Grasshopper 618

I'm new to this site and I'm looking for some help. I purchased a 618 front deck mower last year with low hours on it and I love the mower and the way it cuts but when you turn around it wants to dig in. To keep it from doing that we have been manually rising the deck just a bit when turning and that works,but it also created another problem with all the up and down movement it's wearing out the lift points. I've add oil and grease to these points which helps a little but not enough. Any suggestion beside stop rising and lowing the deck.

Thanks