During a recent cooling tower shaft alignment, using a Fixturlaser XA Alignment System, when we started taking our initial set of measurements the laser beam went slightly off the “S” sensor detector, even in 60 degrees of rotation. Normally when the laser beam travels off the detector I use the laser beam, to perform the…
Read MoreWhen you opt to use your own shaft alignment tolerances instead of using the industry standards, how do you decide what to use? The subject of shaft alignment tolerances has been touched on before but a couple interesting discussions have taken place recently during training classes. The Fixturlaser XAs and GOs allow you the option to…
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Aligning cooling towers with spacer shafts can sometimes present a challenge. We recently provided alignment training and assistance to the HVAC Group at the Federal Reserve Bank in Richmond, VA. This was a Marley cooling tower, with a 60 HP motor, connected to the gearbox by a 48″ spacer shaft. That’s me, the trainer, inside…
Read MoreBowl mills are used to pulverize coal prior to being blown into coal fired boilers. They are very large machines with heavy rotating components usually driven by an internal planetary gear set in the bottom of the mill. A typical steam generation power plant will have multiple bowl mills for each boiler in the facility.…
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