If you have unexplainable vibrations in installations such as a pump and motor etc, the Hot Check application can help pinpoint your doubts and the cause of the vibrations. If you do not have the OL2R laser fixtures and cannot, therefore, carry out a measurement whilst the machine is running, there is another alternative of checking the thermal influences on a machine train.
A measurement should be taken as soon as possible after the machine has been shut down, whilst it is still hot, and another measurement taken once it has cooled to ambient temperature. The Hot Check application is then used to compare these two measurements. The difference between the two measurements is used as Target Values when shaft alignment is next performed.