I received the exact same this friday. Great machine but i was using a face mill and the gib plate on the XY same loose and the whole table moved then you turned the handle. I had to tighten them up and it did the very same thing again.

One other thing is when you use the fine adjustment on the Z axis it doesn't move down the amount it says. When you set an amount and then move the drilling handle it drops down like 2-3 mm!!!!!!!!!!!!!! In not sure what to do about this !!

Help, I plan on stripping the machine down tomorrow to and clean it all and Lap the slide ways in. Locktight the gib screw in the correct position.