Nilfisk AS510B-AU

No pad pressure – I purchased a Nilfisk AS510B scrubber-drier, I bought it 2nd hand, apparently 1 year old, I found the downward pressure of the pad was almost non existent and rang Nilfisk Australia to see if there was any adjustments, the person I spoke to acknowledge that the centre of gravity of this machine was over the back wheels and not forward, we discussed if there were any options to put more pressure at the front, nothing he could let me know, when I researched scrubber driers this one appeared to be what I was looking for, unfortunately the positioning of the batteries in the rear has made the machine not perform as expected, the scrubber barely hits the floor, I asked if I could add some weights to the pad surround to get a better downward pressure, he said sure just dont over do it, but couldnt tell me how much to add, I think Nilfisk needs to go back to the engineers and look at a way to position the correct weight onto the scrubber or pad, not sure what my next move is, but until I can achieve enough pressure on the scrubber it will sit in the shed gathering dust