Well after it's been sitting for a few days the transverse direction gets stuck and I have to try to turn the wheel while pulling on the end of the table to get it unstuck - after that it is smooth with no issues.
By "transverse" direction, do you mean the long left-right travel direction which normally has the hydraulic feed? I suppose that's right, since the other direction is normally called the cross-feed.
What you are describing is not necessarily a problem. If the machine is sitting for a few days or longer, the pressure of the table against the ways can force the way oil out, so that the top and bottom parts "wring" together like gage blocks. This can lead to galling of the ways but your machine shows no sign of that.
Try this: when you first turn on the machine, let it sit for a few minutes while way oil is circulated and pushed under pressure between the table and ways, BEFORE you try to move the table by hand or under hydraulic feed. If you do this, can you easily break the table loose with the handwheel? If not, then you might need to deepen the oil pockets (half-moon scrapes) in the bottom way so that they hold oil. Or potentially modify the oil grooves or scrape some oil pockets on the bottom of the table.
One other thing to check. If this machine uses the same oil for the hydraulic system and for the way lubrication, make sure it's the correct stuff that Harig calls for in their documentation. For example on my surface grinder and cylindrical grinder I use Shell Tonna S3 M 32 and 68. These have tackifiers and other additives that make them good for lubricating ways, but also work well as hydraulic oil.
If you just got the machine and are not sure what oil is in it, then I suggest that you start by changing the hydraulic/way oil for whatever was recommended by Harig, and see if the problem persists.