I do that to my 650 around once per year. Why - I had a 550 for 22 years, never lubed anything on the press. It did 10's of 1,000's of rounds. Every time it started to wear out (Slop in the linkage), I would just have Dillon fix it. But the 650 is a high volume press, and it seems I do more reloading now than I have ever done before so it needs more maintenance.