Our interests in finding a tool which we can be used to understand and record the behavior of electro-mechanical machines, is continuing in this study. We have chosen escalators in our studies because their natural electrical and systematic designs are based on systematic cyclic and periodic behavior. Escalator nature of operation has given us an excellent platform to determine how regular or irregular or chaotic the behavior of an escalator is, especially when some sort of malfunction develop in it. We used two tools to achieve our objectives [1-6], the fractal dimension concept and the phase plan map as well as the Poincare section.

In this study we will concentrate our affords on the behavior of the gear box which drives the escalator. The parameter which will be looked at is the temperature of the gear box. Temperatures were measured from different locations in the gear box. The phase plan maps and Poincare sections of various traces from various temperature sensors have plotted, they have presented some interesting and useful patterns. The plots can be used as reference maps for the normal and up normal operation condition of an escalator.