Posts Tagged ‘troubleshooting’
Are Shims Causing a Soft Foot Issue?
One of the many things I love about my job is the numerous challenges we face during the field alignment portion of our Precision Shaft Alignment Training. Prior to the training, there were some repeatability issues when attempting to perform a precision alignment on this piece of equipment. One of the main causes of non-repeatability…Read More
You Can’t Perform Precision Alignment on Un-precise “Stuff”!
Alan Garbers with Johnson Controls International contacted me regarding an alignment problem, and asked for my advice. Here is a condensed version of his email. A client rents portable chillers, and related equipment. They built a 125HP portable pump skid with a Bell & Gossett pump on a VFD. I was there to commission the…Read More
The First Rule in Precision Shaft Alignment is “Don’t Assume”!
This is an obvious statement and most of us know what happens when we do “ASSUME” with most things in life. However, we (The VibrAlign Trainers) see assumptions being made quite often during a precision shaft alignment. Several years ago, I read a book titled “A Millwright’s Guide to Motor/Pump Alignment” by Tommy “T-Hammer” Harlon…Read More
The Cure for Alignment Frustration!
A customer called me, extremely frustrated, because he could not get a good alignment. “I’ve spent two hours trying to align this stupid pump!” he said. He blamed the laser, the “cheap” pump his company had, the bad base, his bad trainer (me), and anything else that came to mind. I did not take it…Read More
Precision Shaft Alignment of Machines With Small Diameter Shafts
A VibrAlign customer recently called, stating they were having repeatability problems with aligning a small motor to gearbox to pump. After some phone conversation, I asked if they could send me photos of the machine, and the discrepancy in the measurements. After seeing them, I knew what the problem was. Machines with small diameter…Read More
Clean Your Rotating Machinery
Everyone knows that keeping rotating equipment clean and free of debris and dirt will prolong the operational life allowing for maximum efficiency and performance. Bearings, seals and other components will last longer and perform better plus repairs and alignments will be faster and easier. Motors, pumps and machinery with excessive dirt build-up will fail more often…Read More
Maintenance Strategies: Part Two
Preventive Maintenance, also known as planned maintenance, scheduled maintenance, calendar based maintenance, historical maintenance, etc. has its own set of pro’s and con’s. The theory is machinery has a life cycle. The probability of failure increases as the machine ages so maintenance needs to be performed prior to failure to extend its life and avoid…Read More
The NXA Extended Alignment Function – What is it? When to use it.
When training clients to use VibrAlign’s Verti-Zontal Alignment Process we show taking the 3rd measurement at a horizontal position, typically at 3 o’clock. This is simply for expediency and is NOT a requirement as Fixturlaser Shaft Alignment Systems can take measurements at any position due to the inclinometers in M & S sensors. If possible…Read More
The One Tool Missing in Most Aligner’s Toolboxes
I am going to pass along to you a gift – one that I believe could potentially cut your alignment times-maybe by more than half! One that could lessen loosening and tightening bolts, reduce frustration, and increase your “alignment” confidence substantially! Would you like such a gift? Well, here it is – measure your shim…Read More
Other Influences to Precision Shaft Alignment Results
Over the years we have fielded several technical support calls from maintenance personnel having repeatability and soft foot issues (during an alignment) all of which had a common issue; other influences. Meaning not the typical looseness, coupling backlash, soft foot issues. During the “heat of the battle” to get the precision shaft alignment job finished…Read More
Environmental Impact on Precision Shaft Alignment
We work with clients in many types of harsh climates, from cold with rain, sleet, snow & ice to hot humid and hot & dry and everything in between. Whatever the climate, the need for equipment maintenance intensifies with the severity of the climate. Harsh climate conditions will create situations where precision shaft alignment of…Read More
X, Y, & Z Axis. Does the Z Axis Affect Shaft Alignment?
Does the z axis affect alignment? In short, no it does not. There are aspects of the z axis that could affect the running of a machine, but rotational shaft alignment is not of them. What is the z axis? The X and Y axes are references to horizontal and vertical planes respectively. With regard…Read More
Benefits of Machine Maintenance and Cleanliness
As technical trainers, we travel all over the country visiting factories, mills, power plants and refineries. Just to mention a few. We see and work on equipment of every type and size. From small 10 HP electric motors and pumps moving cooling water, to house sized engines turning generators that power our cities. Out of…Read More
Unbalance is another common machinery vibration problem. Unbalance is the uneven distribution of mass around a rotating axis. Any rotating machine can have an unbalance problem, not just fans. It is important to note that once rotating machinery components are balanced, they should stay balanced until something changes. These changes are normally: Dirt, paint, or…Read More
What about the other 75-80% of your rotating machinery?
In today’s lean manufacturing, RCM (Reliability Centered Maintenance) is becoming more prevalent. Condition Monitoring is a big part of RCM. However, continuous monitoring is typically only done on “critical” equipment which amounts to approximately 20-25% of the equipment. The other 75-80% might get picked up during vibration rounds, which will then have to be analyzed,…Read More