop computer with PLC programming, communication, and operating programs is a necessary tool in today’s modern plant. Engineers, production supervisors, maintenance supervisors, maintenance technicians, electricians, instrument technicians, and maintenance mechanics all need to have PLC and computer knowledge, training and skills in troubleshooting.
You have four opportunities to trouble shoot centrifugal pumps and each opportunity can offer you a clue as to what is wrong with the pump. Let’s take a look at each of these conditions:
Too much heat can cause multiple problems with cartridge mechanical seals. Some heat problems are not seal design or seal installation related.
Root Cause Analysis has the potential of CHANGING people, IF the leader of the investigation knows of this potential. Far from “just another problem-solving exercise,”the root cause analysis should SLOW PEOPLE DOWN to the extent that they can see the truth of the incident under inquiry, WHATEVER THE TRUTH MIGHT BE. This paper focuses on two parts of our human nature which are large obstacles to root cause discovery, i.e., our unwillingness to slow down, and our unwillingness to let go of certain basic assumptions about life. Warning: This paper is designed to challenge the way you think about Root Cause Analysis.
I was asked recently to give a second opinion on the cause of failure of an axial piston pump. The hydraulic pump had failed after a short period in service and my client had pursued a warranty claim with the manufacturer. The manufacturer rejected the warranty claim on the basis that the failure had been caused by contamination of the hydraulic fluid. The foundation for this assessment was scoring damage to the valve plate.
The power industry’s operating and maintenance practices were held up to intense regulator and public scrutiny when on November 6, 2007, a Massachusetts power plant’s steam-generating boiler exploded and three men died. The Department of Public Safety’s Incident Report investigation determined that the primary cause of the Dominion Energy New England’s Salem Harbor Generating Station Unit 3 explosion was extensive corrosion of boiler tubes
Achieving Reliable, Maintainable & Available Systems www.acq.osd.mil. General Guidance Note: The following guidance is based on experience in weapon system acquisition. It is generally applicable
Carbon Graphite is probably the best seal face you can use in most of your water and chemical applications. Its corrosion resistance and natural lubricity provides two of the features we need in a good seal face material. The question sometimes comes up about how to insert the carbon into the mechanical seal. Should it be captured into some type of a metal holder or would you be better off using a “monolithic” or solid version?
When maintenance is allowed to interact with the plant and production Original Equipment Manufacturer (OEM), a prosperous relationship for both parties will often ensue. This OEM partnership results in first-hand information for maintenance to set up its maintenance approach, and valuable operational and design feedback for the OEM. There are seven main circumstances in which maintenance will interact or communicate with an OEM and form an OEM partnership.
Do you want to get weekly tips & tricks?
Torbjorn Idhammar is the blog manager for MaintenanceWorld.com.
A maintenance and reliability management consultant, Torbjorn has spent 25+ years in the profession and provides advice to clients around the world.
Natalie Johnson is the site administrator for MaintenanceWorld.com.
She is responsible for reviewing submitted content for the site and ensuring that it provides value to the readers of the site.
Copyright © 2010-2024 Maintenance World. All rights reserved.
Click here to join the Maintenance and Reliability Information Exchange, where readers and authors share articles, opinions, and more.
delivered straight to your inbox