- Jan 30View SourceStefan,
If it's new, all it may need id to tighten the nut at the top of the column. It may have come with a wrench, at least my HF mill did. You can hold the spindle by inserting a larger Allan wrench, pick the largest that will fit. Tighten until the play is removed.
If used, then you need to do some checking for correct bearings etc, but 90% chance that it needs the same thing.