As long as you don't turn the jam nut much. Just turn it enough to crack the two pieces loose of each other so you can unscrew the cable end.Leave the indicator chain in the hub.(You can unscrew the indicator chain from the hub to inspect it if you wanted to. Just screw it back in. It won't affect anything) When you put it back together, just screw the cable end all the way up to the jam nut and snug them together. You're gears should be bang on. No adjustment needed.