These units often have three have three motors 1.2kW each used to suck up water etc. before concrete pours. Likely you can disconnect one motor and blank it off and run with just two motors.
With these industrial units one has to understand they do not work on vacuum but air volatility. Having the correct gap between the pick-up and floor is very important. I have worked on some very large units around 60 horse power for cleaning streets and getting the gap right is an art. Set correct it could suck up bricks.
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