Principle Of Operation; Machine Configuration - SKF TKSA 40 Instrucciones De Uso

1. Introduction
Perfect alignment of machinery shafts is crucial to prevent premature bearing failure,
shaft fatigue, sealing problems and vibrations. It further reduces the risk of over-heating
and excessive energy consumption. The SKF Shaft Alignment Tool TKSA 40 offers an easy
and accurate way of adjusting two units of rotating machinery so that the shafts of the
units are in a straight line.

1.1 Principle of operation

The TKSA 40 system uses two measuring units both provided with a laser diode and a
positioning detector. As the shafts are rotated through 180° any parallel misalignment
or angular misalignment causes the two laser lines to deflect from their initial relative
position.
The measurements from the two positioning detectors automatically enter the logic
circuitry inside the display unit, which calculates the misalignment of the shafts and
advises on corrective alignments of the machine feet.
Fig. 1. Parallel misalignment Fig. 2. Angular misalignment
After a straightforward measuring procedure, the tool immediately displays the
misalignment of the shafts and the necessary corrective adjustments of the feet of the
machine. Since the calculations are done in real time the progress of the alignment can be
followed live.

1.2 Machine configuration

During the alignment procedure we will refer to the part of the machinery which will
be adjusted as the "Movable machine". The other part we will refer to as the "Stationary
machine".
Fig. 3. Stationary and Movable machine
SKF TKSA 40 5