Meyer 30 3.5 - focus ring problem

[fikkser]

Hello! You who has seen this lens before might know this problem. The focus ring was turning heavily so I decided to do the first repair of my own.

I opened it up, cleaned away old oil and added new litium grease as recomended by a lot of people.

We number the parts from the left 1-4.

After the cleaning and assembling part 3 (consists of 2 rings) focus ring moves very nicely. Even when I put part 3 on part 2 it moves smooth. The problem is probably the bolts on part 3 (you can see one on the left side of it sticking out). When I put on part 4 everything gets hard to turn. The part 4 puts pressure on two springs that pushes the bolts in to part number 2.

Is there anything to do about this? The springs are quite hard to fit, but I think I got them in where they should be, tried a couple of times.

As you can see in the picture I've got another 30 and it is much easier to focus, but I'm not opening it as I might get the same issue ^^

Thanks