Originally Posted by Kozhe
I´d first lube the curtain shutters and then adjust the tension of the 1st one. It´s probably dry and forcing the tension before a cla might do things worse.
It probably will. I've seen a lot of FSU cameras with shutters retensioned instead of being CLAd. They won't work right like that. It throws off all but one speed, by a lot. It makes a lot more work for the repairman when they finally do get CLAd too. You won't save money by doing that instead of CLAing it, you'll just mess up your camera worse.