I know of a triple-brush shampooer/scrubber called "Widetrack" made by Electrolux (Canada) Ltd. which is now called Aerus Canada, Inc.  The taupe & sand colors matched the System 90 cylinder cleaner, which was manufactured from 1987-88.  The model is either 2101 or 2101-A (similar shampooer-scrubbers made in different colors and without the "Widetrack" label were manufactured around the same time as yours, so the manual should not be too difficult to locate.  Go to the Aerus website (there is also a USA division) for contact information to request a copy of the manual.   Incidentally, you will find the company, model, serial and ratings information embossed on the base--the brushes need to be off to view completely.  Regards.