SkyWatcher EQ60R Pro Mount Counterweight Balance Sensitivity Question
I've had this mount for a few years and it's received light to moderate usage. Until recently it was very sensitive to moving the counterweight up and down the bar to balance everything. I only need to use one weight and it sits about 2/3 of the way down the bar. Recently it's not nearly as sensitive. Instead of the balance changing after I move the weight an inch or so it now takes 4 to 5 inches of movement to see a noticeable change in the balance. This is occurring in warm temps. Even stranger is that it still tracks really well at 180s exposures. I'm concerned about damaging something internally. Any thoughts on what's causing this and how to fix?