Well, I have checked all the detail drawings and datasheet for all the spring cans installed in the plant. After the field check, I found all of them are out of setting i.e. none match to the Datasheets' C.L and H.L.

I have redesigned some of the spring hangers but will be replacing different size spring cans at the same location.

As I am unable to find the previously done stress analysis on this system, I believe the reason for having different size spring cans at the same location is because CAESAR-II gives 2 different sizes.