New Kubota U25 King Post Bushes Clearance

Hi Guys, Operating a new Kubota U25 and there is an annoying thumping noise coming from the king post bushes and there is plenty of grease by the way.
There is a little play in the bushes which i would have preferred none being a new machine but there is about 3mm movement up and down.
Should the dealer of shimmed this play out before delivery do you thing or is this normal?

New Kubota U25 King Post Bushes Clearance